Garmin

fēnix 8 Solar 51mm

Garmin fēnix 8 Solar 51mm

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Overall

#15 in

Fitness Trackers

according to Reddit Icon Reddit

Sentiment score64% positive
54
13
17

Top Pros

Top Cons

Last updated: Apr 17, 2026

Reddit Reviews

Reddit IconAlgunas
8 months ago

Fenix 8 Solar 51mm. 22d. No workout tracking, no notifications. Just passively tracking my life.

Reddit IconConscious-Archer-816
7 months ago

I was holding out for the 8 Pro, but after the reveal I went with the 8 51mm Solar.  I am team MIP display and that not being an option on the 8 Pro I was immediately turned off on it. 

Reddit IconFireFighter-116
6 months ago

Im in garmin ecosystem for 1 year and I dont see such problems as other users. I mean, im using a Fênix 8 51mm solar now and didnt notice bugs and the battery doesnt reach as much as advertised, but performs very well. My former epix 2 had some bugs, but Garmin fixed. Charging port its ok. However, my old t Rex 2 from amazfit had magnetic charging port, which was nice.

Reddit IconNevaljaliPerica
7 months ago

Fenix 8 51mm AMOLED around 14-16 days - no activities at all. Fenix 8 51mm MIP around 18-19 days - no activities. MIP should be double battery life. It sucks

6 months ago

The only solution is to wear them both. The only problem is which one goes on which arm. I keep flip flopping. So far left arm is for Fenix and right for AWU. If Apple Watch Ultra had at least 5-7 days of battery life, a way to operate it with or without touchscreen, had a flashlight, and offline maps it would be unbeatable. I doubt any of these things are coming any time soon.

Reddit Iconnotinsuit
7 months ago

I have a Fenix 8 Solar and I have to charge it weekly. That’s 52 times a year

7 months ago

The hyperbole is unwarranted since the Fenix 8 Solar 51mm, which is basically the best Fenix, battery-wise, is so far from charging it once a month, that it’s ridiculous. It’s not a smartwatch (unlike the Apple Watch, for example) and the battery everyone brags about is perhaps if you’re not using it to track anything. I’ve had mine for 11 months now and I’m literally charging it weekly. I like the running metrics, especially since the last update, but still, where’s my one month battery?

Reddit IconOk_Organization8849
7 months ago

I replaced my Fenix 8 51mm solar a few days ago and I'm totally happy. I like the app much better. My Suunto works much better with rouvy than Garmin (there I always had to run two activities) and also when running Zone Sense is a game changer So from my side: I'm glad to have changed and don't look back anymore

Reddit IconPohq
5 months ago

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.

7 months ago

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.

Reddit IconPronouncedNuculur
3 months ago

Fenix 8 51mm MIP and Forerunner 970. The Fenix 8, because it will do anything I want and the battery lasts forever, but it was just too big for daily wear and so bought the 970. The 970 is great for daily wear and has the same sapphire display to be just as durable and would be fine as my sole watch, but I can’t be bothered to sell the Fenix and so now it’s my workout watch and vacation watch.

7 months ago

I have the fenix MIP 51mm and a forerunner 970. Unless you are diving, I don’t think the fenix adds much. It’s quite a bit thicker too and so has a feeling of sitting up on your wrist whereas the forerunner, I think fits more natural. I wear the forerunner as my daily and wear the fenix for workouts and take it on vacations so I don’t have to worry about charging.

6 months ago

If you are set on 47mm and AMOLED, go with forerunner unless you dive. The forerunner has basically the same features and is lighter and considerably thinner. If you’d consider MIP, it’s only available on the fenix and makes for significantly longer battery life, but I get ~6 days on the 970 with AOD and I can’t imagine needing more than that. I do take my MIP Fenix 8 on vacations though so I don’t have to worry about charging, but it’s just too thick for daily wear.

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