Chosen Solution
For a while now I’ve been having issues with my Bluetooth. When I connect it with my AirPods to listen to music the connection seems to deteriorate after a few mins and I find that I have to hold my phone not less than 2 feet away from my AirPods or the connection drops but if I bring it back close to my AirPods then whatever I was listening to recommences. I also find that the Bluetooth connection is stronger when in the house. I have contacted Apple who have suggested a few things to try such as reset all settings . I hope someone can help
Hey, is your gps acting out aswell? Like 90% of my customers with your issue is the F-Antennas fault. Replace that part and your phone is working again. Wifi/bluetooth and GPS is “controlled” by the F-antenna iPhone 6 Logic Board Antenna Flex Cable
Replaced F-antenna and it solved two problems: first, bluetooth range was killin me, but it also extended wifi. Took about 90 minutes and the screws are mm small, fractions of an inch, but ifixit kills it as always.