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It has a heart rate sensor as well as an oxygen saturation (SPO2) sensor - however, it shipped non-functional but Fitbit eventually enabled the feature. [36] Sleep tracking has been improved from the Charge 2. [37] In November 2018, a special edition of the Fitbit Charge 3 was released featuring "Fitbit Pay" as a special feature.
A 2019 study found that the Fitbit Charge 2 accurately measures the average heart rate of healthy adults during sleep, and that it is most accurate for medium range of heart rate. However, the same study found that Fitbit Charge 2 relative to EEG, overestimated sleep efficiency by about 4%, but there was no difference in measured total sleep time.
The Fitbit Charge 3 activity tracker. A fitness tracker or activity tracker is an electronic device or app that measures and collects data about an individual's movements and physical responses, towards the goal of monitoring and improving their health, fitness, or psychological wellness over time.
Fitbit is rolling out the latest version of its top-of-the-line fitness tracker: the Charge 6. Available Oct. 12 for $159, the Charge 6 comes with updated heart rate tracking that promises ...
Fitbit Charge 6 5% OFF The Fitbit Charge 6 can take your fitness game to the next level. It tracks your heart rate, sleep patterns and workouts with more than 40 exercise modes, and it has a built ...
A heart rate monitor (HRM) is a personal monitoring device that allows one to measure/display heart rate in real time or record the heart rate for later study. It is largely used to gather heart rate data while performing various types of physical exercise. Measuring electrical heart information is referred to as electrocardiography (ECG or EKG).
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