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Item # GRM001J

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Item # GRM001J

Measure heart rate, estimate VO2 max, calculate recovery time.

The Garmin Forerunner 620 Bundle provides you with cutting-edge, run-tracking capability courtesy of a Garmin Forerunner 620 GPS running watch. This package also includes Garmin's HRM Run Monitor for accurate heart-rate tracking. Distance and pace are measured through the watch's GPS, which is also capable of sharing location data when synced with the Garmin LiveTrack application (sold separately). The GPS watch and heart rate monitor communicate wirelessly for keeping track of cadence, vertical oscillation, and ground contact time. The internal accelerometer tracks distance when running indoors, eliminating the need for a separate foot pod.

Ever wondered just how fit you are in comparison to peers of the same age? Using an algorithm which crunches running speed, bpm, and heart rate variability, the 620 estimates your VO2 max. After estimating this key statistic, the 620 compares your VO2 max to those of similar age through its colored gauge. The 620 will even predict race times for several distances based off your VO2 max. This is key when training for marathons and other long duration running events, and it allows you to push physical limits every time you train—until you reach the desired VO2 max and subsequent race time you're shooting for.

Allowing you to run harder through a proper training schedule, the 620 learns your personal physiology based on heart rate data, and it factors this against your last workout, displaying how much time before you're fully recovered and ready for the next run. After you've completed a run, recovery time shows up, informing you of the proper resting duration before your next big workout. Color-coded gauges are easy to understand and read, as green is go and red means rest or engage in light recovery exercise.

Storing and sharing all of this data, the 620 works in harmony with Wi-Fi hotspots and the Garmin Connect application (free download online) to automatically sync when in range. Garmin Connect uploads all of your activity data, shares social updates, and also provides free workout plans. Additionally, the 620 wirelessly syncs with smartphones (currently iPhone app only) that have the Garmin Connect mobile application (free download via Apple App store). Live tracking is available when you pair your iPhone with compatible LiveTrack application (subscription sold separately). This allows your friends and family to track your running stats in real-time, and it shows your route on a street or satellite map so others can retrace your run.

  • GPS connectivity and fitness estimates keep you on route to your goals
  • Large, bright touchscreen displays workout metrics and recovery indicators
  • Traditional watch functions include date, time, and alarm
  • Wirelessly syncs with Garmin Connect, a free social training app
  • HRM Run Monitor heart rate monitor and charging cradle included

Tech Specs

1.8 x 1.8 x .5 in
Heart Rate Monitor:
yes, Garmin HRM Run Monitor included
Software Included:
Garmin Connect (free download online), Garmin Connect Mobile (compatible with iPhone 4S + only;free via Apple App store)
yes, 165ft (50m)
Date Indicator:
Battery Life:
(Watch mode) 6 weeks, (GPS mode) 10 hours
Battery Type:
rechargeable lithium ion
Face Size:
1 in diameter
Claimed Weight:
1.5 oz
Recommended Use:
running, training
Manufacturer Warranty:
1 year

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Like a whole new runner!

  • Familiarity: I've used it several times

I had never trained with a GPS watch before and I can't tell you what a difference it makes. The Forerunner 620 accurately tells you speed, cadence, time, distance while you're running so you can be sure you're getting exactly the workout you wanted. It eliminates the constant questioning of, "am i going to fast? could I go faster? am I working too hard? how far have I gone" and lets you just run, guiding and coaching you the entire time. Also, the Garmin Connect app on your phone (which links to the watch via bluetooth whenever they're close) lets you add workouts (your own or pre-made ones) to the watch and download what you've done so you can keep track. I'm not a super serious runner, but I used it in a 5k over the weekend and set a PR and won my age group - I can't wait to see what we can do together with a little more training!
I also got the speed and cadence sensors for the bike which lets you track your cycling the same way and with the same interface. Awesome!

can you use this watch to track cadence while on a bike? Or is it only for running?

You can get a wireless sensor for your crank and one for your hub and use this watch as your bike computer - obviously with these it will tell you your speed and your cadence. I got this for my wife and now am jealously looking to get one of my own.

Great Watch, Great Features

  • Familiarity: I've put it through the wringer
  • Fit: True to size

Have been using my 620 since it was released. Much slimmer and lighter than GPS running watches I've owned in the past. The touchscreen is great and easy to use. Love how you can customize the data fields on the screen and view things like current pace and heart rate during my runs. The recovery advisor is very helpful. It will let me know how long of a break I should take in between workouts based on the intensity of my last run. It also stores my personal records and has a race predictor feature. This watch has definitely benefited my training.