1.19", Resolution: IPS 390x390, Bluetooth V5, Battery Capacity: 3.7V/200mAh polymer battery, Input Specifications: 5V/120mA, Charging Method: Magnetic charging cable, Charging Time: Approx. 2 hours, Standby Time: 30 days, Usage Time: 5–7 days, Internal Memory: Flash: RAM: 380KB ROM: 128MB, Features: Massive selection of watch faces, sports notifications, game notifications, photo uploads, step counting, heart rate, sleep tracking, sedentary reminders, distance tracking, blood oxygen, blood pressure, phone search, calorie tracking, Messages, WeChat, QQ, and other notifications; search function, alarm settings, water intake reminders, gesture control, Do Not Disturb mode, notification mode for calls, text messages, Facebook, Twitter, Instagram, Skype, WhatsApp, Line, KakaoTalk, Material and Construction: Main body zinc alloy, tempered glass; Silicone-textured leather strap