This smart wireless monitor has many functions to help you stay healthy. It will lift the lifestyle of  people with increased health risks caused by diabetes, excess weight, high blood pressure, heart strokes, etc.. It supports BT 4.0LE connection to show your health data on the phones, it is for Android 4.4 and above, for IOS 8.0 and above. So it fits most smartphones.
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<br />Note: Please read the user manual carefully before using it. 
<br />Functions:
<br />1. Time & Date Display
<br />2. Pedometer Mode
<br />3. Distance Mode
<br />4. Calories Mode
<br />5. Blood Pressure Monitor 
<br />6. Heart Rate Monitor
<br />7. Sleep Monitor
<br />8. Arrhythmia Alert (Vibration)
<br />9. Alarm Alert (Vibration)
<br />10. Incoming Calls and Messages Notifications (Vibration)
<br />11. Outsit Alert(Vibration)
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<br />Specifications:
<br />Material: TPU (Strap) + PC (Dial)
<br />CPU: Nordic Nrf51822
<br />Sensor: KXTJ2-1009 PD70-01C-TR7
<br />Display: 0.87  OLED screen
<br />Technology: BT BLE4.0
<br />Transmitting distance: 10m
<br />Battery: 70mAh Li-polymer
<br />Standby time: 5-8 days
<br />Charging time: About 1 hours
<br />Charging port: USB 
<br />Data storage: 3 days
<br />Item dimension: 230 * 18.8 * 10.8mm / 9.1 * 0.7 * 0.4in
<br />Item weight: 21g / 0.7oz
<br />Package size: 9 * 9 * 2cm / 3.5 * 3.5 * 0.8in 
<br />Package weight: 52g / 1.8oz
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<br />Package List:
<br />1 * Monitor
<br />1 * User Manual (Chinese and English)