Function at a glance: The smart ring continually monitors heart rate, body temperature and blood oxygen, and detects sleep time and sleep status to show your overall health and sleep quality in real time. Sleep tracking: Automatically records your sleep, tracks total duration, and analyzes sleep quality to help you adjust habits for a healthier routine. Lightweight design: Ultralightweight and comfortable to wear all day, the ring stays unobtrusive so you can forget you're wearing it. Battery and charging: 18 mAh battery provides 3 to 7 days of use on a single charge. Magnetic charging makes topping up quick and easy. Use scenarios: Daily health monitoring during workouts or everyday activities to observe trends in heart rate and oxygen levels. Nightly sleep analysis to optimize bedtime routines and improve rest. Travel or busy days where long battery life reduces the need for frequent charging.