Mi Smart Band 4 Step up, live more Full colour display and heart rate monitor Full colour AMOLED touch display View call, text, and app notifications Activity and swim tracking Water resistant up to 50m*пј› 3-axis accelerometer, 3-axis gyroscope Up to 20 days battery* A single charge lasts up to 20 days. Health monitoring 24/7 heart rate monitoring and sleep tracking.
Xiaomi Mi Band 4 AMOLED Color Screen Wristband BT5.0 Fitness Tracker Smart Wristbands (Black)
$45.00
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Does this track REM sleep?Back to product
asked by on 2020-11-26 00:00:00
1 answers shown
- It tracks light sleep and deep sleep. I use the Notify App and it has a more robust sleep tracking software than the Mi Band app.answered on 2020-11-26 00:00:00
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