Health monitoring at your fingertips This unisex smart ring is an all-in-one tracker that measures heart rate, blood oxygen levels, activity, and sleep patterns right from your finger in a compact form. All-day activity tracking Keep you motivated with steps, distance, calories burned, and more as you go about your day. Long battery life on a single charge Up to 5–7 days of use from a 2-hour charge thanks to efficient battery management and an 18 mAh battery. Measure your size for all-day comfort Choose the perfect fit from US ring sizes 7 through 12 for a comfortable, secure wear. Use scenarios - During workouts or cardio sessions, monitor heart rate and overall activity. - Throughout the day, track steps, distance, and calories to support daily goals. - At night, review sleep patterns to understand rest quality and recovery.