C20 PRO Smart Watch 1.83inch Bluetooth Call Information Push Outdoor Sports Fitness Tracker Heart Rate Blood Pressure Smartwatch Memory: 128Mb Touch screen: capacitive touch TP, Haibiao Chuang816D Screen: 1.83 inch 240 * 286 resolution high-definition square screen Connection: Bluetooth 5.0 Heart rate: HR3605 Step counting: Sand Rui QMA6100P, precise step counting Charging method: 2PIN magnetic suction cable Battery: Capacity 380mAH (polymer pure diamond battery) Waterproof grade: IP68 Machine size: 54 * 43 * 12.9mm Watch color: black/orange Net weight (watch): 52.7g (including strap) Specifications: 1 [Long Range] 380MAH large battery with ultra long range, reducing the hassle of charging at any time 2 [One click Bluetooth connection ] Suitable for wearing in more environments 3 [Large memory ] Supports 10 built-in dials 1 custom dials 1 server internal dials 4 [ 1.83-inch high-definition colorful large screen ] 1.83-inch high-definition retina screen, with clear and smooth graphics 5 [Dynamic mountain rate blood oxygen] Self potential and efficacy analysis, HR3605 low-power high-definition heart rate blood oxygen detection is more accurate Package Included: 1 * Watch 1 * Charging cable 1 * Instructions