Apple iPhone 6
Apple iPhone 6 Wi-Fi and Bluetooth connection problems?
Bluetooth in iOS 8 has very little signal strength.
https://discussions.apple.com/thread/6570627 »
Sick of issues with iOS 8 on iPhone 6 (not just Bluetooth)
https://discussions.apple.com/thread/6575892 »
iOS 8.0.2 Did not fix BlueTooth issues!
https://discussions.apple.com/thread/6563382 »
Directly from the Apple Forums. 😉