Garmin

Forerunner 45

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Garmin Forerunner 45

Overall

#86 in

Fitness Trackers

according to Reddit Icon Reddit

User sentiment66% positive
25
4
9

Top Pros

Top Cons

Last updated: Apr 8, 2026

Reddit Reviews

Reddit IconApprehensiveStrike86 1.0
r/AdvancedRunningHow often do you replace your running watch?
8 months ago

Seems like I am replacing my watch every 2-3 years. Battery is always the reason. Have gone with the base models of the garmin forerunner (35,45,55) then finally upgraded to the 200 series most recently.

Reddit Iconashtree35 1.0
r/XXRunningIs Garmin worth it?
6 months ago

I've really liked all of my Garmin watches! Check out anything from the Forerunner line, like the Forerunner 55. And highly recommend getting a refurbished/used one to save money, if that's an issue for you. You can get the 55, 45, or 35 for a pretty good deal refurbished/used.

r/XXRunningCheap Tracker/Watch to Monitor Real-Time Pace
6 months ago

I would look for a used or refurbished Garmin Forerunner 35 or 45 (whatever you can find for cheapest). Also just to note, GPS is what allows watches to accurately measure distance and pace, so you’ll want a watch either GPS. However for the ultimate cheapest option, if money is really limited, consider just using a running app on your phone instead.

r/XXRunningCheap Tracker/Watch to Monitor Real-Time Pace
6 months ago

You're welcome! And yeah I agree, using a phone is super cumbersome. Having a watch is so much more convenient! Even though they can be pricey, I think they're a good investment. And the longevity of Garmin Forerunner watches is quite good in my experience. And also they stay fairly valuable as long as they still work, so if you eventually decide to upgrade to different model, you can still sell your old one!

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r/hyroxFitness tracker/watch recommendations
8 months ago

I liked my Garmin forerunner 45, which from what I can gather was there least advanced model (I think it's the 55 now). It's also the least expensive, but I think you get alot of bang for the buck with out all the bells and whistles. GPS was almost always on point, had one bad experience, but other than that it worked well. A little slow when conneting to the satellites. With the chest band the I got all the data I need from my runs. Tried the wrist monitor once for comparison but it was of like 20 beats. Don't know if thats what you are looking for, but hoping it helps!

r/hyroxFitness tracker/watch recommendations
8 months ago

I did some gym work with it. From what I recall it wasn't a problem. The 45 is a small watch.

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r/beginnerrunningBest most affordable running watch
10 months ago

Got mine on FB marketplace for $75 a few months ago and it does everything I need!

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r/firstmarathonCheapest functional running watch
7 months ago

Older Garmin watches work fine, I regularly see runners with the 2015 Forerunner 235 at races. And used models will be fine, albeit older watches may have reduced battery life simply due to age. That’s the nature of rechargeable batteries I’m afraid, and it applies to all brands. I would recommend a Forerunner 45 as the minimum, or a 55, and if you can get a 245 in budget then even better Whichever watch you choose, go to [DC Rainmaker](https://www.dcrainmaker.com/) and search for his in-depth review of that model which typically includes a video. They will tell you all about the functions, how to use it, what it can do etc.

Reddit IconConfident_Solid_7289 1.0
r/GarminLooking into the Garmin Venu 2s
7 months ago

I have the Venu 3s and it is rated as a solid running watch on test forums. I run using the Garmin Coach 3 times a week and find the statistics completely sufficient. Previously I only had an FR 45 that could do even less. So it was a big upgrade for me. (But to be honest, the professional statistics would be too much for me, so not absolutely necessary). But if you can't wear your watch that often, then the Venu is too expensive. Then I would also go for the cheaper FR models. I mainly wanted something more stylish for everyday wear, as I feel like I wear my watches 24/7, which is why it suits me very well. 😊

r/GarminWhich Garmin should I go for?! First time user
7 months ago

I can't confirm. I had my FR 45 for 5.5 years and now my dad has it and the battery is still in great shape for its age. 😁

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r/dysautonomiaBest fitness tracker?
11 months ago

I love Garmin. Have had an old Forerunner 45s for a few years and planning to upgrade for the 255S version soon. They’re more sports trackers so their features are geared to that but Garmin also has the Venu or Vivoactive lines that are more smartwatch-y. Other than that I heard good things about FitBits and their sleep/lifestyle tracking but haven’t tried myself.

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r/Marathon_TrainingWhat app/device do you use to track yourself on a marathon/long race? Strava was not accurate on my last race.
6 months ago

My Forerunner 45 from 2018 is still going strong too! Though I use Smashrun, not Strava.

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r/GarminWatchesBest watch for long COVID recovery?
12 months ago

You can find 955 cheaper, wait a bit and you will grab it. I had foreruner 45s, 265, and now epix pro gen 2, but I got it for 50% off, and it is still soooo expencive. Now I will go with 955 most likely. So think that 955 is great option. If you can, go try them- 955 or 965, try to start run, meditation, maps... And see how it feels. Someone can help you there. But 955 is still great and will be, just save some cash, cheers

r/GarminWhat Garmin watch do you own and why?
3 months ago

45s>265>epix pro gen 2>instinc 3 45>vertical 2>255>enduro 3. That was my way. After couple years can say- 255/955 mips are one of best ever for lot of sports and mip lovers, their amoled sibilngs are also great. Instinct 2,3 also great rugged tanks. A little smaller screen for me (like 6-8 metrics for one screen during runs, ins.can go up to 4-5). F7 pro or 7x for bigger wrist, epix pro gen 2- fanstastic options but bulkier- just dont swim with them because buttons can get smooshy (mine did!). Flash and newest opt.hr great! Dont like too bright screens on vx1 and 970, and lame battety. Now enduro 3 comes in a way. It is truly fantastic. Smaller wrist about 17.5cm and it is not heavy like epix pro gen 2 47mm. Battery is 40days with little sun a day and 1h of gps 6 times a week. Crasy. Didnt now what to except, many here adore it, but now- I am one of them.

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r/AppleWatchWill we see an Apple Watch with 7-day battery life in our lifetime?
8 months ago

Well having owned a se2 for 2 years now battery health is at 80% this means that on long bike rides my watch dies before my ride ends. I have now returned to my very old and abused garmin 45 which still lasts for almost a week. Will get myself Garmin Venu or FR 265 next. Also.. If I have to charge my watch daily... It really beats the purpose. And as a smartwatch /fittnes watch : Going on a weekend somewhere? Oh better bring my charger! Going for a ride somewhere but have to drive for 4 hours before arriving there? - oh better turn off the watch before I get there so the batter lasts while using GPS tracking :)) A apple watch that lasts for at least 5 days would keep me in the eco system for sure