LARGE SCREEN EXQUISITE CRAFT: Borderless design,1.7inch TFT 240*280 with 2.5D curved HD display, bring you wider vision.
IP67 WATERPROOF: Free worry about water and swear with P67 waterproof level.
24 HOURS REAL-TIME HEART RATE MONITOR: Built in optical heart rate sensor combines intelligent algorithm, it pays attention on your heart health all day; it monitors your HR no matter RHR or exercise heart rate accurately.
28 SPORT MODES ACCOMPANY YOU ACROSS THE MOUNTAIN AND THE SEA: Enter into exercise, there are 28 kinds sport modes. No matter in-door or out-door, it accompany you to do exercise together.
LONG-LASTING BATTERY LIFE: Internal 235mAH battery, with Bluetooth calling working time up to 3 days; standby time 10 days.
Product parameters Bracelet size(mm): L*W*H=43.5*36*11.0 weight: 51g Major function: Bluetooth call, 1.7-inch large screen display, full-screen touch, vector font, heart rate measurement, exercise record (step counting, distance, calorie calculation), exercise mode, message push, information storage, sleep monitoring, stopwatch, camera control, music playback. APP: Da Fit Compatible system: Android4.4 (contain), IOS8.0 （contain) above FLASH memory: RAM192KB ROM64Mb Type: TFT screen size: 1.7 inches Pixels: 40RGB*280 Touch type: Full screen touch BT: 5.1 Bluetooth Low Energy Chip Waterproof Level: IP67 Charging time: About 2.5H Life time: 2-3 days of use, 7 days of standby Wristband size: Total length 255MM, adjustable length 155-235MM