Garmin
Forerunner 255 Series
Long battery; but wrist HR tracking is inconsistent.
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I am using an Amazfit trex 2 since last 3 years and it's an amazing value for money smart watch. You can check out accuracy comparison videos for this with garmin, whoop or apple watch on YouTube. Its a common consensus in fitness community that it delivers good value at the price point. Amazfit has recently launched the next version of t rex 3 pro which is an amazing watch too. I have recently heard very good reviews about hart ring by fittr in my network too.
The watch so many people have no idea exists, is the Amazfit T-Rex 2 or 3. I prefer the 2 as the size is perfect but the 3 is larger. These watches can do it all and have a battery life on a single charge of 27-30 days. Yes, it tracks your health, phone calls and messages etc. You name it, it can do it. I was dead set on Garmins top watch and stumbled on the Trex at Best buy by accident. Saw it was a couple hundred bucks and can't find anything like it for the price. Link, https://us.amazfit.com/products/amazfit-t-rex-3?srsltid=AfmBOop_QFFZAqxYEbadiSkjE18Be4yPUUNQ1yQYy1i70QuodQiDMxmI
I had the T rex 2 and I loved it! Such a good watch for the price. 3 will definitely be worth it
Can't walk right now due to a broken toe, but I use an Amazon T-Rex 2 watch with the android Zepp app for walking
I've had 3 different Samsungs, 2 Pixel, a One Plus 3, an Amazfit T-Rex 2 and a Nothing. I'm going back to an Amazfit Active Max. The name brand ones I've had just don't work for me like the Amazfits do. They just work. Otherwise, I like smartwatches just for the tinker with factor...
No need to read these reviews. If you want real world tests of smart watches there are only 2 channels you need to watch to form an opinion i.e The Qualified Scientist and Chase the Summit. In saying that I still use my Trex 2 and still working great for my needs.
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.

Ranked #1
Oura - Oura Ring Series

Ranked #1
Apple - Ultra Series

Ranked #1
Garmin - Enduro 3

Ranked #1
Garmin - Fenix 7 Series

Ranked #1
Garmin - Forerunner 255 Series

Ranked #1
Oura - Oura Ring Series