H55Pro 1.4 inch TFT Screen Smart Bluetooth Watch, Support Sleep Monitor / Heart Rate Monitor / Blood Pressure Monitor, Style: Silicone Strap, Style: Silicone Strap(Green), Style: Silicone Strap(Dark Blue), Style: Silicone Strap(Pink)???????????????????...1. Battery capacity: 3. 7V 400mAh 2. With life waterproof function 3. Screen: 1. 4 inch TFT screen, 240*240 4. Support Android IOS system 5. The watch comes with languages: English, Portuguese, Spanish, Russian, German, French, Arabic, Thai 6. Function: Call reminder push, SMS reminder push, WeChat reminder push, QQ reminder push, exercise record (step counting, mileage, etc.), sleep monitoring, heart rate detection, blood pressure detection, exercise