The Comparison of Wearable Fitness Devices

The wearable devices or wearable trackers help to motivate you during daily exercise or workouts. It gives you information about your daily routine or fitness by using wearable technology in combination with your smart phone to track your daily activities and fitness without the manual calculations or records that can be intrusive. Generally, companies display advertising for these kinds of products and depict them as good, user-friendly, and accurate. However, there are no subjective research results to prove the veracity of their words. Four popular wrist band-style wearable devices currently in the market were selected at the devices which are most popular (Withings Pulse, Misfit Shine, Jawbone Up24, and Fitbit Flex). The accuracy of tracking was one of the key components for fitness tracking, with some devices performing better than others. Accuracy in the tracking of daily activities such as walking, running, and sleeping is important. This research showed subjective and objective experiment results, which were used to compare the accuracy of four wearable devices in conjunction with user-friendliness. Satisfaction levels, the accuracy of tracking, and the opinion of each subject while using wearable device to track their daily activity were compared. The results determined that the cost-effectiveness was the Withings Pulse, followed by the Fitbit Flex, Jawbone Up24, and Misfit Shine

The characteristic comparison of the accelerometer and the gyroscope in the measurement of human body sway

This study investigated the human body sway measuring instruments. An accelerometer and a gyroscope were used to examine patients with postural control related diseases in many studies. Some studies used either an accelerometer or a gyroscope attached to the head, chest, or waist to obtain the balance assessment parameters of body sway such as area, direction, etc. The purpose of this study is to identify the reliability between both sensors in human body sway analysis by assuming the human body sway as a simple pendulum model, and suggest an optimal measurement method using the acceleration and the gyroscope. The characteristic differences between the accelerometer and the gyroscope were illustrated, focusing mainly on the differences with respect to the position of the sensors. We confirmed that the magnitude, instead of three axis vector information, may be more useful in the body sway analysis

A comparison of wearable fitness devices

Abstract Background Wearable trackers can help motivate you during workouts and provide information about your daily routine or fitness in combination with your smartphone without requiring potentially disruptive manual calculations or records. This paper summarizes and compares wearable fitness devices, also called “fitness trackers” or “activity trackers.” These devices are becoming increasingly popular in personal healthcare, motivating people to exercise more throughout the day without the need for lifestyle changes. The various choices in the market for wearable devices are also increasing, with customers searching for products that best suit their personal needs. Further, using a wearable device or fitness tracker can help people reach a fitness goal or finish line. Generally, companies display advertising for these kinds of products and depict them as beneficial, user friendly, and accurate. However, there are no objective research results to prove the veracity of their words. This research features subjective and objective experimental results, which reveal that some devices perform better than others. Methods The four most popular wristband style wearable devices currently on the market (Withings Pulse, Misfit Shine, Jawbone Up24, and Fitbit Flex) are selected and compared. The accuracy of fitness tracking is one of the key components for fitness tracking, and some devices perform better than others. This research shows subjective and objective experimental results that are used to compare the accuracy of four wearable devices in conjunction with user friendliness and satisfaction of 7 real users. In addition, this research matches the opinions between reviewers on an Internet site and those of subjects when using the device. Results Withings Pulse is the most friendly and satisfactory from the users’ viewpoint. It is the most accurate and repeatable for step and distance tracking, which is the most important measurement of fitness tracking, followed by Fitbit Flex, Jawbone Up24, and Misfit Shine. In contrast, Misfit Shine has the highest score for design and hardware, which is also appreciated by users. Conclusions From the results of experiments on four wearable devices, it is determined that the most acceptable in terms of price and satisfaction levels is the Withings Pulse, followed by the Fitbit Flex, Jawbone Up24, and Misfit Shine