Press the side power button once to light up the display.
There are several reasons why you may need to hard reset your Redmi Watch 3 Exclusive: how to hard reset redmi watch 3 exclusive
If your watch is completely frozen and won't respond to taps, a force reboot may be necessary before you can attempt a reset. Force Reboot : Press and hold the Side Button for at least 12 to 15 seconds Press the side power button once to light up the display
before starting a hard reset to prevent it from shutting down mid-process, which can cause software corruption. Force Reboot how to hard reset redmi watch 3 exclusive