FirebaseAuth on wearOS not working?

[emme1009]

I searched all of the internet about this topic but found zero information or only outdated informations.

I try to create a standalone wearOS app with Flutter in order to show notification and maybe a counter about open orders of the logged in user.

However i cant login with email and passwort.. (SHA1 and google-service.json are all set correctly and the Android wear emulator of android studio has the google play service installed).

I always get The requested API is not available:

I/BiChannelGoogleApi(20424): [FirebaseAuth: ] getGoogleApiForMethod() returned Gms: com.google.firebase.auth.api.internal.zzao@7de5147
W/DynamiteModule(20424): Local module descriptor class for com.google.firebase.auth not found.
I/FirebaseAuth(20424): [FirebaseAuth:] Preparing to create service connection to gms implementation
E/GmsClient(20424): unable to connect to service: com.google.firebase.auth.api.gms.service.START on com.google.android.gms
I/flutter (20424): error signing in
I/flutter (20424): [firebase_auth/api-not-available] The requested API is not available.
I/flutter (20424): code: api-not-available

I saw on a very old SO post that firebaseauth is not supported on wearOS but that was a few years ago.. But as stated before i have not found any information regarding this topic.

Does someone know a solution or has some further information for me??

Thanks in advance