Smart Ring with NO Subscription App Wearable Tech Rings for Men Women Fitness Step Tracker with Charging Case Health Rings for Heart Rate Sleep Monitor(Gold,22)

Special feature-Distance Tracker, Calori, Heart Rate Monitor
Battery cell composition-Polymer
Shape-Round
Brand-BiiKoon
【Heart Rate Monitor】Years of deep cultivation of smart wearable technology, smart ring with built-in the latest chip, using the latest instant capture technology to provide accurate vital signs data. Wear the smart ring on your hand, you can directly monitor your heart rate, etcand understand your physical health status at any time.【Sleep Analysis】Comprehensive understanding of sleep behavior and physical condition by analyzing sleep efficiency, latency, time, stage, movement and more. The sleep tracking feature makes it an ideal health companion. The ring can help you improve your sleep habits and achieve the ideal sleep state【Specification】Product Name: RO9M Smart RingProduct colour: gold/silver/inkProduct material: stainless steel shell + transparent epoxy resinProduct specification: 18/20/22mmProduct weight: about 5g (±1g)Battery capacity: 20mAhWaterproof rating: IP68Mobile APP: SmartHealth
【Size Before You Buy】Please according to the wearing instructions on the details page, first measure your finger circumference, then calculate the inner diameter of your finger, find the corresponding ring size number and select it.
【Fitness Companion】Intelligent ring support Multiple exercise modes + map track exercise, including walking, running, cycling, etc. after exercise to view APP exercise data, such as exercise time, exercise distance, heart rate changes, calories consumed, etc. a clearer understanding of the factors affecting health and exercise capacity.
【Long Battery Life】Smart ring use 20mAh capacity polymer battery, with a charging compartment full, can be regular use 3-7 days, greatly improving the battery life performance of the ring.
【size】#22 : inner diameter 21.3mm Circumference: 66.8mm; #20 : inner diameter 20.7mm Circumference: 65.0mm; #18 : inner diameter 17.8mm Circumference: 55.8mm