PAY ATTENTION:If you have any confusing problem of watch what you had received,Before return or leave complains, just simply contact me by E-mail.We frelop will do anything to ensure custome to be pleased.Include 100%money back and resend.</br>Heart Rate,Blood Pressure,Blood Oxygen,Fatigue,Sleep Quality,you could detect them by the Smart Heart Rate Monitor Bracelet.</br>Main functions:Heart Rate Monitor,Blood Oxygen Monitor,Ambulatory Blood Pressure Monitor,Fatigue Index,Sleep Management,Sports Pedometer,Calorie Consumption,Distance Calculation,Long Standby,Ultra Fast Charge,Calls to remind,SMS Reminder,Sedentary Reminder,Alarm Reminder,Life Waterproof,etc.</br>Detecting the dynamic heart rate,get the status of health anytime,we refuse to use the resting heart rate sensor,avoid the malaise due to high heart rate.</br>Bracelet will recognize and palming bright screen by built-in G-sensor,users could set this function by its Application.</br></br>Product Description</br></br><br>Product Features: <br> <br>Size: 23mm *62mm *13mm <br>Main Chip: nRF52832QFAA <br>Rom+Ram: 64K+512K <br>Sensor: LIS3DH PAH8001 three axis acceleration <br>Heart rate sensor: optical heart rate sensor <br>Screen: Cylindrical vibration motor <br>Bracelet key: Touch Key <br>Operation: Palming bright motor <br>Battery: 70mAh <br>Bluetooth: Support 4.0 or above <br> <br>Package Included <br>1 x Smart bracelet <br>1 x USB cable <br>1 x User manual</br><br/>http://www.amazon.com/gp/product/B01MDUDRBE