NEW M4 Smart Band Heart Rate Preure Monitor Sport Watch for Men Women Monitor Health let Waterproof Fitne ckerFeatures: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, double-ed design, let you exercise without falling off. hearrt rate is nice for knowing your health and exercise status, using reflection. Photoelectric signal prince records your heart rate, 24h continuous your heart rate.Automatically record the number of step, calories.You can choose the exercise program that suits your life rhythm, Nothing is more than sweating after exercise. Sweating can relax yours, stick to exercise, and e yours a nicer s.The let automatically detects your sleep and generates a sleep report.When you forget the time, the let will e 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 cking: steps, calories ed, mileage, and heart rate.- Smart reminder:call reminder, me push, sedentary reminder.- More features: phone search, remote camera shoot, stop watch.- Continuous heart rate monitor:Continuous, automatic heart rate cking right on your wrist per second.- 0.96'' TFT color touch screen:HD screen, easy to read all fitne data.- Customizable clock faces- Bluetooth 4.0, compatible with Android 4.4 and above system, ios 8.0 and above system.- APP support language: Ruian, German, Italian, Japanese, French, Simplified Chinese, ditional Chinese, Portuguese, Spanish, Arabic, KoreanPackage Included:1 * Smart let1 * User manual1 * Charge CableNote: This is not Xiao Mi Band 4. Smart wristband is not for use, please don't buy for check the health(heart problem, preure problem) it's not for profeional use.Just can be a reference.