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Xiaomi Just Unveiled Its Latest Wearable: The Mi Band 2
The gadget includes an OLED display that shows the time, step count and heart rate and costs 149 RMB or $23.
The new Mi Band 2 improves on the last heart-rate tracker with an “upgraded pedometer algorithm” and a 20-day battery. The band is also water resistant. Optical heart rate sensors typically work by shining an LED light into the skin and measuring how the light is scattered by blood flow.
Xiaomi Just Unveiled Its Latest Wearable: The Mi Band 2
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