Why does the screen of the Xiaomi Smart Band 10 light up when tapped after 15 minutes of inactivity in an unpaired state?

If the screen of the Xiaomi Smart Band 10 lights up when tapped after 15 minutes of inactivity in an unpaired status, please refer to the following details:
1. When the Xiaomi Smart Band 10 is left idle on the language selection screen or the pairing code interface for 15 minutes, it will automatically enter a sleep mode. In this state, the screen turns off to conserve battery, but the device remains powered on in the background;
2. A simple tap on the screen will wake the band and return it to its previous state. However, if there is no interaction for a total of 30 minutes, the device will automatically shut down. To restart it after a shutdown, the band must be connected to a charger.