Use our sizing guide: Size 7 = 2.12", Size 8 = 2.2", Size 9 = 2.28", Size 10 = 2.44". A snug but comfortable fit ensures accurate sensor readings and all-day wearability. ALL-DAY HEALTH MONITORING - The smart ring tracks health metrics, heart rate, stress trends, activity, sleep, and women's wellness indicators (period & ovulation predictions). Heart rate sampling interval is customizable (every 5/10/15/20/25/30/60 min); the default 30-minute mode delivers optimal battery accuracy. Measurements are for wellness reference, not medical diagnosis. SLEEP STAGES & NAP DETECTION - From bedtime to afternoon naps, the ring captures deep sleep, light sleep, REM-like stages, and awake periods. View nightly data and weekly trends in the Da Rings app to build healthier sleep habits. 100+ WORKOUT MODES & FULL ACTIVITY DATA - Track running, cycling, walking, climbing, swimming, hiking, yoga, and more. The smart ring logs distance, duration, calories burned, heart rate, steps, and pace. Whether at the gym or on the trail, the Da Rings app keeps a complete record.
NO SUBSCRIPTION ALL FEATURES UNLOCKED - Zero monthly fees, zero hidden costs. The Da Rings app and all core tracking functions are free with your ring purchase. Unbox, pair, and start your wellness journey immediately


