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

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That month doesn't include hours of tracking each day. That will cut it down to about a week or less. (Source: Garmin Enduro 3 owner)
I got the Enduro 3 with a 20% off coupon by downloading the Optimity app and playing Yatzee until I had enough points for the Garmin coupon. It brought the cost below $800 including tax.
I ended up going with the Enduro 3 from a Fenix 6 for the reason you stated. I didnāt need the dive feature and speaker as well
I went from an AW to first an Epix pro gen 2 and then an Enduro 3. Although I did like Siri on my wrist, I can still change my music from my current Garmin, and see the notifications Iām getting so I feel Iām not really missing much. I prefer to type on my phone anyway as Siri isnāt the greatest at making words work haha I find the battery life, the durability and just « this is a watchĀ Ā» of the Garmin will keep me. I donāt have a mini phone on my wrist and my eyes prefer the MIP screen. And then thereās the flashlight function. My god what a game changer and so practical, from checking on kids at night to looking for things to doing work with tools. I find I donāt baby my Garmin as much because Iām not worried about smashing the screen or scratching the finish. Thereās also less of a concerns for me personally for water damage and something about physical buttons that I love. Thatās all I can think off the top of my head, but Iāll never go back to AW and Iām very much ingrained in the apple ecosystem in all other areas.
If u want only a watch: your best take is the Enduro 3. If you want a 'computer', Look at the Edge models Like 1040 (mip Display) or 1050 (amoled Display)
I'm wearing an epix pro gen 2 47mm, I would trade it for an Enduro 3 if my wrists were larger. 51mm is a giant watch (for me). With that being said, Enduro is a hell of a watch that I would give up other Garmin watches for.
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