When the glasses are removed, the capacitance value in the wear detection area on the temple changes. By comparing the capacitance value in this area with a baseline, the glasses determine whether they are being worn. When switching from a "wearing" to a "non-wearing" state, the glasses initiate a Bluetooth disconnection with the phone.
The following are the known scenarios where the Bluetooth connection could be maintained even after the glasses are removed:
If there is some residual sweat on the temples. In such cases, wiping the temples or waiting for the sweat to evaporate can help trigger the transition to a non-wearing state, prompting the glasses to disconnect from the phone's Bluetooth.