Smart Ring With Charging Case for Men Women,

Brand Name: COLMI
Model Number: COLMI R02
Certification: ce
Certification: FCC
High-concerned chemical: None
Activity Tracked: Activity Tracker
Activity Tracked: Steps Tracker
Activity Tracked: Distance Tracker
Activity Tracked: Calorie Tracker
Waterproof Grade: 5ATM
Case Material: Steel
Item Weight: 4.4g
Battery Capacity(mAh): 17mAh
NFC Support: No
Origin: Mainland China
Metrics measured: Heart Rate Monitor
Metrics measured: Sleep Monitor
Metrics measured: Blood Oxygen Monitor
Metrics measured: Stress Monitor
Display screen: No
Choice: yes