Which is basically google maps with a couple extra features. In my utterly unscientific, purely anecdotal study I’ve found the traffic and routing data to be better at avoiding traffic and providing more accurate arrival times. This data was collected over a long diving vacation where my wife and I both had maps up (me:waze, her:Amaps) and about two thirds of the way through in asked her why her Waze was giving her different (and substantially shittier) directions than on my phone (both are iPhones). When I looked at her phone it clearly wasn’t using Waze. She didn’t realize she had defaulted back to Apple Maps.
I don’t mind Apple Maps, generally, and the watch integration, like everything else, is excellent. But I mostly hate how ugly my Apple Watch is and rarely wear it anymore.