Smart watch specifications: Model: E400 Battery: 280mAH Display: 1.39-inch 360 x 360 HD touch screen PPG sensor chip: SFH2201 ECG chip: TYHX3220 Heart rate: Green light PPG Waterproof: IP68 APP name: H Band Standby time: 30 days Daily battery life: 4-7 days Bluetooth: Bluetooth 5.1 (compatible with Android 5.0 and above, iOS 9.0 and above) Touch: Full touch screen (full lamination screen) Charging method: USB Magnetic 2-pin charging cable (with protective cover) Weight: 55g (including strap) Main functions: Health monitoring: sleep monitoring, heart rate, blood pressure, sedentary reminder, drinking water reminder, blood oxygen, body temperature. Sports mode: exercise steps, exercise mileage record, calorie consumption, multiple exercise modes. Exercise trajectory (displayed on mobile phone APP). Other functions: silent alarm, remote photography, music control, sedentary reminder, drinking water reminder, weather display, wrist light screen, call reminder, SMS reminder, countdown, shake to take pictures, mobile phone search, etc. Compatible system: Android 5.0 and above Apple iOS 9.0 and above Bluetooth 5.1 Language support: Watch language: Russian, Hungarian, Turkish, German, Italian, Czech, Slovak, Japanese, French, Polish, Persian, Simplified Chinese, Traditional Chinese, English, Portuguese, Spanish, Vietnamese, Arabic, Korean. APP language: Chinese, Korean, Japanese, English, German, French, Italian, Spanish, Portuguese (Portuguese), Russian, Hungarian, Turkish, Indonesian, Polish, Czech, Greek, Swedish. Package includes: 1 x Smart Watch 1 x Charging Cable 1 x User Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store