Garmin
Forerunner 255 Series
Long battery; but wrist HR tracking is inconsistent.
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I haven't used Coros for Hyrox, but do use it for running and it's fantastic. +1 on the above!
My friends and I have recently all got Coros Pace watches and they're really great!
Yes I had mine die during a marathon run. I immediately bought a Coros Pace and it’ll last me days without charge.
Yes. I’ve had no issues and I love their software.
Hi there, I use Coros. Like you, I wanted something that would just do running, no other bells and whistles. I wanted something with accurate GPS and good battery life. It has its own app and it also sends automatically to Strava. The price point is in the 200s USD for the Pace model, which is what I use. Their customer support was awesome a couple of years ago, but just this past month I had an issue and got lost in the maze of AI robots that everyone is using. Eventually a real person showed up, but not until after I had already bought a new watch, since my marathon training cannot afford to wait for AI robots lol. FWIW, despite that, the new watch I chose was the updated version of the Coros Pace, because I still really like it. Hope that helps!
Coros pace (pro if you need better mapping). Fitbit just went downhill since Google is trying to integrate it, GPS signal is bad and sync to Strava doesn't work most of the time. My charge 5 died after just 2years. I went for Coros over Garmin because Garmin wants to charge you monthly for sleep data and other stuff. Coros doesn't.
I use a Coros Pace and I love it. It's lightweight, comfortable. And for any run completed within a day, it's sufficient for battery life. Also, good value and price.
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