SleepO2 Wrist Recording Pulse Oximeter by EMAY

Most lightweighted wrist pulse oximeter in the market, it weighs only 20 gram that one can sleep with comfortably. Patented silicone soft probe to wear comfortably, never slip off your finger., Record your blood oxygen saturation (SpO2) & heart rate every second continuously and accurately throughout the night., Stand-alone wrist pulse oximeter with built-in recording feature. Just wear it to record overnight, and take it off to sync with app in the morning., Intelligent app allows you to review data second by second, and generate a professional sleep report with valuable data including ODI4% and trend graphs., Rechargeable lithium battery, 12 hours' battery life. The device is for sports/wellness reference use only, not for medical or diagnostic purpose.