R02 Smart Ring Blood Oxygen Health Tracker Military Grade Titanium Smartring Heart Rate IP68 & 5ATM Waterproof Multi-sport Modes

Measure the size first – measure the size before buying. There are 4 sizes with inner diameters of 18.1mm~20.6mm. It is recommended to purchase based on the inner diameter of the thickest part of the knuckle. #8 (inner diameter 18.1mm) #9 (inner diameter 18.9mm) #10 (inner diameter 19.8mm) #11 (inner diameter 20.6mm)

Multifunctional smart ring – 24-hour health monitoring to protect your health. Wear it on your hand to directly monitor heart rate, blood oxygen, etc., and keep abreast of your physical health. It also has multi-dimensional health management functions such as sleep monitoring to comprehensively improve your health level. Durable, lighter than ordinary wedding rings, non-allergenic, and waterproof.

Heart rate monitoring – using advanced dynamic monitoring technology to accurately record your heart rate changes, allowing you to understand your health anytime, anywhere. App-initiated heart rate test/all-day dynamic heart rate trend and data analysis/heart rate data analysis/recent 7 heart rate measurement trends/heart rate history data, these functions always protect heart health.

Sleep data monitoring and blood oxygen monitoring-Sleep monitoring records the complete sleep structure, understands your sleep status, and the proportion of light sleep and deep sleep during the entire sleep period. Good sleep habits are the key to better health. Easily measure blood oxygen, blood oxygen saturation is one of the important indicators of heart health, and quickly detect blood oxygen in real time.

Exercise index-multiple exercise modes, including walking, running, cycling, etc. After exercise, view the application's exercise data, such as exercise time, distance, heart rate changes, calorie consumption, etc. By tracking heart rate during exercise, users can gain insight into their cardiovascular response, track intensity levels, and make informed decisions to improve their fitness results.