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Apple Watch Series 8 (GPS 45mm) The king of the smartwatch game is also a worthy sleep tracker. With the latest 8th generation watch, you can use the built-in sleep app to track the total time of ...
This hybrid smartwatch does the basics like tracking steps and heart rate, but goes a step further with advanced features like ECG readings, blood oxygen level monitoring, and sleep apnea detection.
A fitness tracker is worn on the body (or held, like an iPhone) to measure or estimate data points including step counts, calories burned, distance traveled, heart rate, sleep time or respiration.
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 Alta HR, a wearable device capable of monitoring a person's sleep. [1]Sleep tracking is the process of monitoring a person's sleep, most commonly through measuring inactivity and movement. [2]
However, their third-generation ring has shown significantly better accuracy in sleep tracking, making it one of the most accurate wearables. [ 40 ] [ 41 ] Oura's workout heart rate measurement during exercise does not (as of summer 2022 [update] ) match the measurement accuracy of wearable heart rate sensors like the Polar H10. [ 42 ]
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