2.01" HD large screen, giving you a large and clear experience, more convenient to view data The built-in TWS headset design not only has an excellent waterproof, sweatproof and dustproof function BT call function, never miss any incoming calls, hands-free to communicate more freely Support NFC function, touch the access card simulation, lift the wrist to open the door Multiple detection functions, 24 hours scientific care for your health, with sleep monitoring, heart rate, blood pressure, weather forecast and other functions Support mountaineering, skiing, running and other sports mode, more real-time monitoring of sports Specification:   Weight 70g Appearance material alloy+PC Charging time 2-3 hour Life time 7-15 Day Waterproof Level IP67 Chipset JL7013 Compatible System Android5.0 UP  IOS9.0 UP FLASH memory 128MB screen size 2.01 Resolution 240*296 Control Mode Full touch screen (explosion-proof and scratch proof glass)+button+Encoder Connection parameter Bluetooth BT4.0/5.2 Sensor Heart Rate HX3605 G-Sensor DA267-LGA12 Headset headset battery 3.7V/30mAh play time 4.5hour Control Mode touch Battery Charge Mode USB cable Charging Battery Capacity 3.8V/345mAh Language APP Language Arabic, Bulgarian, Czech, Danish, German, Spanish, Finnish, French, Hindi, Croatian, Indonesian, Italian,  Japanese, Korean,  Norwegian, Dutch,  Polish,  Pashto,  Portuguese, Romanian, Russian, Swedish, Thai, Turkish, Ukrainian, Vietnamese, Chinese, English, Traditional Chinese Watch Language Watch (default 13 languages): Chinese, Traditional Chinese, English, German, Korean, Spanish, Japanese, French, Russian, Arabic, Ukrainian, Italy, Portugal