Garmin Forerunner 45

Based on 128 reviews

The Looria Grade (A - F) accounts for multiple factors, including sentiment, helpfulness, and more. Learn about our sources and ranking.

  • Great for beginners
  • Lot of sports profiles
  • Good battery life
  • Excellent design
  • Works with Strava


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FR 45:. > We recommend the Garmin Forerunner 45 for runners who want a simpler watch to track workouts and all-day activity.
Garmin Customer Support Is Best In Class (On the Amazon level)
I've pre-ordered the Garmin Foreunner 45s in White. Before I get into the specifics of the watches themselves (I've had the 35, the 235 and some of the vivo and smaller watches thru the years) - I do want to first compliment Garmin customer support and give them an A+ rating. Thru the years when I'v...
3 years ago
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Both the Body battery and the Resting Heart Rate have noticeable changes that align with what I feel. In all the nights I had decent sleep (\~7h), good enough to charge the battery on any other day. ​. I'm definitely going to pay attention to these 2 metrics before any workout from now on.
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Garmin Forerunner 45 Review
During a one-mile walk on the treadmill, both the watch and a Polar H10 chest strap recorded 144bpm, and during a one-mile run, the watch recorded 163bpm to Polar's 162bpm, so you can feel confident in its results..The Forerunner 45 also does well tracking sleep accurately, correctly identifying the times you go to bed and wake up
Brenda Stolyar
7 months ago
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I was wearing a Garmin Forerunner 45, carrying an inReach mini, and my cellphone using The Hiking Project. I tracked my route on my watch, which worked great but ate the battery. I hadn't adjusted any of the power-saving settings. I will next time, but I wonder if it will affect accuracy.
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Apple SE to Garmin
If those are a bit too expensive for you, but you still want all the bike sensors (like power meters), a Forerunner 745 is a bit less expensive than those. It still supports power meters, but doesn't do quite as much. The next step down in price is the Instinct. This watch does not support power meters, but is more focused on multiple activities than the similar cost Forerunner watches.
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Died after 4 months
My 45 simply died after about 4 months. Totally dead. Nothing worked. I contacted customer support. They will replace it. But only after I ship the defective watch they sold me back to them at my expense. They will not ship me the replacement until they receive the defective piece of crap they sold ...
3 years ago
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Garmin Watch Worth it?
I like the forerunner 45 because if its simplicity. It doesn’t really do anything strava doesn’t do, but it does do heart rate monitoring which makes it almost worth it just on that alone. But also I find bringing the phone to be annoying. Imo the expensive models aren’t worth it but the forerunner 35/45 can be very cost sensible and nice to have.
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Garmin Forerunner 45 Fitness Sportswatch // In-Depth Review & Tutorial
I found that the step counts were very realistic along with calories, but just note that you may not have a completely accurate calorie count. If you do a lot of weight, training activity, since the hurry, may not be accurate for that sort of activity, but also note that it does not track floors climb, since it does not have a built-in altimeter. And lastly, it does also track your sleep, which was very realistic and in line with other trackers
7 months ago
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Please help this beginner choose a running GPS watch (resources comparing different models are welcome!)
During the run I can see my pace, heart rate, heart rate zones, cadence and others. It also has amazing battery life, I only need to charge it once a week. I think its about $420 CAD, but I've seen it go on sale for upwards of 50% off, and Black Friday is coming up. Ive also heard good things about the Garmin Forerunner 45 being very good value for the cost.


Recommended Use



USB, Bluetooth

Tracking Data

Distance, time, speed, calories burned, heart rate, elevation, pace, cadence