Free Shipping on all purchases. Your parcel will also be fully insured and trackable Main Features New F21 Smart Bracelet 1. Heart Rate Monitoring, Blood Pressure Monitoring, Sleep Monitoring, Sedentary Reminder, Always Pay Attention To Your Health, And Give Yourself And Your Family A Health Guarantee. 2. Support Female Physiological Period Function Reminder, Even If The Work Is Too Busy, You Are Not Afraid To Forget. 3. Pedometer,Step Traker, Distance, Calories, Stopwatch, Countdown, Call Reminder (Caller Number/Name), Message Reminder, Alarm Reminder, Anti-Lost Reminder, Sedentary Reminder, Remote Control Photo, Lift Wrist Bright Screen, Etc., Make Your Life Easier. 4. Ip68 Deep Waterproof, No Fear Of Sweat, Rain. It Makes You Feel At Ease When You Do Exercise. 5. Support Multi-Language, Bluetooth 4.0. Specification App Operating System: For Ios8.0 Or Above,For Android4.4 Or Higher Gsencor Sensor: Kxtj3-1057 Master: Nrf 52832 Heart Rate Sensor: Yiguang Pd70-01C-Tr7 Vibration Reminder: Motor Vibration Reminder Waterproof Rating: Ip68 Display: 1.14 135*240 Resolution Tft Bluetooth: Ble 4.0 Strap Material: Silicone Strap Host Size: About 47*24*13Mm/1.85*0.94*0.51Inch Machine Size: About 260*24*13Mm/10.24*0.94*0.51Inch Operation: Single Touch, Lift The Wrist Screen Will Bright. Battery: Polymer Lithium Ion Battery Battery Capacity: 180 Mah Standby Time: 7-10 Days Charging Method: Magnetic Charging Cable Charging Time: About 2 Hours Supported Languages: Chinese, English, German, Russian, Japanese, French, Korean, Portuguese, Spanish, Italian, Vietnamese. Package 1* Smart Bracelet 1* Charging Cable 1* Instruction Manual 1* Retail Box Note: If It Doesn’t Work After Receiving The Goods, Please Charge It First. This Bracelet Is Ip68 Waterproof, But Do Not Soak In Water Or Hot Water For A Long Time.