Thinner and Lighter: Simpler one-piece body, ultra-light and convenient for daily wear 1.47" Large Screen: Bigger and clearer screen, view more details and get more done on your wrist 100+ Sports Modes: The GTL2 Smart Fitness Tracker supports more than 100 sports modes, such as running, skipping, and cycling, providing a comprehensive fitness experience Your Reliable Health Companion: The GTL2 Smart Fitness Tracker features a dual-color, three-channel PPG bio-tracking sensor. The improved sensor layout also helps enhance the data accuracy and collection Specifications: Material Body material Plastic Case material Plastic Strap material Silicone Screen Screen type TFT Screen size 1.47 inches Screen resolution 172*320 Touch mode Full touch Battery Battery capacity 200mAh Battery life Light use 10 days, medium use 7 days, standby 45 days Charging time About 2 hours Hardware specifications Main control chip JL7012 Gravity sensor SC7A20 Heart rate sensor HX3918 Blood oxygen sensor HX3918 RAM 640KB FLASH 64M Motor Flat tungsten steel motor Button Virtual button Bluetooth BT5.3 Bluetooth-compatible distance 10 meters Charging method Magnetic charging Waterproof level IP68 Sport function Sports mode 100+ sports modes Calorie calculation Support Step counting Support Distance Support Sports record Support MET Support Health Features MAI health index Support Automatic measurement Support Heart rate monitoring Support Blood oxygen monitoring Support Blood pressure research Support Blood sugar research Support Sleep monitoring Support Stress monitoring Support Emotion monitoring Support One-click measurement Support Exercise heart rate Support Women's health Support Health reminder Support Communication function Bluetooth-compatible call Not Support Message notification Support Event reminder Support </