Yes, the Garmin vivoactive 5 watch can display messages and calls from an iPhone. Here's how it works:

- The watch needs to be paired with your iPhone via the Garmin Connect app.
- You need to enable the necessary permissions in your iPhone settings, including the "Share system notifications" option in the Bluetooth section.
- Once the permissions are enabled, you can configure the notification settings in the Garmin Connect app to receive notifications of messages, calls and other applications directly to your watch.

This means you'll be able to see the person's name and the text of messages, as well as calls, directly on your Garmin vivoactive 5.