Here is the link of how to use the Blood Pressure:https://www.youtube.com/watch?v=FGZFKbhINdw Note: 1. Wearable devices monitors human activities through electronic sensors, and they are at the consumer electronics level. It's normal for certain deviation. The user should treat the data objectively. 2. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Appearance size: 433711mm Color: black/silver/pink Bluetooth: BLE/4.0 Waterproof level: IP68 Main control chip: MT2502D Storage: Built-in RAM 32Mb + ROM 32Mb Operation mode: 2.5D arc surface capacitive + function button Display: Type: 1.54 inch Resolution: 240*240 pixels Battery Type: Built-in lithium battery (200 mA) Charging method: magnetic charging Charging time is about 1.5 hours Standby time: 2-7 days Material: Zinc alloy case + IMIL back cover + liquid silicone strap Product Features: Main function: Call function: Bluetooth dialing, frequent contact list, call history, incoming call answering/rejecting Exercise monitoring: pedometer (exercise time, mileage, calories), exercise mode (walking, running, cycling, climbing) Health monitoring: heart rate / blood pressure / blood oxygen / ECG / body temperature measurement, sedentary reminder, sleep monitoring Smart reminder: caller ID/reminder, information push (SMS/QQ/WeChat/Skype/Facebook/Twitter/Line/WhatsApp) Other functions: Turn the wrist to bright the screen, customize the brightness, silent mode, anti-lost, shake and take photos, music control, stopwatch, alarm clock, calendar, calculator Wristband UI language: English, French, German, Spanish, Portuguese, Italian, Russian, Polish Turkish, Arabic, Hebrew, Thai APP supported languages: English, French, German, Spanish, Portuguese, Italian, Russian, Polish, Turkish, Arabic, Thai, Hebrew, Japanese, Simplified Chinese Support mobile phone system: iOS10.0 or above (Apple 5S or above); Android 4.4 or above APP/APK download: Android and Apple app synchronization APP: RDfit (Download for IOS system in APP Store, for Android system, open and scan the QR code on the manual to download and use) Package Includes: 1 Piece Smart Watch 1 Piece USB cable 1 Piece Manual
