I had some time to play around with the Pixel watch 2 and tbh, the whole idea of smartwatches seem a tad gimmicky. If you want to check on how far you've walked for exercise, you can get that info from Google Fit on your phone. If you want to use apps like messages, Google Keep, Maps etc, why would I do that on a tiny screen? I can do that on my 6.7" Pixel screen.
Sure it tracks and tells you your heart rate but what blood pressure, which is just as important and is the heart rate tracking really accurate that you can rely on? What is convenient is getting time and weather temperature when you look at the watch. But honestly there's not that much more I find worth using this for. Maybe that will change in time if I find out more of what it can do but so far like I said the idea of a smartwatch just feels rather gimmicky and that includes the Apple Watch.