Key Features   . 1.39 DisplayUp to 16 day battery life or 50 hours with sports mode and GPS onTrack over 117 different sports24 hour heart rate monitoringOver 100 watch faces to choose fromBlood oxygen testing50m Water Resistant . 1.39-inch high resolution display . The all-day Always-On Display feature can display time even in direct sunlight. Clearly displays incoming calls notifications fitness and other important information. Slim and lightweightLight as a lipstick tube thanks to its brand-new tailored frame. Unleash your energy and make your workouts more enjoyable. Over 100 watch faces to choose fromTechnology sports mechanics cartoons. Choose any theme you like. Want more? Customize the watch face with your favorite picture and define your own style. 16-day ultra-long battery lifeGlobal upgrades of low-power AI algorithms extend the battery life of the watch. Charge instantly with the easy magnetic charging cable 16 Days. - Typical Usage Mode 22 Days. - Long Battery Mode 50 Hours. - Outdoor Sports Mode Accurately records your movementsThe built-in 12nm process high-end Airoha GPS chip supports synchronous positioning by the four major positioning systems GPS GLONASS Galileo and BDS. It works with customized mileage optimization algorithms to improve movements and mileage accuracy making your fitness data more precise. 117 workout modes for even more choicesSupports 17 professional workout modes including triathlons swimming and HIIT as well as 100 extended workout modes. The powerful Firstbeat algorithm can accurately monitor and analyze over 30 key data points like heart rate speed and calories burned making your workouts more efficient. Automatic workout detectionIt automatically detects and monitors when you start workout. It also pauses and goes when you do ensuring that all your movements are recorded. Or simply tap the SPORT button to start your favorite workout..