Garmin

fēnix 8 Solar 51mm

Garmin fēnix 8 Solar 51mm

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Overall

#14 in

Fitness Trackers

according to Reddit Icon Reddit

Sentiment score66% positive
63
14
18

Top Pros

Top Cons

Last updated: Jun 17, 2026

Reddit Reviews

Reddit IconPristine-Buy-436
9 months ago

I burn around 1-2% per hour on runs and rides and around 3-4% baseline without activity. 51 mm MIP.

Reddit Iconstevendq
9 months ago

Fenix 8 52 MIP - Typical use is 10-14 days for me. That’s about 18hours of activity tracking, and daily smart phone connectivity. I also use the flash light at night (on low) and oxygen tracking at night. During the summer it’s marginally better with the solar - but I tend to do more hours activity then like longer bike rides so it balances out to 14 days still.

Reddit IconAdSecret219
9 months ago

Why didn’t you get the Tactics 8 51mm solar? I’ve gotten 29 days out of a single charge before with a lot of solar while out hiking.

Reddit IconEvening_Support2282
10 months ago

I have the instinct 3 solar and the fenix 8 (mip of course) I use the instinct 3 more because I don't need so much nonsense, it's lighter and I like its aesthetics much better. The only thing I miss is that it doesn't have maps but it works perfectly for what you want!

Reddit IconVision_Trail
10 months ago

I’d argue for 75% of the people wearing a Fenix 8, the Apple Watch Ultra could do a better job for them at less of a cost. And for the 25% that actually use the Fenix 8 to its full potential everyday, those people do not care about, or want, MicroLED displays and only having a battery that lasts for a few days. If you’re an athlete, or someone off the grid quite a bit, the Fenix 8 solar with mips is still the watch to get.

10 months ago

I’m in the market to upgrade from a Forerunner 265. My plan has been to get the Apple Watch Ultra 3 when it releases in a few weeks. But I’ve just decided to stay in the Garmin family and upgrade to the Fenix 8 solar.. I think the Ultra is a sweet everyday productivity watch. But if you want a dedicated sports/fitness/health watch, you aren’t going to be able to beat the Garmin. I was holding out hoping the Ultra 3 would have a significantly increased battery life, but I’m now starting to think even that won’t sway me

6 months ago

I wear a Fenix 8, love it, and am completely engulfed in the Garmin ecosystem.. However, if I wasn’t an athlete, I’d 100% be wearing an AWU. Garmin makes incredible fitness and health tracking devices. Apple makes a smart phone for your wrist. Both great products for two different clienteles

Reddit IconGhostDog-86
9 months ago

I was changing couple times between Tactix 7 and AW ultra 2 and finally I stop with T8 solar… tbh my Garmin looks like watch and its not bright like a smartwatch. Battery over 2 weeks :) I’m soo happy and won’t back to AW unless they do around 1week battery and change this screen from childish colourful to more adult one 🫢🤷‍♂️

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