Features:High sensitive touched screen; can achieve various operations; information content; step; calories; distance; weather; heart rate and other functions to quickly view; thus opening intelligent life.Made of thermoplastic elastomer; it is more comfortable to wear.Recording hearrt rate is nice for knowing your health and exercise status; using reflection. Photoelectric signal detection principle records your heart rate; 24h continuous detection your heart rate.Automatically record the number of step; burn calories.You can choose the exercise program that suits your life rhythm; Nothing is more than sweating after exercise. Sweating can relax yourself; stick to exercise; and make yourself a nicer self.The bracelet automatically detects your sleep and generates a sleep report.When you forget the time; the bracelet will vibrate gently; remid you to get up and wake up.Specifications:- IP67 Waterproof- Charging voltage 5V Current 1A-2.1A Charging time 2 hours-- About standby time 3-5 days- All-day activity tracking: steps; calories burned; mileage; and heart rate.- 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 8.0 and above system.- APP support language: Russian; German; Italian; Japanese; French; Simplified Chinese; Traditional Chinese; Portuguese; Spanish; Arabic; KoreanPackage Included:

1 * Smart bracelet1 * User manual1 * Charge CableNote:

This is not Xiao Mi Band 4. 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.