SleepHQ O2 Sleep Tracking Ring ProTrack Your Sleep Like Never Before! The SleepHQ O2 Ring Pro takes monitoring your health to the next level, giving you real time insights into your blood oxygen levels, pulse rate, and movement throughout the night. Its ergonomic design ensures a secure and comfortable fit while you sleep. With 24 hour battery life and fast USB C charging, its as practical as it is powerful. The ring records up to 36,000 data points per session, helping you stay