To a degree it depends on settings. But consider that I've been using this watch for 5 years or so, and I have all my settings more or less "maxed out" regarding consumption. I don't even have auto-brightness on because I always found it annoying for it to adjust when I flicked my wrist - I just have it locked at about 80%.
But yeah, most smartwatches that I've ever been familiar with are getting a couple days when new unless you turn off features. (Bear in mind the newest thing I have first-hand experience with is my original Galaxy Watch, and which I am currently still wearing) I want to say I was making it 48h + when new, but that was so long ago...
For typical smartwatches when I see impressive claims regarding battery life much longer than that, it usually turns out that the person has turned off one thing or another that I don't want to turn off.
Look at Hybrid smartwatches in general, and in particular some of the Garmin models (pack a lunch, there are a LOT of Garmin models, some very similar to each other) for super long battery life, I think.
All this is just IME, and I don't pay really close attention to smartwatch tech except peeking every couple years to see if there's anything that might convince me to move on from my Galaxy Watch. I do like some of the Garmin hybrid models, but I'm not sure I'd like them longterm.