Opta SB-063 Heart Rate Monitor Black Smartwatch(Black Strap Free Size)

"highly sealed.IP68 real waterproof,could support wear when swimming,from apltch only(dear people, we suggest that you fully dry it after taking it out of water for charging protection and frequently using it or long time in water may influence its working life which is out of our warranty, thanks for your understanding) note: blood pressure data is only for reference(might not be 100% accurate), not suitable for medical purpose.heart rate monitor uses the brand new dynamic algorithm to monitor the heart rate, which is more accurate and more reliable than other smart bands as most of other smart bands in the market are only with static algorithms.Germany Dial log DA14585 display:0.66" OLED Resolution 64 * 48 screen operation: curved monitor sensor: three-axis gravity acceleration sensor acceleration bluetooth: compatible bluetooth 4.0 (android and ios)ble contact type:contact charging battery :120 mAh polymer battery standby time:3-5 days compatibility:android 4.4 or above;ios 8.0 and above watch strap material:Steel adjustable band length: 256mm, * weight:19.8 gram * 67mm waterproof level: IP68 waterproof functions: incoming call reminder, SMS reminder, app notifications reminder, alarm clock, sleep detection, health and fitness tracker, step count, simulation blood pressure monitor:yes heart rate monitor:yes fatigue value monitoring:yes pedometer,step calorie tracker,sedentary reminder:yes others tools:alarm clock,Remote Control Camera language :English package list: 1*smart band 1*gift box 1*charger 1*user manual