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

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No kill like overkill, baby! I got a Fenix 8 51mm Sapphire Titanium AMOLED. Probably don't use anywhere near all the features, but it rocks.
All the hardcore runners I know are wearing Forerunner watches. The hybrid guys are wearing Fenix. Battery life on either will be excellent. Fenix gets updates for years. New features, as others have noted, will be limited to the 8. Really depends on if you want the look/weight/features of one or the other. I had the Fenix 7x and it was excellent. Currently in the 8, it isn't radically different in terms of what I use it for.
Most people saying battery life is not a problem on the AW have to be kidding themselves . Who wants to charge each time you take the watch off, also charging constantly will reduce battery life over time. But if you are doing half marathons, marathons, ultras and the like, the battery life doesn't stack up on the AW. Running a 50km ultra on my fr965 I could use navigation and music from the watch and had battery life left. For a 100km ultra I could not do the music, so eventually went to the 51mm Fenix 8.. Best thing, is if you forget to charge, no biggy plenty of battery life.. And the torch, have to agree with others, it's so underrated, use it heaps. Even when my ribs go a bit longer then intended, getting into night, works well for lighting the paths / tracks when you don't have a headlamp. I would love to have the AW, but battery is a main factor, and not sure how well it plays with Android. Oh and do they have equivalent to Garmin Connect? All your metrics in one spot?
I just got the Quatix 8 in 47mm and it has all of your required features, plus I think its the best looking Garmin right now. Battery lasts 15 days on a charge. love it. https://preview.redd.it/tlszgqfe13gg1.jpeg?width=1848&format=pjpg&auto=webp&s=5278ea2b3202bb61f1c1f330b6fdee57f69f1467
Be aware you will be losing a lot leaving Apple Watch. You’ll get lots of benefits of course but the UI / Apps / Software / Music Streaming are pretty bad. It’s going to feel especially bad coming from a polished OS experience. Having said that loads of pros. Top notch fitness tracking. Battery for days. Flashlight. Super rugged looking and performing hardware. No phone on your wrist distracting you lighting up like a Christmas tree all the time. The software and the bugs are what let Garmin down. If you can cope with that I have an Enduro 3. IMO best watch Garmin make. Second Fenix 8 (non pro) 51mm solar.
It’s the king of Garmins line up in my opinion. If you don’t dive or need a speaker then no point getting the 8. The enduro is an 8 without those features. It’s also lighter. Super comfortable and has battery for weeks.
The fenix has a few of the Apple safety features but nowhere near as good. They have the main one high / low heart rate alerts when not exercising. I think they have some sort of fall detection but it's not as good or polished as Apple. With Garmins buggy software not sure I'd trust it anyway. AW also has sleep apnea alerts and hypertension alerts (new) which the Garmins do not have.........yet.
For me it is the Fénix 8 solar 51mm
It fits you well, but you should consider the 47mm Fénix 8. I have a Fénix 8 and it is the best watch I have ever had. I recommend it to you
I have a Fénix 8 and for me it is quite reliable in sleep and cardio. And if you want more precision in your sleep, I recommend the Index Sleep Monitor
I have a Fénix 8 but for the use you are going to give it, the Forerunner 255 or 265 would be good for you
Since the differences are not many, both watches will serve you perfectly but I would go for the Fénix 8 which is aesthetically more beautiful and resistant
I have a Fénix 8 and it is the best Garmin watch I have ever had. I recommend it to you
I have a Fénix 8 and it is the best Garmin watch I have ever owned. I recommend it to you
Yes the 5 buttons are essential. I have a Fénix 8, it is touch-sensitive and has 5 buttons. I never use the touch screen, I always use the buttons.
Buy a Fénix 8, I have one and I recommend it 100%
Ich habe mir die Fenix 8 Amoled Titanum Sapphire 47mm direkt nach dem Launch gekauft und bin bis heute super glücklich, von der Fenix 7 gewechselt zu sein. Im Allways on-Modus hält der Akku nach wie vor 7 Tage. Ich habe täglich mindestens eine Aktivität mit GPS-Nutzung und per Bluetooth gekoppelten Sensoren und Kopfhörern. In den ersten Monaten gab es noch erhebliche Softwareprobleme. Die sind aber soweit ausgeräumt. Ich kann sie dir nur wärmstens empfehlen. Auch im Sonnenlicht hatte ich noch nie Ableseprobleme. Die Karten sind deutlich besser als bei der MIP-Version. Und ich hätte nie gedacht, wie oft ich die eingebaute Taschenlampe nutze.
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