R13 Men's Smart Wrist Watch Sports Bracelet Fitness Tracker with Heart Rate Monitoring - Green Headphones Brand Elecfreaks Model NFC RFID

Brand Elecfreaks Model NFC RFID Starter Kit Quantity 1 Color White + black Material FR4 Features RFID/NFC technology is regulated by Near Field Communication Forum which standardizes NFC communication between devices -- how they pair

XS: 28*38CM

CDMA PCS Network Details Others

Unit Battery Measured Capacity 330 DX

Connect the computer to charge and connect to the computer using USB

R13 Men's Smart Wrist Watch Sports Bracelet Fitness Tracker with Heart Rate Monitoring - Green Headphones Brand Elecfreaks Model NFC RFID2. 5D Tempered Glass Lens Case with Metal Case IP67 Waterproof OLED Color Screen Multi sports Mode Heart Rate Monitor Blood Pressure Test Incoming Call Notification Various message push and content display WeChat motion access Remote camera Low power standby 2. 5D Tempered Waterproof level IP67 System Requirements Android 4. 4 and above, IOS 8. 0 and above, Bluetooth 4. 0 and above hardware versions Language language Full font function (Bracelet can