Chipset: Nordic NRF52832 Memory: 512+64 KB, extend 64M Quality Standard: GB4943.1-2011;GB/T22450.1-2008 Waterproof Level: IP68 Watch Size Watch: 48*13.3mmï¼?with strap 253 mm Watch Weight: 52g Watch case: Zinc Alloy (Silver/ Black) + Enhanced Mineral Glass Watch Strap: Dual color edible silicone watch band & Stainless steel mesh band Charge Mode: 2 Pin magnetic type Color: Red/Green/Grey with silicone band & Black/Silver with Mesh band Screen: 1.3 inch TFTn240*240 full touchable round display Touch Screen: Spherical full touch screen, Anti-Fingerprints Bluetooth: push Incoming Call, WhatsApp, Facebook, WeChat, Email notifications Call Reminder: Display caller, Decline call Heart Rate Monitor: Support continuous heart rate test Pedometer: Steps, Calorie, Distance Sedentary Remind: Support Sleep Monitor: 21:00-9:00 auto turn on Bluetooth BT4.0 Battery: 380mAh Vibrator: Support Watch Languages: Chinese, English, Apps Languages: Simplified Chinese, Traditional Chinese, English, Other Function: Call & Message Notification