ANT HRM disconnects

When did you change the batteries last?

Well.... The units have all been brand new. And it says the battery is OK in the watch display. Interestingly enough the dual HRM will connect BLE to my phone with no issue and seems to maintain connection it just won't maintain a connection with the watch. I would also find it hard to believe that all 3 NEW units had bad batteries.

If the watch is reporting the batteries are ok then they should be. Contact Garmin support because my external HR connects and stays connected reliably.

I had the similar issue with my FR935 (you can find my posts about it). 
eventually I pin pointed that my watch had some sort of problem ( connection to another watch was always fine). So, I bought 945, since that I use the same HRM without problems. 

so, if you can, test the strap with another watch. 

Quick update @philipshambrook per your advice I called support. I spent about an hour on a call with them and in the end they are sending me out a new watch. Basically they agreed this was not the normal behavior. I will post an update once I have a new device. Thanks for the feedback !

I'm having the same issue but Garmin still hasn't acknowledged it's my watch fault. They told me they are working on a firmware solution

SumbarinoWell I will have a new watch here in a few days and can at least tell you if mine has changed. I'll add my watch does NOT stay connected to my phone well at all. I suspect I have 20+ disconnects a day but it is hard to be sure.

Mine isn't that bad, I only have problems during workouts and with my ant+ sensors. No issues with my phone

Sumbarino A replacement watch completely fixed my issues. I had NO idea just how bad it was until I got the replacement.