Smart Ring Health Tracker Blood Oxygen Heart Rate Monitor 10 D 20mm C-62.8mm

This smart ring is an activity tracker that monitors your heart rate, sleep, blood oxygen, and calories. It is water-resistant and has GPS sensors. The ring is made of stainless steel and nanocrystalline ceramics, and is designed to fit sizes ranging from 10 D 20mm C-62.8mm. The ring is black in color and has Bluetooth capabilities, making it easy to sync your data with your phone. In addition to its health and fitness tracking features, this ring also serves as a sleep tracker and has a heart rate monitor. It is suitable for both men and women, and is a great accessory for those who enjoy running and jogging. The ring is the perfect addition to your fitness technology collection, providing you with accurate and reliable data to help you achieve your health goals.