Garmin Forerunner 620 GPS Running Watch Review

Garmin Forerunner 620

Summary: Top end kit from the respected Garmin. This watch is colour, has a touch screen and connects to the Garmin Connect community. What makes it stand out is the combination of speed, cadence, breathing and ground contact time to improve your technique and performance… all in a smart looking watch too. Big discount for this one at the time of writing at, see this product page for details.

Garmin Forerunner 620 GPS Running Watch with Colour Touchscreen Display and Heart Rate Monitor - Black/Blue
Built-in accelerometer tracks distance and pace when you’re running on an indoor track or treadmill…

Detailed Review of the Garmin Forerunner 620 GPS Running Watch

The forerunner 620 is the next step up from the fantastic Forerunner 610. This watch is in a class of its own though. The 620 is for serious runners and is practically your personal running coach – available to you 24 hours a day.

The 620 has the technology on board to figure out your VO max – the maximum capacity of an individual’s body to transport and use oxygen during incremental exercise. This is a great indicator of your overall level of fitness, which you can watch improve over time. Based on your history and heart rate data the 620 can figure out exactly when you’re fully recovered and ready to go again for that personal best you’ve been after.

The downside to a lot of GPS watches is that they’re useless when training indoors on a track or treadmill. The built in accelerometer in the 620 fixes that. All of your indoor running can also be tracked and used in determining your running form and recovery time. Your data can be uploaded onto Garmin Connect and shared and analysed by the massive fitness community there.

The 620 is super-fast to find satellites, the heart rate monitor provides accurate and smooth readings and the new running dynamic metrics like cadence, ground contact and vertical oscillation are really useful – a genuinely top-end running watch.

Spec of the Garmin Forerunner 620

  • Full colour touch screen display
  • Comfortable lightweight design
  • Automatic live updates to Garmin Connect
  • Compatible with iPhone and other apps via Bluetooth technology
  • Built-in accelerometer tracks your pace and distance when running on a track or treadmill indoors
  • When paired with heart rate monitor, the Forerunner 620 measures cadence, vertical oscillation and ground contact time to help improve your running form
  • Race predictor
  • Recovery advisor
  • VO2 max estimate