@tokyo_0 My experience is from Android, but AFAIK it should work the same way with iPhone. I installed Garmin Connect on the new phone, paired it with the watch, everything stayed intact and the watch is still paired with the other phone, too. The only thing Garmin warns about is that if the watch is connected to both phones over Bluetooth at the same time, there may be connection issues.

I didn't know that! It will be helpful to syncy watch with both my work and personal phones! Do you get notifications from both phones on the watch?

@mlabowicz No, the phone is connected to one phone at a time (whichever phone connects to the watch first). Garmin says that if both phones are around, there may be connection issues. I never had a problem with connection between the connected phone and the watch, but I noticed that my chest belt didn't connect to the watch automatically. So I ended up with Bluetooth disabled on one of the phones.

good to know, thanks for the clarification. Switching BT on/off on the phone you want to connect to seems like a good plan