SMART RING FOR WOMEN MEN, FITNESS RING WITHOUT SUBSCRIPTION, SILVER,8

Size Before You Buy AutrefoisElf smart ring for women and men utilizes a unique sizing system. Available in Size 6-14, we strongly suggest referring to our size chart and measuring your finger circumference carefully. Using the sizing kit before purchase ensures the comfortable wearing experience and optimal sensor performance. 24/7 Health Monitoring y No Subscription Gain deep insights into your body with 24/7 heart rate, HRV, sleep, stress levels and oxygen saturation. This fitness tracker helps you understand your physical trends without any subscription fees. 30-Day Power y Dual Charging Features an ultra-thin 5mm design with a revolutionary dual-charging system. Use the dedicated data cable for a direct charge, or use the portable charging case for up to 30 days of total battery life. A quick 1-hour charge supports 3-5 days of regular use, ensuring you stay powered anywhere. 140 Sport Modes y 50M Water Resistant Whether you are swimming, showering, or hitting the gym, the 50M waterproof rating has you covered. The fitness ring tracks 140 activities with precision, capturing every step and calorie burned to help you reach your fitness goals. Sleep Tracking y Smart Versatility With a 5mm thin and lightweight build, this smart ring tracks deep, light, REM sleep stages and calculates sleep quality scores. Compatible with Android and iOS, it provides female cycle tracking and a shake-to-capture remote camera function.