Always see the Display
The Apple Watch 5 comes with an Always-on Display that lets you see the time without touching your watch or raising it to wake. This is perfect if you need to catch a glance at the time in a meeting or during a conversation.
You can also use this while working out, as the workout apps show you the information using this same always-on option. After just a few days this is already a feature I love on the Apple Watch.
This only works with the new model, and it doesn't impact battery life.