Smart Ring for for measuring Heart Rate, Blood, Oxygen, Sleep, HRV, Stress Test Intelligent Finger Ring

This shows you when stress is silently draining your energy - so you can recover before burnout hits

YOU CANNOT MANAGE STRESS THAT YOU CANNOT SEE!

Color: Black ,Silver ,Gold

Battery Capacity: 16mAh

Appearance Size: Size 7, Size 8, Size 9, Size 10, Size 11, Size 12, Size 13

Product Weight: 3.2g

Applicable Population: Elderly, Teenagers, Men, Women

Wearing Method: Ring

Applicable System: iOS, Android

After-sales Service: Store Three Guarantees

Packaging List: Ring, Manual, Charger, Packaging Box