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

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My new 45MM PW4 came off the charger (after applying the OS update) last night around 7PM. I have always on display on, tracked a one hour spinning workout, and I am sitting at 74%. I came from the 45MM PW3, which was getting me almost 2 days from a full charge (more like 40 hours), so I am very curious to see how this goes over the next few weeks.
Brilliant thanks for confirming! I'll get it turned on on my PW4
The main thing for me was getting a 45mm watch. The 41 felt a little small on my wrist. Dual band GPS is a god send for me as a runner, so I'll have much more accurate GPS tracking. Also the increase in battery size and charging speed were other things for me
Most recently had had galaxy watch 6 classic 43mm, watch 7 44mm, and watch 8 40mm, all great watches . Wanted to go back to pixel watch since all the improvements so I sold my watch 7 and got the pixel watch 4 45mm.. it's my favorite of them all now. Great display and battery life is the best out of them all.
Same! PW2 to 4 45mm and I'm in shock. I'm now over 27 hours in and at 68% battery still available. This will easily get me 48 hours or more.
Coming from the previous model (Pixel Watch 3) I'm also impressed with the 4's battery life!!
Just got the 45mm pixel watch 4. Came from the 2. 100% worth it just for the battery life. I can finally wear it to bed consistently without it dying on me and then pop it on the charger for 20 minutes the next day while I'm getting ready. Haven't even seen the battery drop below 40% yet.
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