Smart Ring for Men & Women, Fitness Tracker, Sleep, Heart Rate, SpO2 | No subscription app, iOS & Android compatible, IP68 waterproof, sleep and naps, activity, women's health, family care

IMPORTANT SIZE NOTE: Smart rings may feel more snug than regular jewelry rings. Please measure with the provided size guide before purchase; if between two sizes, select the larger size. SMART RING FOR MEN & WOMEN: A lightweight fitness tracker ring for everyday wellness, with a no-subscription app for iOS and Android, plus sleep, activity, heart rate, SpO2, HRV, and stress insights. NIGHT SLEEP & DAYTIME NAP TRACKING: Track both nighttime sleep and daytime naps, including sleep duration and rest trends, to better understand your daily recovery routine. HEART RATE, BLOOD OXYGEN, HRV & STRESS: View heart rate, blood oxygen, HRV, and stress trends in the app for simple wellness insights during rest, workouts, and daily life. DAILY FITNESS & ACTIVITY TRACKING: Supports everyday workouts like running, cycling, walking, yoga, mountaineering, golf, dancing, and rope skipping, plus steps, calories, and movement trends. IP68 WATERPROOF FOR REAL LIFE: Designed for hand washing, showering, washing dishes, sweaty workouts, and everyday wear, so your smart health ring fits naturally into busy routines. WOMENS HEALTH, FAMILY CARE & GIFT READY