Description: 100% new label and high quality; Operation mode: touch operation Power on: long press function key - Main control chip RLC8762, IP67 Waterproof - Charging voltage 5V Current 1A-2.1A Charging time 2 hours- - About Battery life "2-3 days of use, 5-7 days of standby (the specific time depends on the frequency of use and frequency of push content)" - All-day activity tracking: steps, calories burned, mileage, and heart rate.blood pressure, multi-sport mode - Smart reminder:call reminder, messaging push, sedentary reminder. - More features: phone search, remote camera shoot, stop watch. - Continuous heart rate monitor:Continuous, automatic heart rate tracking right on your wrist per second. - 0.96" TFT color touch screen:HD screen, easy to read all fitness data. - Customizable clock faces - Bluetooth 4.0, compatible with Android 4.4 and above system, ios 8.2 and above system. - Bracelet push support language: Nearly 200 national languages worldwide, pushing for global fonts - APP support language: Russian, German, Italian, Japanese, French, Simplified Chinese, Traditional Chinese, Portuguese, Spanish, Arabic, Korean Package Included: 1 * Smart bracelet 1 * User manual Note: This is not Xiao Mi Band 3. Smart wristband is not for medical use, please don't buy for check the health(heart problem, blood pressure problem) it's not for professional use.Just can be a reference.