Smart Ring Health Monitor Ring Size:13 Features an over-speeding alarm which

Features an over-speeding alarm which alerts you if you exceed the speed limit (can be switched off)

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A fantastic piece of surveillance equipment

With 4K super-resolution capabilities

Smart Ring Health Monitor Ring Size:13 Features an over-speeding alarm which39 day battery life charge once, forget forever! Tracks heart rate, blood oxygen & stress 24 7 Swim proof IP68 + 5ATM dive in fearlessly 100+ sport modes crush every workout Sleek titanium design looks insanely premium daily Sleep analysis so good youll wake up reborn Note: 1. For best performance and accuracy, we recommend wearing the COLMI Ring on your index finger. If you prefer other fingers, the middle and ring fingers are also OK. Avoid using