My previous one was a Withings Steel HR, Fantastic smart watch, did the basics but it’s main draw for me was it’s analog watch face. Approx 1 month battery life. The smart stuff was shown in a small screen behind it. Ultimately I stopped using it due to age, always losing Bluetooth connection so notifications were unreliable.
My current watch is an Amazfit GTR Mini, Fully touchscreen, Again does basics and few more extras. Battery life is about 10-14days. Nothing to complain about so far.