I could not get text messages to display on my 5X watch connected to my Samsung S10. I tried everything. FOUND THE ANSWER! It was the Messages App itself. I went to the Playstore and loaded a different messages app (Basic one) and set it as the default messages app. Hey presto! All works as intended. All notifications and messages work now. It was the default messages app that came preloaded on the Samsung S10 . Hope this hels someone. What a fantastic Watch. Garmin you are the best.