Bluetooth (and wifi) aren't turned off at all through the Control Center - they changed the wording to say "disconnected", meaning that your phone only disconne

Bluetooth (and wifi) aren't turned off at all through the Control Center - they changed the wording to say "disconnected", meaning that your phone only disconnects from known devices. But both are still turned on for other purposes such as CarPlay, Handoff, and Location Services (via wifi). For the purposes of this discussion, they are potentially still transmitting a known identifier. Apple reconnects to known devices and networks at 5am: https://support.apple.com/en-us/102412 https://support.apple.com/en-us/102412 Bluetooth and Wi-Fi Aren't Fully Disabled When Off in iOS 11 Control Center https://news.ycombinator.com/item?id=15297387 https://news.ycombinator.com/item?id=15297387 (2017, 143 comments)