Parameters Display: 1.52-inch HD Touch TP: Full-screen touchscreen Battery: 200 mAh Battery life: 3-7 days Standby time: About 30 days Bluetooth: BLE5.2 Style switch: 3 Waterproof level: 3 ATM System support: Android 5.0 and above, iOS 9.0 and above Functional Heart rate monitor, Bluetooth call, true blood saturation, blood pressure monitoring, sleep monitoring, SOS, frequency adjustment, voice assistant, information push, bedside light, calendar, app message reminder, multiple basic modes, physical games, calculator, variable dial, customized dial, reminder, mode reminder, recognition, recognition, non-disconnection recognition, bracelet, recognition, recognition, remote camera, recognition, backlight, recognition, recognition, recognition, recognition. Language English, Simplified Chinese, Russian, French, German, Portuguese, Spanish, Turkish, Polish, Malay, Czech, Slovak, Arabic, Thai, Italian, Indonesian, Persian, Vietnamese. Note: Waterproof: Waterproof, the watch can be used normally when washing hands and in the rain, but not for swimming and bathing. (Please be careful not to let corrosive liquids such as hand sanitizer and soap enter the watch, which will cause damage to the component.) Please charge your watch after receiving it. After long periods of transportation, the watch's battery may be low. Before use, scan the QR code in the instructions to download the app and connect it to your watch using the app.