Aichiken
Aichiken Smart Health Ring for Women Men Fitness Tracker with Heart Rate, Blood Oxygen,Sleep Monitoring, Step Counting, IP68 Waterproof for iPhone and
[SMART RING] The Aichiken smart ring not only monitors heart rate, blood oxygen saturation, but also records steps, distance and calorie consumption. It has a variety of exercise modes, including indoor and outdoor running, walking, and cycling, and comprehensively evaluates activity duration, benef...
$69.99