Wellue Wrist Wearable Sleep Monitor with App

Here is a smart wearable device that combines with your phone to track your sleep. The Wellue Wrist Wearable Sleep Monitor tracks your overnight O2 saturation level and heart rate. It works with O2 Insight Pro software to let you keep an eye on your stats. It also has an adjustable vibration alert and audio reminder.

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This wearable device comes with a silicone ring sensor that doesn’t make your finger numb. It lasts up to 72 hours on battery. You can find out more about it here.

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