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.
It's changed a lot since I moved off my Huawei then. And the primary reasons I went Tizen when I did were the glacial pace of software improvements and the shitty "upgrade" they announced to the SoC all the WearOS devices were using at the time. I don't recall the details of the crappy qualcomm "upgrade" aside from remembering that it really wasn't one in practice, and solved neither the battery life nor performance problems of WearOS at the time. (not even sure they were calling it WearOS then, IIRC they changed it from the original name around that time)
I'm not surprised a watch several gens newer is going to get better battery life than my original GW, but I don't find I'm fussed enough about anything about it to spend money on an upgrade currently.