My vivoactive3 pairs with the phone, but the bluetooth connection is unstable unless I turn off wifi on the phone. I have tried with Samsung J2 and A71.
With the J2, I have to restart the phone, unpair the watch and re-pair before it will connect again, but the connection drops out shortly afterwards (ie. within a few minutes) unless I turn off wifi on the phone - when it disconnects, I have to restart phone, re-pair etc. to connect it again each time.
I bought a Samsung A71 thinking the older phone was incompatible with the newer watch, but the connection to this is just as unstable, unless I turn wifi off - there is an improvement with the new phone, that it will usually reconnect again automatically (sometimes almost immediately, other times it can take up to 20 minutes). I've tried reseting everything, from networks/connections, to a full factory reset and then installing only the Garmin Connect app, but the problem remains. I've been monitoring it and it is connected only about 50% of the time, so I end up missing notifications.
With either phone, the connection seems stable if I turn off wifi on the phone, but this is not really workable!
The J2 worked fine with my previous vivosmartHR (including with wifi on!) but Bluetooth connection to the A71 is unstable with both watches (though less unstable with the vivosmartHR, than the vivoactive3).
I took the Samsung A71 back to Samsung Service Centre today and they tried it with a couple of other Bluetooth devices but they found there were only problems with the connection to the Garmin watches (which require Garmin Connect app).
Is this some problem with the Garmin Connect app?
