Why does the green light flicker even when the Xiaomi Smart Band 9 Pro is not being worn?
If the green light on your Xiaomi Smart Band 9 Pro is flickering even when the band is not being worn, it’s due to the optical heart rate sensor (the green LED light) trying to detect your heart rate.
If the green light flickers intermittently for 10-30 seconds, it is because the band uses infrared and green light for wear detection. Compared to traditional wear detection, this provides much higher accuracy and precision. Therefore, even when not worn, there will be brief green light flickering.
If the green light continues to flash, check whether you have activated sports mode. In this mode, the green light stays on to ensure fast heart rate measurement.
If the green light flickers intermittently for 10-30 seconds, it is because the band uses infrared and green light for wear detection. Compared to traditional wear detection, this provides much higher accuracy and precision. Therefore, even when not worn, there will be brief green light flickering.
If the green light continues to flash, check whether you have activated sports mode. In this mode, the green light stays on to ensure fast heart rate measurement.
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