The official Yahoo Mail app for Galaxy Watch 6 is not available. Actually, it doesnβt support any Wear OS smartwatch. To get Yahoo emails or other emails on your Galaxy Watch 5 or Watch 6, simply turn the app notifications on your phone, and sync them with the watch. To get Yahoo mails on Galaxy Watch, go to the Galaxy Wearable app, then head to Watch Settings - Notifications - App Notifications. In the list, now enable Yahoo to get all emails.
When enable Yahoo emails on your phone, then you can view them and reply to them from the Galaxy Watch. You can use QWERTY keyboards like Gboard & Samsung Keyboard to reply. Further, it also has Google Assistant, emojis & swipe gestures to send replies.
Samsung watches have become so advanced that they have received major essential apps in the past few months. It has Microsoft Outlook & Gmail in the Play Store, but the Yahoo Mail app is still missing on the Galaxy Watch.