Connect keeps forgetting Venu 3

You could try resetting the Network on the phone (that may resolve some interference issues between BT and Wi-Fi, which often leads to connectivity loss), and/or installing an older version of the Connect app (from the time it worked all right). You can find older versions for example at apkmirror.com. Some more tips can be found in the Sync / Connection Troubleshooting Guide.

I'm encountering the same problem. I have tried hard resetting the watch and deinstalled/installed Garmin Connect. Garmin Connect won't find the watch, but also any other devices with Bluetooth (Laptop, iPhone) do not find the watch. I have no idea if this is a Garmin problem or an Android problem :(.

I've been experiencing the same thing - I updated my Garmin Connect app and my watch's firmware and now it doesn't stay connected for more than a couple of hours. The phone forgets the connection and I have to run through the whole setup again.

I contacted Garmin support and they basically said it was a phone issue and not a them issue. I followed their basic troubleshooting steps and went back to them to say that I've had the same phone since December but the problem only started when I updated either the watch or the app. My wife also has the same phone as me and has a Garmin, a Forerunner, and isn't experiencing the same problem. That seems to rule the phone out, but Garmin support came back to say it's definitely not something they can support me with.

Next step is to factory reset the watch and see if that works - at that point I'll have identified whether it's the watch update or the app.

Short: I did not find a solution, but I have some ideas

Long: The connection problems started after I went swimming wearing the watch. So although I think it's unlikely, it could be a hardware issues due to water damage. I think it's more likely that something somewhere with the software update to version 14.5 went wrong (although the watch worked just fine after the update). To my knowledge it's not possible to reverse this update. So I signed up for the Betatester-programm and have since received several updates, which unfortunaly didn't help.

Now I'm wondering, if it is even possible to reverse the bluetooth bug once it appears. Also I'm unsure what die factory reset even does other than forgetting your setting. I now had the idea to try resetting the watch and deinstalling Connect so I can start "fresh".

In the end, this is really frustrating. I have not heard back from the German support for over 10 days and this is the second Garmin watch I have that has unresolvable bluetooth issues.

Having the same issue after a firmware update on my Venu 3 (Pixel 8a). In my case a factory reset hasn't worked. 

if I press cancel when it suggests "Reconnect Device" it will connect again eventually. Really frustrating problem though.

Garmin support told me it wasn't a known issue and just gave me instructions on how to pair the watch and phone, so I'm not optimistic that they'll fix this. 

I have officially declared my watch dead. I did one last factory reset which did not help.

What I did was browse the watch files via my computer. And - tada - the watch kept creating an error log since the problems started (always the same error). I uploaded the error log to ChatGPT and it told me, there was a problem with the flash memory. The AI also gave me the advice to turn off the watch, charge it and wait for 10min (ChatGPT called it "soft reset" - fun fact, it did not help). I kept using the watch without the bluetooth connection but the problems kept getting worse. The watch continuesly installed the same update again and again - I guess this prooves the flash memory problem.

I had the Venu 3 for less than 1,5 years which leaves me very disappointed. However, I talked to ChatGPT about this and the short live span of the device. AI suggest, that I was asking a lot (if not to much) from the watch. In the time I had it, I pretty much wore it 24/7 and recored an acitivity nearly daily. I'm not sure what to make of this, but will consider buying a watch that's more of a classic fitness watch (and hopefully more durable).

Yes, Garmin gave me the basic troubleshooting and then told me very firmly that it was a problem with my phone. Since factory resetting the watch solved the problem for me, I doubt that. 

I'm sorry to hear that the same solution hasn't worked for you, and wish you luck getting it solved.