Wear OS 5 only supports the Watch Face Format, old faces can’t be downloaded - 9to5Google

1. Wear OS 5 only supports the Watch Face Format, old faces can’t be downloaded  9to5Google
2. Wear OS 5 Doesn't Like Your Old Watch Faces  Droid Life
3. Google warns that older watch faces won't work with Wear OS 5  Android Authority
4. Wear OS 5 drops support for old watch faces; only WFF allowed  Android Headlines
5. Your new Wear OS 5 smartwatch may not support your favorite watch face  Android Police