lassic Look with Powerful Features With its fashion and active design the AMAZFIT GTS will fit any occasion and outfit whether at work in daily-life or doing sports It offers an outstanding 1.65-inch 341 PPI AMOLED display with customizable widgets and a durable metallic design with 5 ATM water resistance still keeping a lightweight and slim body and making it comfortable to wear while monitoring your sleep at night It supports 12 different sports modes to track your workouts Equipped with a built-in GPS to track your routes High-precision Huami Biotracker™ optical heart rate sensor to deliver accurate health date. It offering a long-lasting 14 days battery life. Fashion Look  ● Slim metal body design giving it a metallic texture. ● Built-in 3 watch faces and download over 100 watch faces from store to fit any occasion and outfit. ● DIY your watch face with customizable widgets to quick access to the most used features. High-Level Configuration ● Large 1.65 inch 341 PPI (348 x 442) AMOLED display for outstanding and more comfortable viewing experience. ● 5 ATM water-resistance to ensure a normal use up to 50 meters water depth. ● 14 days battery life to fit for long trip and outdoor sports. ● 28nm ultra low power consumption Sony GPS chip consuming only 1/3 power compared to similar GPS chips. Best Sports Companion ● 12 sports modes: outdoor running treadmill walking outdoor/indoor cycling, elliptical trainer pool/open water swimming, mountaineering, trail running, skiing and exercising. ● Built-in GPS + GLONASS reaches more satellites more accurately, to precisely track your routes. (except Lite edition). ● Activity tracking with distance, active hours, calories and steps. Health Assistant ● Innovative BioTrackerTM PPG sensor developed by Huami technology to accurately monitor your heart rate. ● 24 hours continuous monitoring + abnormal heart rate warning. ● Sleep monitoring to understand better your sleeping pattern. ● Sedentary reminders notify you when you have not been in active for too long. ● Weather forecast (5 to 7 Days) + temperature warnings. Specification Sensor: BioTracker™ PPG Optical Heart Rate sensor, 6-axis acceleration sensor, Geomagnetic sensor, Air Pressure sensor, Ambient Light sensor Charge and data transfer: 2Pin Pogo Pin, magnetic charger