Garmin
Forerunner 255 Series
Long battery; but wrist HR tracking is inconsistent.

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I had a 1st gen solar, for like 1-2 days, the only thing I recall was that it took some time to get gps fix, even if updated, synced with garmin connect. Other than that it recorded stuff. Although I love the yellow one, would buy it as main watch today, but everyone has different exigences
While I agree having come from a Garmin instinct solar with incredible battery life. The pixel watch 4 needs to be charged every ~2 days and has fast charging. So take it off, pop it on the charger, have a shower and it's back to 100%. It's seriously impressive.
I still wear my Instinct Solar daily. If you are replacing Apple watch you may be disappointed. I wouldn't call it a smartwatch necessarily, more a sports watch. I specifically got it because I didn't want a smart watch I just wanted something to record workouts and health data as well as the breadcrumb feature it has in case I ever got lost backpacking. It's a great watch, I love it. After multiple years the battery life is still great. If I'm not recording activities with it, I have around 25 days charge time on average. Has been very durable for me I wear it everywhere doing everything and no issues. I got one small scratch on the screen a few years back and thats about it.
Agreed. I have the Instinct (solar). It has a simple screen and it’s rugged. I think it has all the tech you need. I use it for MTB and backpacking.
We have the Garmin Index S2 scales. I wear a Garmin Venu Sq and my husband has a Garmin Instinct Solar. TBH we would not buy anything else!
Man I had the solar instinct. Problems with charging in the first year itself. Year 2, watch started randomly dying while tracking activities. I assumed updates might fix it but never did. Customer service wasn't helpful at all. Asking me to pay for a refurb and other nonsense.
Garmin
Forerunner 255 Series
Long battery; but wrist HR tracking is inconsistent.

Garmin
Forerunner 955 Series
Best value, clear MIP screen; limited smartwatch features.

Garmin
Fenix 7 Series
Durable, multi-week battery, flashlight; high price, buggy software.
Garmin
Instinct 2 Series
Rugged, solar multi-week battery; bulky, small screen readability issues.

Garmin
Enduro 3
Multi-week solar battery, lightweight; but bulky form factor.

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Oura - Oura Ring Series

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Apple - Ultra Series

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Garmin - Enduro 3

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Garmin - Fenix 7 Series

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Garmin - Forerunner 255 Series

Ranked #1
Oura - Oura Ring Series