Description: Large display: This smart watch is designed with a 1.78 inch and can show information more clearly and is beautiful. Multifunction: This smart wristwatch can measure and detect the slight changes, well knowing your heart rate. Waterproof: This smart watch features IP68 water resistant and is not easy to be damaged by rain water and sweat. Silicone strap: This intelligent watch has a skin-friendly bracelet and is comfortable and deliver a good touch feeling. Multiple sports modes: This smart watch is designed with 105 modes that can meet your different exercise and fitness needs. Specification: Size: Approx. 45.2x37.2x10.4mm/1.78x1.46x0.41 inch. Strap width: Approx. 20mm. Display: 1.78 inch AMOLED display. Resolution: 368x448. Bluetooth-compatible version: 5.1. Sensors: sensor, movement sensor, SpO2 sensor. Battery: 230mAh(Built-in). Supported devices: Replacement for Android 6.0, Replacement for iOs1.0 and above. Battery life: About 10 days(Turn on for 24 hours). Water-resistance grade: IP68. Operating temperature: 0℃~45℃. Workout modes: 105 modes. Note: There might be a bit of color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. Package Includes: 1 Piece Watch(with 1 Piece Charging Cable, 1 Piece User Manual).