Fitness And Activity Tracker Reviews 2020

Fitness and a well-balanced diet are part of today's modern everyday life and are sought after by many people. Particularly in a very hectic time, which places high demands in work and life, a balance is necessary, which includes on the one hand wellness and relaxation, on the other hand sport and fitness . A well-balanced training program, the use of exercise bikes, massages, going to the gym, practicing yoga, Pilates or similar methods deepen the awareness of the body and thus strengthen the mind.

Nevertheless, man is not fit and ambitious every day. It is also often necessary to overcome one's own bastard. That requires motivation and inner drive. It is helpful to have Activity Trackers that provide a good incentive to continue a training program or to convince yourself daily that the body is healthy and what its performance has been. Since man differs in character and type, some need more, others less willpower and determination.

What is an Activity Tracker?

There are various activity trackers that can either be worn on the body or directly on the arm, and can also be a clock and tracker in one or allow the reception of sms and mails.

The  Activity Tracker often has a small display and is adapted in size to the daily use, therefore, also very inconspicuous usable.

It measures the entire activity and sleep of the wearer around the clock. Acceleration sensors and a small processor are used to record, analyze and convert the measurement results using software.

An activity tracker is an electronic device that allows both recording and syncing and sending all data . Activity trackers are often used together with the PC or smartphone to analyze and synchronize the data . Fitness and health remain perfectly under control. The calorie consumption, the distance of the running distance, the number of steps, the heart rate or the sleep quality are measured. Many modern models also have additional functions.

As the range of functions of fitness trackers grows, the difference to more expensive sports watches is barely given, but the price is much cheaper. The Activity Tracker is available for attaching, as a bracelet, as a device with a necklace or as a hybrid watch, enabling motivation and a healthier life. They can be worn on different parts of the body and used visibly or hidden.

All relevant data can be monitored and compared at any time. The data acquisition takes place by storage and by transmission to the computer or the Smartphone.This is wireless, z. B. by Bluetooth, possible. Depending on the type of Acitivity Tracker , the models are available in different sizes and colors. Many also have a touch screen, are able to automatically turn off to save energy or to notify the wearer when he has to move a little more or z. B. has received a call or an SMS. Some models are also waterproof and can be used for swimming and diving.

Especially the versatility of use makes the Acitivity Tracker interesting for many people. They are used by professional athletes as well as by people who are only occasionally involved in sports.

How does an Activity Tracker work?

Activity trackers work electronically and are small pedometers with built-in sensors and altimeters. The different sensors perceive the movement of the user, counting the steps and the distance traveled and calculate in connection with the energy expenditure and the heartbeat the fitness and activity. This is displayed in numbers and a corresponding graphic , with all data stored reliably. The sleeping habits are also analyzed and an overall result delivered. Many modern devices are also able to remember or vibrate the wearer. They have an alarm and reminder function.

In order to define the functionality more precisely, it is necessary to take a look at the various sensors which are installed in an Activity Tracker during the test and comparison and are combined with each other.

Common are typical motion sensors , acceleration sensors, optical and bioelectric sensors, a gyroscope sensor, a GPS receiver and barometric altimeter. You determine the values as curves and put the whole thing in a schematic measured values .

Motion and acceleration sensors

The motion sensors form a crucial part for the acquisition of all measurement data and determine their function, the entire activity and movement. They are combined with acceleration sensors and the gyroscope sensor so that a spatial detection is allowed in the test . The sensors are microelectromechanical systems and mounted on electronic components. The acceleration sensors detect the linear movement on three levels. The gyroscope sensor retains the rotational motion analogous to movement and acceleration. This creates the measurement in three-dimensional space.

In physics, acceleration is the change in the body's motion and part of Newton's first and second laws . The movement change takes place by the action of force. When a dormant ball is triggered, it starts to move and accelerates the rotation and movement for a moment. The same applies to the braking of the ball,which is a negative acceleration . This movement detect the sensors as soon as the carrier of the Acitity Trackersets in motion or changes the gait. Also direction changes are recorded. Capacitive sensors, piezoelectric sensors, Hall-effect sensors or piezo-resistive sensors are required. Due toInertia and acceleration will deflect the mass. The deflection can be measured precisely.

Gyroscope sensor

To describe this sensor in more detail, the example of a turntable , as it is known from children's playgrounds. As soon as it starts to move and reaches a certain speed , it is hardly possible for the passengers to simply walk straight ahead. This is due to the acting force called Coriolis force . A gyroscope uses this physical effect and can detect the force acting on moving bodies and infer the respective acceleration. In conjunction with the straight-line acceleration sensors, the gyroscope sensormeasures the rotation.

Optical and bioelectric sensors

The optical sensors in the Activity Tracker measure the heart rate and heart rate. They sit appropriately on the inside of the device and have direct skin contact with the wearer.

In this case, by receiving and sending different pulses, the amount of blood that moves under the skin, from which the heart rate is determined and derived. Bioelectric sensors work like body scales. Through each organism flows a weak current, thus allowing the measurement of the resistance , from which the sensors detect an exact composition of the body, for. For example, how much fat is present, because they conduct the stream worse than areas with water.

GPS and altimeter

Not all Acitivity trackers have a GPS receiver .Mostly this is installed in sports watches or in more modern fitness trackers and can capture within a few meters where the user of the activity tracker is. If this data is collected over a longer period of time and stored, can distance covered are determined, also the distance and the required time and speed.

Barometric altimeters determine the air pressure and thus record the height-dependent conditions for the user of the Acitivity Tracker . This ensures a high accuracy of the measurement, if the weather and the temperature are constant. A disadvantage in the test for the installation of a barometer is a required reference point with a certain height above zero. Only here can the air pressure be measured.

Which Acitvity Tracker is available in retail?

As the trend towards the use of fitness trackers grows, there is now also a large selection of such models in the trade and the Internet. There are cheap models that are worn as a clip or bracelet and bring the standard features along with more expensive and high-quality models , which allow better measurement and data acquisition with better technology and many sensors. For the purchase plays a role, what the tracker is used for and what exactly he should measure.

Bracelet trackers are usually worn permanently and should allow a high wearing comfort . As a clip , an Activity Tracker is simply worn on the belt, bra, on the pants or in the bag. They are a bit smaller and very light, so hardly noticeable, but also less able, for. B. to measure the pulse, since there is no direct skin contact. Above all, they are suitable for inconspicuous measurements.

Devices for measuring steps and movement

The basic function for measuring the steps is provided by almost all activity trackers. You do not necessarily have to have a display or a touch screen , you have motion sensors and you are simply set up.

In addition to step counting, some also offer a floor detection, a compass or an altimeter. They can be waterproof or waterproof , then used for swimming. The transmission of the data is mostly wireless on Smartphone and PC possible, so that the data can be evaluated.

Devices for measuring heart rate and health

Activity trackers designed to capture the pulse and heart rate provide health control and usually provide this additional function through direct skin contact on the arm or via a chest strap. The models are also designed to count the steps, often equipped with motion and acceleration sensors. They allow an extended monitoring of fitness and exercise , which is interesting for athletes and self-optimizers.

Even in endurance training, it is useful to measure the heart rate in order to train in the ideal area. Similarly, with the Acitivity Tracker in the test, a diet can be superbly supported, with the bracelet then being worn permanently to accurately capture all the data. Many activity trackers of this type provide functions such as measuring calories and vital signs, as well as measuring body and skin temperature .

Devices for recording the quality of sleep

More specifically, physical condition and health can be captured with activity trackers that are also capable of analyzing sleep at its various stages . For a restful sleep , the REM phase plays an important role. It expresses itself through minimal physical activity, dreams and faster eye movements, as the brain is highly active in this phase and processes and classifies all experiences. At the same time, the muscles are inactive, which means that this phase can be precisely determined.

Similarly, in the deep sleep phase, body temperature increases while the brain gradually shuts off. Now, the body begins to regenerate, making it less receptive to external stimuli and releasing its own growth hormone , which strengthens the immune system, forms cells, and repairs damaged areas. Both phases are important to promote healthy sleep . With an Acitivity Tracker , the sleep can be recorded in the habits and can then be improved through precautions.

Benefits & Applications of a fitness and activity tracker

The daily carrying and recording of your own dataallows a good overview of your own fitness, health and activity, also allows an improvement and increase in sports activity. The training will playfully become a new form of self-control. It measures the steps, the distance traveled or the number of elevated floors, calories burned, sleep, heart rate and heartbeat. For this purpose, the determined values can be divided and compared, for. Through social media or online communities.

Depending on how high the Acitivity Tracker is, the accuracy of all measurements can be better or worse. Sometimes cheap devices can not tell if a person is moving or simply clapping their hands. Similarly, in the test and comparison, certain movements have an adverse effect on the measurement, e.g. Dancing, swimming or cycling. The results can then be more or less falsified. In this context, the type of attachment of the Activity Tracker plays a role, z. B. be extended by a chest strap when it comes to the measurement of the exact heart rate.

Many Acitivity Tracker also offer other fitness-related features beyond basic measurements. They allow the measurement of movement and body day by day, which is interesting for health-conscious people and athletes.

The evaluation is possible through easy-to-understand statistics and can help to design an adapted trainingplan or set up a fitness program .

Seeing how many steps have been taken or how many calories have been burned in one day can help to increase fitness the next day. Important is the general active movement that is initiated by the Activity Tracker , whereby a reminder function is favorable, which indicates from time to time that some movement is necessary.

The Acitivity Tracker does not have to be worn around the clock, makes sense when movement prevails, z. Walking, jogging, swimming and hiking. In a resting position , the Activity Tracker only makes sense when sleeping. Is worked or sat, z. As in front of the PC, the tracker can be removed as a clip or bracelet, as he otherwise holds the tapping on the keyboard for steps and records this movement and analyzed, which distorts the result. High quality devices, eg. With GPS module, distinguish the movement and recognize when it comes to arm movements or steps.accelerometersIn turn, it allows us to capture the difference between walking and jogging. Even cycling can then be determined as a separate movement .

The data recording is saved and can be synchronized. Then the data can be transferred to a PC or a mobile device. For smartphones , there are various apps that are provided by the manufacturer. These are mostly compatible with all operating systems.

Some activity trackers are motivated by the symbols, smileys and funny sayings that reward movement and success. Professional athletes, on the other hand, attach importance to a built-in GPS receiver in order to be able to better analyze the routes later through the app or on the computer. Also, an Activity Tracker can be used as nutritional advice, in which case the appropriate software is necessary .

The data can be collected and analyzed over a longer period of time, the individual behavior can be accurately documented.

For people who sit a lot or generally do not move much, the Activity Tracker can be helpful because it has an alarm function and indicates by light or vibration that some exercise makes sense. Many models then simply show a red light, which disappears only when the user has set in motion in the test.

Activity trackers are tested according to these criteria:

With the wide range of different fitness bracelets and activity trackers , a test and comparison is helpful in highlighting the positive characteristics of the models, comparing them and presenting them in the features and benefits. A comparison offers good buying advice, compares the models to each other and also examines the individual applications, the equipment, the material and the durability of the tracker. An easy operation and application is the alpha and omega.

Practical benefits - operation and applications

The operation of the small models should be simple and intuitive, allow data acquisition in full, and also simplify the setting of functions and display. In the test, the activity trackers are therefore scrutinized for handling. Likewise, a glance at the associated software or the applications used is thrown. An analysis should be as accurate and reliable as possible, and a good overview of your own activity can be gained.

Material and workmanship

In order for a fitness tracker to last a long time and allow for continued use, the workmanship should be excellent and allow the materials to be light weighted. This concerns the case, the bracelet, the display and the buckle.

The display, if present, should have a good resolution , be adequately lit, and display the data sharp and clear.

The bracelet should have rounded corners and edges, be neatly processed while being flexible and comfortable. The closure should be stable and easy to handle.

Motivation test

Depending on the type of measurements and functions, the test and comparison are scrutinized to what extent the tracker can increase its own performance, how the displays can motivate, or if the reminder function fails. It is tested whether the alarm function is more practical than sound , vibration or light. In addition to the control , the motivation of the device in the test is crucial for a practical use. Also here is the selection of features and apps tested z. For example, the analysis by the software or the sharing of data in apps and community.

Range of functions and measurement data

Many modern activity trackers have a large number of useful functions that, in addition to the basic equipment, also allow other measurements or usage options. So a tracker can also be used as a phone or MP3 player , determine the location, determine the route, plan the training and nutrition. In the test , the functions are checked and the interaction of several functions is examined. The measurement data should then be as precise as possible, may contain slight deviations, but the result should still be displayed uniformly.

Storage capacity and battery operation

The reliability of data storage and battery operation are important for using the Activity Tracker . The test will look at models with batteries and rechargeable battery, with run time and charging time in mind . The battery should last at least 3 days . Many devices create one to two weeks. Batteries in turn last longer and need to be replaced about every 3 to 6 months . Others are as durable as a normal watch .

What do I have to look for when buying an Activity Tracker?

If you decide to purchase an Activity Tracker , you can tailor the type of device to the intended use . For this purpose, it plays a role, which data is to be recorded and measured and what the tracker is used for. As for motivation, for self-optimization, in a diet or a more sophisticated training program. In this context, different functions and measurements are crucial, which also allow a long-term analysis, beyond the step counting then also the recording of calories, vital signs, sleep patterns and heart rate.

Size, weight and purpose

The Activity Tracker is usually small and lightweight, can be attached to the body as a clip or as a bracelet or simply be carried in your pocket. They should not weigh more than a few grams and be barely noticeable when worn. This is important not only for everyday use, but also for use in sports and fitness. The size is usually given in S, M or L when the Activity Tracker is worn as a bracelet. The length of the band is then between 14 and 22 centimeters.

Some models also offer features similar to sports and running watches, or can be combined with the smartphone to show incoming calls and mails as well. The tracker should not be too big, it can also be worn like a watch or jewelry, making it ideal for work and everyday life.

Design and color

Even if the presence of a display or the general design is of secondary importance with regard to the function of the Acitivity Tracker , the device nevertheless remains a constant companion and should therefore also be visually appealing. A pleasant color and shape or a comfortable touch operation are beneficial in the test. A backlight may be useful if the tracker is worn around the clock.

There are very chic and simple models in black, white or silver design or brightly colored models in monochrome or multi-colored design. Activity trackers without a display have only a few colored LEDs and indicate the status and battery level. If you value more precise data, you should use a tracker with a display that can also be used elsewhere, e.g. B. as a phone or MP3 player. The display should then be easy to read and bring a good light intensity and resolution.

Resistant materials and a high wearing comfort

The Activity Tracker as a bracelet should sit comfortably, have good and robust materials, be skin-friendly and free from harmful substances.

A lightweight construction and the ergonomic shape increased the wearing comfort. Other models are so small that they fit in the hand and can also be fixed inconspicuously.

The design is designed so that the sensors are well protected and accurate measurement is possible. Of course, the values can only be tendencies and approximations. With GPS , however, the distance covered or the distance traveled can be determined exactly. Very practical in the test are models that are waterproof or water-repellent . This is not only cheap in bad weather or for use in swimming, but also for protection against sweat. However, if the tracker is only water repellent, it is not suitable for swimming and must also be removed under the shower.

Functions, measuring accuracy, pedometer and heart rate monitor

The functions and type of measurements are important for the purchase and also determine the versatility of the application. The better and more expensive the Fitness Tracker is, the more accurate the data measurements are. But even simple models allow you to count steps, calories, heart rate and distance, all active minutes, or the time in which less activity prevails. Here, Activity Tracker to be a good watch parts, show date and time. Advanced features include heart rate monitoring, sleep analysis, daily goals assignment, activity reminder, and in-progress messages and phone calls.

Battery, compatibility and transfer to other devices

A high-performance battery is important to enable a higher consumption, should last for several days and be charged quickly. If the Acitivity Tracker has a display or special functions, the energy consumption increases. For the exact analysis of the Fitness Tracker should then be able to be permanently in use, without the battery gives up the ghost and so lost data. In general, activity trackers have a low consumption and are equipped with purpose- adapted batteries . Depending on the respective scope of services, they can offer terms of between 3 to 365 days . There are also a few models Battery operation, which then have to be changed.

Via Bluetooth , the transmission of all data and measured values can be wirelessly to the PC, the tablet or smartphone, as the tracker unfolds its full potential in the test . Synchronization is also possible in this way, whereby a software provided by the manufacturer can be used.

The tracker should have correspondingly the Bluetooth function or appropriate interfaces , then allows a fast processing and sharing of the data. All can additionally be charged with a USB cable in the battery or enable a transmission.

Brief information on the leading manufacturers of activity trackers

That many people generally move too little, according to statistics is a fact. This applies to the entire lifestyle, the facilities offered to people, driving in the car, sitting at the desk or lying on the couch. Unfortunately, the consequences are anything but pleasant and can also cause serious problems . Back pain, tense neck, exhaustion and inner restlessness are clear signs that something needs to be changed. Then also have manufacturers responded and Activity Tracker brought to market that allow control and motivation. Movement is rewarded, lack of movement indicated. Many activity trackersare provided with a community feature , making it easier to stick to it. The models are mostly designed for Android and iOS , including Activity Tracker from "LG" or "Nike". Important other manufacturers are the following:


The American company "Fitbit"specializes in watches and fitness trackers, is headquartered in San Francisco and manufactures electronic devices bearing the brand name of the same name to help improve fitness and record workouts. Cheap models are offered as simple pedometer or very elaborate Activity Tracker, which can also measure body parameters, heart rate and sleep quality. All data can be transferred and synchronized. The evaluation takes place via a smartphone or PC, via an app or software. "Fitbit" was founded in 2007, also develops the associated software for the products. To use the devices, it is necessary to create an account on the Fitbit website and to agree to the privacy policy specified therein.\


With several activity trackers, including the "Samsung Gear Fit", the company has delivered a good and cheap alternative to the well-known manufacturer "Fitbit". "Samsung" is one of the leading manufacturers of "Consumer Electronics" and known for its high-quality smartphones. As a global electronics company, the products are constantly evolving. In addition, the fitness market is interesting, with compatible solutions are required. "Samsung" comes from South Korea, is based in Seoul and was founded in 1969.


"Garmin" is a manufacturer from Switzerland that designs and markets navigation receivers. It became known through its miniaturization of the company's GPS receiver, which also allowed for the proposed Activity Tracker positive developments. Otherwise, the products were used in road traffic, air navigation and outdoor. "Garmin" is based in Schaffhausen and was founded in 1989. Other branches can be found in Kansas and Taiwan.


Heart rate monitors, sports watches or activity trackers are also available in a large assortment from "Polar". The test is a Finnish company based in Kempele. It was founded in 1977 and soon became one of the leading manufacturers of wireless pulse and heart rate monitors. The resulting excellent combination of clock and tracker is not surprising. The first model was a heart rate monitor that could not only be used for inpatient training but was worn directly on the body.


"Jawbone" is known for its Activity Tracker and Bluetooth headphones and also offers a wide range of different devices. Founded in 1999, the company is headquartered in San Francisco and has several affiliates including BodyMedia and Massive Health. The activity trackers are offered under the name "UP", can count far more than just calories and steps, also have a professional design. "Jawbone" relies on Activity Tracker, which gives it as a bracelet or watch.

Internet vs. Retailers: Where is the purchase of an Activity Tracker most worthwhile?

The Activity Tracker from various manufacturers is available in stores, in gyms or on the Internet in a slightly wider range . On-site customer service is possible.

Most of the time, however, the retail industry only offers a range of specific brands, while the full range of all manufacturers and devices can be found online . Compared to the trade offers the Internet a small price advantage.

Many vendors want to undercut their competitors, which then offers the customer some special offers and discounts. Since fitness and activity trackers ultimately show their performance only in the case of longer-term use, a detailed test before purchase is also not possible in retail. The models can be ordered more conveniently online . In addition there are many customer reviews that inform about how the Activity Tracker has proven in practice.

Worth knowing & advice

The story of the Activity Tracker

The review of various training programs and detecting the body data was with the first pulse watches and heart rate devices groundbreaking for the further development of the small data loggers that are commercially available today and help improve fitness and motivate the user. The data can itself be analyzed or shared in an online community . Members can spur each other on or compare their results.

The trend was successful in many countries, with the models not only being used in fitness and sports , but also providing electronic help with dietary advice or lifestyle change. The devices were designed in such a way that they demanded above all discipline and commitment from the wearer in order to guarantee a long-term success.

Originally, such measurements were cumbersome written and then manually created in tabular form on the computer . This necessitated the development of an improved technology that allowed for the observation and recording of all physical activity, which was made possible by microprocessors and sensors that functioned on a very small scale and could easily be worn directly on the body.

Predecessors for the Fitness Tracker were various heart rate monitorsfor athletes, which existed as early as 1981 , including the Finnish company "Polar" , and smaller bike computers, which were about the size of a normal wristwatch and were able to the distance, duration and speed to grasp the route. At the beginning of 2000 , there were various devices for ordinary consumers that allowed wireless connection to gym equipment. There are now portable Activity Tracker in different versions, which can be combined with a fitness training.

Numbers, data, facts about the Activity Tracker

Practical tips for sports and measurements

Most activity trackers are connected to a software or an application. Especially in connection with a mobile device, the Activity Tracker is particularly easy to use.

The app developed by the manufacturer collects all data, shows the calculated result and detailed listings. This allows the implementation of a diet as well as the planning of a fitness program. In most cases, the data is displayed as a bar chart and then appear directly in the app on the home screen of the smartphone. If the bar is tapped directly, the exact measured values can be viewed .

Decisive for the use of an activity tracker is in the test and comparison, of course, the regular use. If all data is to be recorded accurately, the tracker must be worn permanently, and should then be watertight and robust. Favorable here are the practical and very narrow bracelets designed. You can then take a look at your entire own movement, calorie consumption, heart rate and sleeping behavior.

Some models offer a high-resolution and color display that is easy to read even in poor lighting conditions. The simpler models work with LEDs. Familiar with models that have the reminder function and are also able to assign and calculate daily goals. The scope of functions is growing. To find out which ones actually make sense or meet individual requirements, it is important to analyze your own performance needs before you buy.

Training programs, pulse and heart rate measurement with the Activity Tracker

The measurement of heart rate and heart rate differs and is output in different values. The pulse rate is the wave-like movement of blood in the vessels that results from the heartbeat.

The heart rate is the momentum itself and the number of beats per minute. Both values are reasonably identical in a healthy person. Therefore, activity trackers and heart rate monitors usually measure the heartbeat.

For sports, endurance and fitness, measuring heart rate makes sense to understand how far the body can be stressed. The pulse is an indicator of body effort. In a rested and relaxed state, the heart beats about 70 times a minute. Physical or mental stress increases the pulse rate. The physical stress also drives the heartbeat.

For the measurement with the Activity Tracker , the resting pulse and the maximum pulse play an important role, which must be taken into account during training planning. The maximum heart rate includes the heart rate at a maximum load on the body. If this is measured with the Activity Tracker , it is easy to predict when the fitness limit will be reached. This allows for good monitoring and self-control, so as not to strain the circulation too much and make fitness meaningful.

The maximum pulse is divided into several zones, which concern the active solid change, the aerobic zone and the anaerobic zone. If the training takes place at a heart rate of 70 percent of the maximum pulse, energy of about 60 percent fat is provided. The training can take longer. It burns most of the fat. Training in this area helps to lose weight in the long term.

When training in the heart rate range between 70 and 80 percent of the maximum pulse , the energy is reduced by fats to 40 percent . 60 percent are provided by carbohydrates.

The training in this area helps to build up the condition and is also called fitness zone. The training should last at least 30 minutes and be implemented regularly.

As soon as the pulse beat in the test and comparison is above the stated percentage, the body is exposed to greater stress, and also the breathing is not sufficient to burn all the carbohydrates, the cells need for the construction. The muscles can then acidify, which is why only a short and powerful workout is possible. Professionals and competitive athletes who want to increase their athletic performance once again train in this area of the performance zone. This is how muscle and strength mass can be built up.

The top red zone indicates about 90 to 100 percent of the maximum pulse. In this area, only endurance athletes, z. As marathon runners to increase their own speed again, or athletes who implement an interval training . Here is a change of effort. In the red zone training is only possible in a few minutes and must be combined with other zones. This also boosts calorie burning .

Before starting the workout, it is always important to know the maximum heart rate . Likewise, the rest pulse says something about the physical fitness. In untrained people this is usually in the upper range. The cardiovascular system must be strengthened accordingly, in order to keep the resting heart rate in the low range. Even with a weakening of the immune system or disease, the resting heart rate is high.

The Activity Tracker can be used to measure the first pulse range, which is also known as the health sector. This is chosen by athletes as an entry point to gradually strengthen the cardiovascular system .

The activity tracker makes it easy to see how difficult it is to reliably hold the first pulse range. It is about 50 to 60 percent of the maximum pulse. Regular training in the first pulse area strengthens the immune system.

The 10 most important questions about the Activity Tracker

1.How accurate are the measurements with an Activity Tracker?

The accuracy of the measurement always depends on the particular device and the power that the processors and sensors provide. Many Activity Tracker are relatively simple and therefore allow only an approximation to the values. For this purpose, the data are optimally analyzed in the test , also determined more accurately with age, height, weight and gender. For competitive sports more expensive fitness trackers are useful, which also measure the heart rate via step counting. A hundred percent accurate measurement is not possible with any Activity Tracker .

The deviations are between 1 and 7 percent . Even sports watches have their problems in this regard. The expensive smartwatches, which also allow reliable measurements when riding a bicycle, have proved their worth . If you need a little more detailed analysis, you can fall back on models that have acceleration sensors in the test and can precisely distinguish the movement. A realistic image of the actual activity is only possible with a long wearing period , since the data are collected and calculated and the deviations in the test are gradually leveled out.

2.What should be considered in terms of data protection?

Many activity trackers are connected to an app and even require signing up for an account. The data collects the identity and privacy of the user, as well as other data, including age, gender or weight, which can be made voluntarily. When used with fitness communities , personal information is always shared with other servers on the Internet.

Likewise, smartphones and mobile devices connect to the tracker via the app and upload the data to the phone. The synchronization is usually automatic.

Exceptions are activity trackers that work with software for the PC and capture the data in a cloud of the manufacturer. Also, there are few models that allow data transfer only via USB cable . The completely new visibility of such body data arouses the interest of advertisers, hackers and health insurances. Therefore, it is always advisable to check exactly what information is provided.

3.How can an Activity Tracker be combined with a diet?

When dieting, the Activity Tracker is a good companion, can also set up a personal nutritional profile. Above all, it motivates staying power by displaying calories burned and visibly improving physical fitness. It is possible to use set goals and always face challenges. The devices have a reminder function and call for more movement. Likewise, the achievement of goals is rewarded by symbols or encouragement. Activity trackers are also interesting in connection with Weight Watcher, if in the app the appropriate connection and registration takes place.

4. What can be measured with an Activity Tracker?

Basically is a Activity Tracker, the entire movement behavior measured. This includes steps taken, pulse, calories burned, distances, floors, sleep quality,and calories consumed . The data are compared with the information of the user and converted. It is also possible to define individual goals, eg For example, take 1500 steps a day, which takes about 10 minutes to run, or burn 500 calories per day. Via software or app , the data can then be collected and evaluated as statistics and diagrams. There are very individual recommendations for exercise, activity and nutrition. Here are simply built modelsthat are easy to understand for laymen.

5. How does an Activity Tracker count its own steps?

The device has an integrated sensor and records all activity moments, including the number of steps that are then analyzed by heart rate measurement.

The method is called photoplethysmography and allows an optical measurement of all changes in blood volume in the vessels. Each cardiac cycle changes the amount of blood and the flow behavior, whereby the data can be recorded and measured. Furthermore, a gyroscope sensor and various motion and acceleration sensors are installed. They determine the linear motion and acceleration on three levels, while the gyroscope sensor detects all rotational movements. This is done in an analogous way. So that the values also make sense in a three-dimensional space, at least 3 sensors are necessary, which are perpendicular to each other and complement each other.

6. How does an Activity Tracker improve one's fitness?

The physical fitness can be very well integrated into the ordinary everyday life, eg. B. already when climbing stairs instead of driving a lift or covering a distance on foot instead of the car. The readable results of one's own performance or activity via the activity tracker increase the desire to increase the goal the next day. Sharing in social networks and fitness communities also strengthens the feeling of staying on the ball.

It is helpful that the goal is never set too high at first, but to approach the overall goal with small steps. Especially amateur athletes, who do not need too accurate readings, are well advised with the Activity Tracker and can thus control their progress.

Of course, an Activity Tracker can not replace a good coach, but it can be helpful to set up a well-balanced training and nutrition program.

7. How big should the display be with an activity tracker?

Since most data can only be read in the app or on the PC and can be surveyed more accurately, the display is rather incidental, so it must not be too large to increase the comfort . Good are models that resemble a clock and display only the most important data on the screen . On the other hand, there are also models with color display and backlight or Activity Tracker, which have no display at all. Crucial is the processor performance of the models, less the size of the display.

8. How does sleep monitoring work with an Activity Tracker?

The activity tracker is able to capture and analyze the nocturnal movements. This results in a scale of all phases of light and deep sleep. It becomes visible when sleep is very restless. The activity tracker uses a corresponding multi-sensor technology for sleep analysis . Decisive for the sleep detection, however, is the wearing of the device, which is most convenient around the arm. This allows the easy, deep sleep phase and the REM sleep to be recorded. The latter is crucial for the recovery of the body.

9. How is an Activity Tracker properly maintained and cleaned?

Since Activity Tracker are partly used permanently, the wearing comfort should be high and the materials should be kind to the skin. This includes more frequent care and care to keep the activity tracker's bracelet clean. Since it is worn in direct skin contact and so z. As the measurement of heart rate allows sweat and dirt can occur and provide fertile soil for bacteria and fungi.

Should be traded before, to avoid skin irritation. Outstanding in the test are models with skin-friendly elastomer or silicone wristband. In contrast, bracelets made of leather or metal are unsuitable. It must be remembered that fitness trackers are also often used during exercise and should not be wet. Water-repellent bracelets are advantageous in comparison.

The cleaning should therefore be carried out regularly, the bracelet for it to be removed and cleaned with a soft cloth and a little clear water .

Soap or more aggressive cleaning products are not recommended and can attack the material. For stubborn protection, some rubbing alcohol may be used. Also important is the adequate drying of the bracelet. The Activity Tracker should also be used on dry skin. Anyone who previously creamed his arm or uses oils must wait until they are completely absorbed before the Activity Tracker is put back on. The bracelet should be loose and comfortable, not too tight to ensure comfort.

10. What must an Activity Tracker have as standard functions?

The default features depend on how you use the Activity Tracker . For people who want to get a bit more exercise in everyday life , a simple model that counts steps and calories is all that is needed . Athletes, on the other hand, also need the pulse measurement to be able to evaluate the training data more accurately. Recommended models are always those that are easy to survey and operate, capture the essentials and allow a daily measurement.

To increase performance, an activity tracker isneeded that measures the total vital signs, the fat and muscle percentage, measures the maximum pulse and has a large range of functions . Standard features are usually the count of steps , the distance covered or floors, the calories burned and an activity reminder. All trackers must be connected to a smartphone or PC to ensure comprehensive analysis and analysis of the data .

The data that appears on the display itself is for direct control only, and will not be used in conjunction with the diagram representation in the app or in the software suitable reference points to improve your own fitness or control of the activity to capture.

Alternatives to the Activity Tracker

Fitness and activity trackers allow almost accurate measurements, but are limited in features in terms of performance when it comes to competitive sports. Nevertheless, already models with pulse and heart rate measurement are well suited to implement the training plan.

More elaborate devices recognize the type of movement in the activity pattern and record activity and duration reliably and automatically. Alternatively, specific to  heart rate monitor   or  heart rate monitors  allow a more accurate measurement. This particularly concerns the measurement of heart rate, and such models are often worn with a chest strap . Even better are  sports watches   or  combined devices that measure and analyze fat and muscle levels in the body via distance, step, calorie and heart rate measurement.

These have a special contact surface on the tracker that needs to be touched while the measurement is made via bioelectrical impedance analysis, as is known from body fat scales . More specifically, the measurement is determined by the current flowing through the body and the different resistances. As a result, the body condition and the summary can be detected accurately.

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