I had my Forerunner 35 connected to my old iPhone. Ever since I got a new iPhone, my Garmin keeps getting disconnected to it (both phones are logged into the same Garmin account). My Garmin would be 2 inches away from my phone and it alerts me saying bluetooth disconnected.
I have removed the Garmin from my old iPhone through iPhone settings (settings > bluetooth > my devices > "forget this device"), "remove device" on that phone (Garmin app > settings > "remove device"), and even deleting the app from that phone.
On my new iPhone, I removed the device (through Garmin app), restarted my watch, and synced it again. The same situation applies.
Why does it keep disconnecting even though I'm within range and what can I do to fix it/what am I doing wrong?