Biometric Monitors

Smart Ring, Heart Rate Monitor Sleep Fitness Ring Wireless Sports Health Tracker, Waterproof Body Temperature Pedometer Health Care Sports Ring with Charging Case for Men Women 【EXQUISITE AND LIGHTWEIGHT】: Made of premium aluminum alloy and ceramics, this ring is sturdy, durable, and beautiful and elegant. With a lightweight design and ultra light body, there is no sense of wearing the ring, and the lightweight wearing... Smart Ring, Heart Rate Monitor Sleep Fitness Ring Wireless Sports Health Tracker, Waterproof Body Temperature Pedometer Health Care Sports Ring with Charging Case for Men Women