RingGo

RingGo® smart fitness tracker ring to record:

Sleep phases (light sleep, deep sleep, REM sleep)
heart rate
blood oxygen saturation
skin temperature
activity/steps
RingGo® features a range of advanced onboard sensors to monitor your vital signs.
RingGo® is equipped with 2 LEDs to measure heart rate and blood oxygen saturation and an integrated temperature sensor to read your body temperature. An accelerometer and gyroscope is used to measure steps throughout the day.
RingGo® connects to the RingGo® app via Bluetooth to view your health data.

RingGo® is not a medical device. Think of RingGo® as a smart watch meant to be worn on one finger for an unobtrusive fitness tracking experience. We strongly recommend that you seek medical advice in addition to using this app and before making any medical decisions.