Firstsing NRD51822 Smart Watch Heart Rate Blood Pressure Monitor Pedometer Color Screen Fitness Tracker Stainless Steel Watch band

Master chip:NRD51822
Screen:0.96" OLED
Battery:50MAH
Charge:Micro5PIN
Work time:5-7 Days
Stand-by time:7-15 Days
Color screen: Our smart fitness watch adopts 0.96-inch IPS color screen, which offers excellent HD image quality,2.5D ARC Tempered glass, round hand feeling, anti abrasion resistance Stainless steel watch band, provides you comfortable experience.
IP67 waterproof: Keeps rain and splash, but not showering or immersing. Please do not press any buttons underwater. Also avoid use in extremely hot or cold temperatures.
Multifunctions: Time display,Pedometer to display steps, calorie, distance,Blood oxygen detection ,Blood pressure detection,Heart rate detection,Alarm,Sleep monitoring.
Compatibility: Requires iOS 8.0 & Android 4.4 above.