This Wrist Wearable Sleep Monitor offers sleep tracking as standard, measuring my heart rate at night to show how long I spent in each stage of sleep (deep, REM, and light) plus any periods awake. It can also monitor blood oxygen saturation (SpO2), which can reveal whether I might be suffering from breathing disturbances that are interrupting my sleep and leaving me feeling groggy in the morning. It also alerts whenever the wearer’s blood O2 saturation drops to the defined level.
Moreover, this tracker connects to a mobile app to present graphs or visual displays of collected nighttime data, so I can review disturbances and get actionable advice for improving sleep the next morning. The app is user-friendly and easy to use.
This wearable sleep tracker boasts long battery lives, lasting several days. This way, I can take it with me on long trips, forget my charger, and not be out of luck. However, I will need to take it off periodically in order to let it charge. Most people do this while they shower or get ready in the morning. I feel like such devices that use fingers to measure the oxygen are more accurate and dependable.