For me, one of the reasons why I wanted to pick up a Google WearOS smartwatch was because I use 2FA and being able to quickly open the Google Authenticator app on my smartwatch and enter one of the 2FA codes is so convienent. The keyword here is was.
Google recently (first half of 2020) updated the Google Authenticator app. The UI got an overhaul and there was now the ability to transfer your accounts. All great things. However with this new update it would appear that Google “broke” the Google Authenticator app on WearOS. Well broke is partially correct. Essentially the Google Authenticator app is no longer present on WearOS.
One morning I tried to use the Google Authenticator app on my smartwatch but all the app would do was load. A white background with a blue spinning circle would appear. I would close the app and re-open it but nothing changed. I went into the settings and force stopped the app, re-opened it but the results stayed the same. Stupidly I uninstalled the app from my smartwatch thinking I’d just redownload the app from the WearOS app store. That was a big mistake.
If you use the Google Authenticator app on your WearOS smartwatch then do not uninstall the app. You cannot redownload it. It is not listed in the WearOS app store.
It would appear that Google has (for the time being I hope) removed the Google Authenticator app from the WearOS app store. If you search for it, it does not appear. If you go to the Google Play store through a web browser and search for the app and try to install it on your devices you may notice that your WearOS smartwatch is not a compatible device. I can see my Android devices where I am logged in but I can’t install it via the browser for my smartwatch.
Going over to the support forums to see if there is some way to fix this or what is going on shows others have and are experiencing the same problem with most accepted answers being to file a bug report in the app. Now if someone has uninstalled the app then this can’t be done. Fingers crossed the engineers at Google see the forum posts and are aware of the issue (most likely they are). Hopefully the issue is resolved soon as now if I want to use my laptop in the living room and leave my phone in my bedroom I can, but I can’t log in to most of the sites and services I use because I have 2FA enabled where available. I am back to moving my phone room to room again 😦