* ID107 adopt green LED lights (OSRAM lights) and sensitive
<br />photo-diode to monitor the flow of blood through user's wrist every single moment.
<br />When user's heart beats, there will be more blood run through user's wrist, the green light absorption will increase.
<br />Under the interval of heart beats, less blood run through user's wrist, thus the green light absorption decrease.
<br />DO Researching and Developing Team have effective monitored and extracted heart rate signal based on developed
<br />a set of complicated and explicit algorithm
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<br />* DO formula for maximum heart rate calculate: 220 - age
<br />below 50% of the maximum heart rate, it will not defined as sports exercise
<br />up to 50% - 69% of the maximum heart rate, defined as low-moderate sports fat burning zone, fit for exercise beginner
<br />up to 70% - 84% of the maximum heart rate, last long time under aerobic exercise, it improves heart and lung function, also enhance blood vessel function.
<br />Higher than 85% of the maximum heart rate, is extreme high level exercise zone
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<br />* Track daily activities data such as,steps, distance, calories burnt, help you reach daily fitness goal
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<br />* Sleep + Clock
<br />Auto recognize sleep status, track your sleep hour and sleep quality, wake you up by smart alarm.
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<br />* Unique designed transportation mode
<br />Once final product under mass production testing done before shipment.The test App will send a command,   or long press the key enter into transportation mode. The data in the device will be cleared once under transportation mode   and the wristband is under power off status. The device can be activated by charging or pressing the key.
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<br />* APP: VF 2.0
<br />Convenient Bluetooth connection Blutooth 4.0 connection Super low power consumption Radiationless