COLMI R02 Smart Ring Military Grade Titanium Steel Shell Health Monitoring IP68

Brand Name: COLMIModel Number: COLMI R02Certification: ceOrigin: Mainland ChinaHigh-concerned chemical: NoneActivity Tracked: Activity TrackerActivity Tracked: Steps TrackerActivity Tracked: Distance TrackerActivity Tracked: Calorie TrackerWaterproof Grade: 3ATMCase Material: SteelItem Weight: 4.7gNFC Support: NoMetrics measured: Heart Rate MonitorMetrics measured: Sleep MonitorMetrics measured: Blood Oxygen MonitorMetrics measured: Stress MonitorBattery Capacity(mAh): 17mAhDisplay screen: NoChoice: yes