You do not have to dump the mind too far to remember when Apple released iOS 11 and the world seems to lose its mind Contrary to how they worked on previous iOS releases, the buttons were changed to simply unplug the device from a Bluetooth or WiFi network rather than completely disable the radio, and that caused great confusion.
Apple has made sure that this behavior is expected and the buttons function as designed, but that does not prevent people from disliking them. Now, with iOS 11.2 beta 3 released today, Apple has started displaying pop-ups that explain the new behavior. While new messages will appear the first time the Control Center is activated, subsequent keystrokes will cause iOS to show messages that say "Removing Wi-Fi Network Near Up To Tomorrow" or "Removing Bluetooth Devices Until Tomorrow.
While those messages are true, there are more situations where the radios may be re-activated without a user having to explicitly request the same. There are actually plenty of those situations across both WiFi and Bluetooth.
When you use the Wi-Fi toggle in Control Center, Wi-Fi is disabled until one of the following conditions occurs:
- Wi-Fi is reactivated using Control Center
- You connect to a Wi-Fi network using Settings > Wi-Fi
- You walk or drive to a new location
- It’s 5:00 a.m. local time
- Your iOS device is restarted
When you use the Bluetooth toggle in Control Center, Bluetooth is disabled until one of the following conditions occurs:
Bluetooth is reactivated using control Center
Of course, if a user wants to disable Bluetooth or WiFi in such a way that it requires manual intervention to be reactivated, they can do so via the Settings app.
Apple also added a small bar under the icon to the right of the status bar when iPhone X is locked, giving users an indication that Control Center can be called with a swipe.
(Source : MacRumors )