Difference between revisions of "Garmin 620"

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* The 620 is small and light, but the display is quite legible for its size. I find it much easier to read than either the [[Garmin 610]], [[Suunto Ambit2 R]] or the [[Garmin 10]]. (It's a lot better than the [[Garmin Fenix 2]].   
 
* The 620 is small and light, but the display is quite legible for its size. I find it much easier to read than either the [[Garmin 610]], [[Suunto Ambit2 R]] or the [[Garmin 10]]. (It's a lot better than the [[Garmin Fenix 2]].   
 
* Like the Fenix 2, the 620 will show and record [[Cadence]], Vertical Oscillation (VO) and Ground Contact Time (GCT). The 620 has a nice display of Cadence, VO, and GCT that gives a color coded indication of how well you're doing.  
 
* Like the Fenix 2, the 620 will show and record [[Cadence]], Vertical Oscillation (VO) and Ground Contact Time (GCT). The 620 has a nice display of Cadence, VO, and GCT that gives a color coded indication of how well you're doing.  
 +
* The 620 will provide alerts when a metric is out of range. The alert for [[Cadence]] is really useful and one of my favorite features of the 620. Before the firmware fix for GPS accuracy I'd wear the 620 just for the Cadence alert and use another watch for tracking distance.
 
* Like several other devices, the 620 displays [[Firstbeat| Training Effect]], an indicator of how hard or effective a training session is.  
 
* Like several other devices, the 620 displays [[Firstbeat| Training Effect]], an indicator of how hard or effective a training session is.  
 
* The 620 includes an estimation of the [[Firstbeat| Recovery Time]] before the next workout, just like the Fenix 2.  
 
* The 620 includes an estimation of the [[Firstbeat| Recovery Time]] before the next workout, just like the Fenix 2.  

Revision as of 09:05, 23 November 2014

The Garmin 620 is wonderful running watch. It's much smaller than many comparable watches, but it packs in more features while retaining great usability. It's my top pick for most runners, though if you're on a tight budget, there are other contender's such as the Garmin 310XT or the Suunto Ambit2 R that offer better value for money. The 620 would be my top pick for marathon runners, but it lacks the ability to show your current pace from a Footpod while using GPS for everything else. Having run many marathons, I firmly believe that this is a killer feature, as accurate pacing is essential for a good marathon performance. The 620 is not a good choice for ultrarunners, as its battery life is too short.

The Garmin 620, showing the display of Cadence, Vertical Oscillation and Ground Contact Time. Note that the display is color, but I found the colors muted and not always easy to distinguish.

1 Garmin 620 Pros

  • With the updated firmware, the GPS accuracy is reasonable. It's not as good as the Polar V800 or some of the other watches, but it's okay for most usage.
  • The 620 is small and light, but the display is quite legible for its size. I find it much easier to read than either the Garmin 610, Suunto Ambit2 R or the Garmin 10. (It's a lot better than the Garmin Fenix 2.
  • Like the Fenix 2, the 620 will show and record Cadence, Vertical Oscillation (VO) and Ground Contact Time (GCT). The 620 has a nice display of Cadence, VO, and GCT that gives a color coded indication of how well you're doing.
  • The 620 will provide alerts when a metric is out of range. The alert for Cadence is really useful and one of my favorite features of the 620. Before the firmware fix for GPS accuracy I'd wear the 620 just for the Cadence alert and use another watch for tracking distance.
  • Like several other devices, the 620 displays Training Effect, an indicator of how hard or effective a training session is.
  • The 620 includes an estimation of the Recovery Time before the next workout, just like the Fenix 2.
  • The 620 will cache the locations of the GPS satellites for the next few days, which will reduce the satellite acquisition time when travelling to a new location. In my usage the satellite acquisition was very rapid.
  • The touchscreen works better than any other I've tried while running.
  • There is a prediction of your V̇O2max, which worked well for me, but I would not rely on its accuracy.
  • The 620 will upload your workouts to Garmin Connect via WiFi without needing a computer. It will also link to a smart phone to upload a workout as it takes place, which is nice for folks tracking you during a race, though it means wearing the watch and the phone together.
  • The 620 will cache the locations of the GPS satellites for the next few days, makes for faster satellite lock. However, if you've not connected the 620 to the internet for a few days, the 620 can be painfully slow to acquire a lock.
  • The 620 will not display Heart Rate Variability but it is possible for it to record Heart Rate Variability for later analysis. To enable this recording, you need to download a special FIT file from the firstbeat.com web site.

2 Garmin 620 Cons

  • There is no way of displaying your current pace from the Footpod while using GPS for overall distance and course. While the 620 now has good GPS accuracy, it is not sufficient to give useful current pace information. For situations where pacing is critical, such as running a marathon, a Footpod works better. (Earlier versions of the firmware would always display the pace and distance from the Footpod when it's connected, but this was fixed in a recent update.)
  • The 620 includes an internal accelerometer to give you an idea of pace and distance while running on a treadmill without a footpod. While firmware updates have improved the accuracy, I found it was too far out to be of any use, giving a display that was off by 1-3 minutes/mile. A lot will depend on your running style and how you use a treadmill.
  • There is no map display or navigation, but on a device this small it would be hard to make that useful anyway.
  • The battery life is short for ultramarathons, but it is fine for the most runners.
  • You need to have the new HRM for the new features. It will display Heart Rate and calculate Training Effect with the older Garmin HRM, but not Ground Contact Time or Vertical Oscillation.

3 GPS Accuracy Issues

The Garmin 620 had some well-known GPS Accuracy issues, but this has been resolved with a firmware update. If you are having GPS accuracy issues, then the following suggestions may help.

  1. Make sure your firmware is up to date. The 620 actually has two firmware installations, one for the watch functionality, and one for the GPS. The GPS firmware needs to be at 3.30 or above.
  2. Synchronize the 620 with the Garmin software to update the EPO data which is used to improve GPS startup time.
  3. Leave the 620 in "ready to go" mode with a good view of the sky for at least 20 minutes. There is information (the almanac) that can take 12.5 minutes under ideal conditions to download from the satellites. In theory the 620 should get all of the satellite data from the EPO file, but the almanac might help.
  4. If none of these steps work, do a factory reset.

4 Comparison Table

I evaluate running watches in three distinct ways. Firstly, you can use a watch on its own, without any kind of Footpod. This is probably the most common way runners use their watch, but you miss out on a lot. The second rating is with a standard Footpod that is available quite cheaply. These Footpod's can be reasonably accurate once the calibrated, but calibration is a little tedious. The final evaluation is with the Stryd Footpod, which is vastly more accurate than any other type of Footpod, or and more accurate than GPS. The table below looks at the score, and the value for money of each watch for each of the three conditions. (I’ve also tested the Apple Watch 3, but I’ve not included it in these tables as it’s not really a running watch.)

Review With Stryd Score With Stryd Value for money With Footpod Score With Footpod Value for money Without Footpod Score Without Footpod Value for money Price at Amazon.com
Garmin Epix Review 47 4.5 31 3.9 23 3.4 Error: Could not parse data from Amazon!
Garmin Fenix 5X Review 47 2.9 32 2.3 24 1.9 Error: Could not parse data from Amazon!
Garmin Fenix 3 Review 45 3.8 28 3.1 24 3 Error: Could not parse data from Amazon!
Garmin 935 Review 45 3.6 30 3 22 2.4 Error: Could not parse data from Amazon!
Garmin Vivoactive HR Review 40 4.9 21 3.8 17 3.8 Error: Could not parse data from Amazon!
Garmin 920XT Review 39 4.4 30 4.7 24 4.5 Error: Could not parse data from Amazon!
Suunto Spartan Ultra Review 37 2.6 27 2.3 23 2.1 Error: Could not parse data from Amazon!
Garmin Vivoactive 3 Review 36 4 19 2.9 15 2.8 Error: Could not parse data from Amazon!
Garmin Vivoactive Review 34 5.1 14 3.4 10 3.3 Error: Could not parse data from Amazon!
Suunto Spartan Trainer Review 34 3.9 23 3.7 18 3.4 Error: Could not parse data from Amazon!
Polar V800 Review 33 2.8 26 2.8 22 2.7 Error: Could not parse data from Amazon!
Suunto Ambit2 Review 32 3.9 25 4.3 21 4.5 Error: Could not parse data from Amazon!
Suunto Ambit3 Peak Review 32 3.4 29 4.1 25 4.2 Error: Could not parse data from Amazon!
Garmin Fenix 2 Review 31 2.9 22 2.7 18 2.5 Error: Could not parse data from Amazon!
Suunto Ambit3 Run Review 30 4 27 5.5 23 5.9 Error: Could not parse data from Amazon!
Suunto Ambit2 R Review 30 3.5 23 3.8 19 3.8 Error: Could not parse data from Amazon!
Garmin 235 Review 28 2.9 20 2.8 12 2 Error: Could not parse data from Amazon!
Garmin 620 Review 27 3.8 24 5.1 20 5.6 Error: Could not parse data from Amazon!
Garmin 910XT Review 26 3.9 26 6.1 21 6.7 Error: Could not parse data from Amazon!
Garmin 310XT Review 25 4.6 24 8.3 18 10 Error: Could not parse data from Amazon!
Polar M400 Review 25 4.3 15 4.5 11 4.9 Error: Could not parse data from Amazon!
Garmin 225 Review 25 3.8 13 3.1 9 2.9 Error: Could not parse data from Amazon!
TomTom Cardio Runner Review 25 3.3 10 2 10 2.5 Error: Could not parse data from Amazon!
Polar M430 Review 25 3.2 15 2.9 11 2.7 Error: Could not parse data from Amazon!
Garmin 610 Review 24 3.3 20 4.3 14 3.9 Error: Could not parse data from Amazon!
Leikr Review 10 1 20 2.5 14 2 Leikr ($380)
Epson SF-510 Review 4 0.7 6 2 6 3 Error: Could not parse data from Amazon!
Epson SF-810 Review 4 0.6 6 1.6 6 2.3 Error: Could not parse data from Amazon!
Garmin 10 Review 2 0.3 2 0.6 2 0.9 Error: Could not parse data from Amazon!

The score is the sum of how well each watch can answer the four basic questions (how far, how fast, where are you, what's your cadence), plus some bonus points.

  1. The "How far you've run" will be based on GPS only for "without Footpod" and "with Standard Footpod", but based on Stryd if supported in the "with Stryd Footpod" table..
  2. How fast you're running assumes you're using a Footpod if it's supported, otherwise the rating is 0-2 based on GPS accuracy.
  3. The "Where are you?" is based on various navigation features such as back to start, breadcrumbs, and preloaded maps. For some watches, you have to turn GPS off to get the benefit of Stryd, so those watches have worse "where are you scores" with Stryd than without.
  4. The cadence score uses 1 point for an internal cadence sensor, 2 points for footpod support, 1 point for support from chest strap cadence, and 1 point for cadence alerts.
  5. I give 1-2 bonus points for application support, 1-2 bonus points for data upload, 1-2 bonus points for Optical Heart Rate Monitoring, and 0-1 bonus points for battery life.
  6. Value for money is the score divided by the price (at the time I last updated the table.) Your needs may be different, so you might weight the different aspects of the watches differently, or be basing your decision on different criteria totally. Hopefully this table will give you a good starting point for your decision.

4.1 Score Breakdown without a Footpod

Review Score Value for money6 How far did
you run?1
How fast are
you running?2
Where are
you?3
What's your
cadence?4
Bonus Points5 class="unsortable" |

Price at Amazon.com

Suunto Ambit3 Peak Review 25 4.2 8 3 6 2 6 Error: Could not parse data from Amazon!
Garmin 920XT Review 24 4.5 1 2 7 6 8 Error: Could not parse data from Amazon!
Garmin Fenix 3 Review 24 3 2 1 7 6 8 Error: Could not parse data from Amazon!
Garmin Fenix 5X Review 24 1.9 1 0 9 6 8 Error: Could not parse data from Amazon!
Suunto Ambit3 Run Review 23 5.9 8 3 5 2 5 Error: Could not parse data from Amazon!
Garmin Epix Review 23 3.4 0 0 9 6 8 Error: Could not parse data from Amazon!
Suunto Spartan Ultra Review 23 2.1 8 2 6 2 5 Error: Could not parse data from Amazon!
Polar V800 Review 22 2.7 9 4 3 2 4 Error: Could not parse data from Amazon!
Garmin 935 Review 22 2.4 1 0 7 6 8 Error: Could not parse data from Amazon!
Garmin 910XT Review 21 6.7 5 3 6 2 5 Error: Could not parse data from Amazon!
Suunto Ambit2 Review 21 4.5 4 3 6 2 6 Error: Could not parse data from Amazon!
Garmin 620 Review 20 5.6 3 2 2 6 7 Error: Could not parse data from Amazon!
Suunto Ambit2 R Review 19 3.8 4 3 5 2 5 Error: Could not parse data from Amazon!
Garmin 310XT Review 18 10 7 2 4 0 5 Error: Could not parse data from Amazon!
Suunto Spartan Trainer Review 18 3.4 5 3 4 2 4 Error: Could not parse data from Amazon!
Garmin Fenix 2 Review 18 2.5 1 0 6 6 5 Error: Could not parse data from Amazon!
Garmin Vivoactive HR Review 17 3.8 0 0 2 6 9 Error: Could not parse data from Amazon!
Garmin Vivoactive 3 Review 15 2.8 0 0 4 4 7 Error: Could not parse data from Amazon!
Garmin 610 Review 14 3.9 3 2 3 2 4 Error: Could not parse data from Amazon!
Leikr Review 14 2 5 2 4 0 3 Leikr ($380)
Garmin 235 Review 12 2 0 0 2 2 8 Error: Could not parse data from Amazon!
Polar M400 Review 11 4.9 3 1 1 2 4 Error: Could not parse data from Amazon!
Polar M430 Review 11 2.7 3 1 1 2 4 Error: Could not parse data from Amazon!
Garmin Vivoactive Review 10 3.3 0 0 0 6 4 Error: Could not parse data from Amazon!
TomTom Cardio Runner Review 10 2.5 2 1 0 2 5 Error: Could not parse data from Amazon!
Garmin 225 Review 9 2.9 1 1 0 2 5 Error: Could not parse data from Amazon!
Epson SF-510 Review 6 3 0 0 0 2 4 Error: Could not parse data from Amazon!
Epson SF-810 Review 6 2.3 1 0 0 2 3 Error: Could not parse data from Amazon!
Garmin 10 Review 2 0.9 0 0 0 0 2 Error: Could not parse data from Amazon!

4.2 Score Breakdown with a Standard Footpod

Review Score Value for money6 How far did
you run?1
How fast are
you running?2
Where are
you?3
What's your
cadence?4
Bonus Points5 class="unsortable" |

Price at Amazon.com

Garmin Fenix 5X Review 32 2.3 1 4 9 10 8 Error: Could not parse data from Amazon!
Garmin Epix Review 31 3.9 0 4 9 10 8 Error: Could not parse data from Amazon!
Garmin 920XT Review 30 4.7 1 4 7 10 8 Error: Could not parse data from Amazon!
Garmin 935 Review 30 3 1 4 7 10 8 Error: Could not parse data from Amazon!
Suunto Ambit3 Peak Review 29 4.1 8 3 6 6 6 Error: Could not parse data from Amazon!
Garmin Fenix 3 Review 28 3.1 2 1 7 10 8 Error: Could not parse data from Amazon!
Suunto Ambit3 Run Review 27 5.5 8 3 5 6 5 Error: Could not parse data from Amazon!
Suunto Spartan Ultra Review 27 2.3 8 2 6 6 5 Error: Could not parse data from Amazon!
Garmin 910XT Review 26 6.1 5 4 6 6 5 Error: Could not parse data from Amazon!
Polar V800 Review 26 2.8 9 4 3 6 4 Error: Could not parse data from Amazon!
Suunto Ambit2 Review 25 4.3 4 3 6 6 6 Error: Could not parse data from Amazon!
Garmin 310XT Review 24 8.3 7 4 4 4 5 Error: Could not parse data from Amazon!
Garmin 620 Review 24 5.1 3 2 2 10 7 Error: Could not parse data from Amazon!
Suunto Ambit2 R Review 23 3.8 4 3 5 6 5 Error: Could not parse data from Amazon!
Suunto Spartan Trainer Review 23 3.7 5 4 4 6 4 Error: Could not parse data from Amazon!
Garmin Fenix 2 Review 22 2.7 1 0 6 10 5 Error: Could not parse data from Amazon!
Garmin Vivoactive HR Review 21 3.8 0 0 2 10 9 Error: Could not parse data from Amazon!
Garmin 610 Review 20 4.3 3 4 3 6 4 Error: Could not parse data from Amazon!
Garmin 235 Review 20 2.8 0 4 2 6 8 Error: Could not parse data from Amazon!
Leikr Review 20 2.5 5 4 4 4 3 Leikr ($380)
Garmin Vivoactive 3 Review 19 2.9 0 0 4 8 7 Error: Could not parse data from Amazon!
Polar M400 Review 15 4.5 3 1 1 6 4 Error: Could not parse data from Amazon!
Polar M430 Review 15 2.9 3 1 1 6 4 Error: Could not parse data from Amazon!
Garmin Vivoactive Review 14 3.4 0 0 0 10 4 Error: Could not parse data from Amazon!
Garmin 225 Review 13 3.1 1 1 0 6 5 Error: Could not parse data from Amazon!
TomTom Cardio Runner Review 10 2 2 1 0 2 5 Error: Could not parse data from Amazon!
Epson SF-510 Review 6 2 0 0 0 2 4 Error: Could not parse data from Amazon!
Epson SF-810 Review 6 1.6 1 0 0 2 3 Error: Could not parse data from Amazon!
Garmin 10 Review 2 0.6 0 0 0 0 2 Error: Could not parse data from Amazon!

4.3 Score Breakdown with a Stryd Footpod

Review Score Value for money6 How far did
you run?1
How fast are
you running?2
Where are
you?3
What's your
cadence?4
Bonus Points5 class="unsortable" |

Price at Amazon.com

Garmin Epix Review 47 4.5 10 10 9 10 8 Error: Could not parse data from Amazon!
Garmin Fenix 5X Review 47 2.9 10 10 9 10 8 Error: Could not parse data from Amazon!
Garmin Fenix 3 Review 45 3.8 10 10 7 10 8 Error: Could not parse data from Amazon!
Garmin 935 Review 45 3.6 10 10 7 10 8 Error: Could not parse data from Amazon!
Garmin Vivoactive HR Review 40 4.9 10 10 1 10 9 Error: Could not parse data from Amazon!
Garmin 920XT Review 39 4.4 10 10 1 10 8 Error: Could not parse data from Amazon!
Suunto Spartan Ultra Review 37 2.6 10 10 6 6 5 Error: Could not parse data from Amazon!
Garmin Vivoactive 3 Review 36 4 10 10 1 8 7 Error: Could not parse data from Amazon!
Garmin Vivoactive Review 34 5.1 10 10 0 10 4 Error: Could not parse data from Amazon!
Suunto Spartan Trainer Review 34 3.9 10 10 4 6 4 Error: Could not parse data from Amazon!
Polar V800 Review 33 2.8 10 10 3 6 4 Error: Could not parse data from Amazon!
Suunto Ambit2 Review 32 3.9 10 10 6 0 6 Error: Could not parse data from Amazon!
Suunto Ambit3 Peak Review 32 3.4 10 10 6 0 6 Error: Could not parse data from Amazon!
Garmin Fenix 2 Review 31 2.9 10 10 6 0 5 Error: Could not parse data from Amazon!
Suunto Ambit3 Run Review 30 4 10 10 5 0 5 Error: Could not parse data from Amazon!
Suunto Ambit2 R Review 30 3.5 10 10 5 0 5 Error: Could not parse data from Amazon!
Garmin 235 Review 28 2.9 10 10 0 0 8 Error: Could not parse data from Amazon!
Garmin 620 Review 27 3.8 10 10 0 0 7 Error: Could not parse data from Amazon!
Garmin 910XT Review 26 3.9 10 10 1 0 5 Error: Could not parse data from Amazon!
Garmin 310XT Review 25 4.6 10 10 0 0 5 Error: Could not parse data from Amazon!
Polar M400 Review 25 4.3 10 10 1 0 4 Error: Could not parse data from Amazon!
Garmin 225 Review 25 3.8 10 10 0 0 5 Error: Could not parse data from Amazon!
TomTom Cardio Runner Review 25 3.3 10 10 0 0 5 Error: Could not parse data from Amazon!
Polar M430 Review 25 3.2 10 10 1 0 4 Error: Could not parse data from Amazon!
Garmin 610 Review 24 3.3 10 10 0 0 4 Error: Could not parse data from Amazon!
Leikr Review 10 1 5 2 0 0 3 Leikr ($380)
Epson SF-510 Review 4 0.7 0 0 0 0 4 Error: Could not parse data from Amazon!
Epson SF-810 Review 4 0.6 1 0 0 0 3 Error: Could not parse data from Amazon!
Garmin 10 Review 2 0.3 0 0 0 0 2 Error: Could not parse data from Amazon!

4.4 Basic Features

Review

Released GPS
Accuracy
Weight (oz) Size (CM3) Display (mm) Resolution (Pixels) Waterproofing Heart Rate
Monitor
Cadence Data Upload
Garmin Epix Review 2015 6.2 3.0 48 29 x 21 (609mm2) 205 x 148 (30.3K total) Good (50m) Yes Internal/Footpod/Heart Rate Monitor/Alert Yes
Garmin Fenix 5X Review 2017 5.6 3.5 36 30.5 (round) (731mm2) 240 diameter (45.2K total) Good (100m) Yes Internal/Footpod/Heart Rate Monitor/Alert Yes
Garmin Fenix 3 Review 2015 6.2 2.9 33 30 (round) (726mm2) 218 diameter (37.3K total) Good (100m) Yes Internal/Footpod/Heart Rate Monitor/Alert Yes
Garmin 935 Review 2017 5.6 1.7 24 30.5 (round) (731mm2) 240 diameter (45.2K total) Good (100m) Yes Internal/Footpod/Heart Rate Monitor/Alert Yes
Garmin Vivoactive HR Review 2016 4.9 1.7 19 21 x 29 (609mm2) 148 x 205 (30.3K total) Good (50m) Yes (+OHRM) Internal/Footpod/Heart Rate Monitor/Alert Yes
Garmin 920XT Review 2014 6.6 2.2 35 29 x 21 (609mm2) 205 x 148 (30.3K total) Good (50m) Yes Internal/Footpod/Heart Rate Monitor/Alert Yes
Garmin Vivoactive 3 Review 2017 1.5 17 30.5 (round) (731mm2) 240 diameter (45.2K total) Good (50m) Yes (+OHRM) Internal/Footpod Yes
Garmin Vivoactive Review 2015 5.4 1.3 13 29 x 21 (592mm2) 205 x 148 (30.3K total) Good (50m) Yes Internal/Footpod/Heart Rate Monitor/Alert Yes
Suunto Spartan Trainer Review 2017 7.8 2.0 25 24 x 23 (529mm2) 128 diameter (12.9K total) Good (50m) Yes (+OHRM) Internal/Footpod Yes
Suunto Ambit2 Review 2013 7.6 3.1 30 29 (round) (661mm2) 128 diameter (12.9K total) Good (100m) Yes Internal/Footpod Yes
Suunto Ambit3 Peak Review 2014 7.9 2.9 30 29 (round) (661mm2) 128 diameter (12.9K total) Good (100m) Yes Internal/Footpod Yes
Suunto Spartan Ultra Review 2016 7.1 2.7 38 32 (round) (804mm2) 320 diameter (80.4K total) Good (100m) Yes Internal (Limited Footpod) Yes
Garmin Fenix 2 Review 2014 5.7 3.2 32 31 (round) (755mm2) 70 diameter (3.8K total) Good (50m) Yes Internal/Footpod/Heart Rate Monitor/Alert Yes
Suunto Ambit3 Run Review 2014 7.9 2.5 30 29 (round) (661mm2) 128 x 128 (16.4K total) Good (50m) Yes Internal/Footpod Yes
Suunto Ambit2 R Review 2013 7.6 2.5 30 29 (round) (661mm2) 128 diameter (12.9K total) Good (50m) Yes Internal/Footpod Yes
Garmin 235 Review 2015 4.9 1.5 19 31 (round) (755mm2) 215 diameter (36.3K total) Good (50m) Yes (+OHRM) Internal/Footpod Yes
Garmin 620 Review 2013 7.1 1.5 20 25.4 (round) (507mm2) 180 diameter (25.4K total) Good (50m) Yes Internal/Footpod/Heart Rate Monitor/Alert Yes
Garmin 910XT Review 2011 7.5 2.5 49 33 x 20 (660mm2) 160 x 100 (16K total) Good (50m) Yes Footpod/Alert Yes
Garmin 310XT Review 2009 7.5 2.5 63 33 x 20 (660mm2) 160 x 100 (16K total) Good (50m) Yes Footpod Yes
Garmin 225 Review 2015 6.2 1.5 24 25.4 (round) (507mm2) 180 diameter (25.4K total) Good (50m) Yes (+OHRM) Internal/Footpod Yes
TomTom Cardio Runner Review 2015 6.0 2.2 30 22 x 25 (550mm2) 144 x 168 (24.2K total) Good (50m) Yes (+OHRM) Internal/Footpod Yes
Polar V800 Review 2014 8.0 2.8 31 23 x 23 (529mm2) 128 x 128 (16.4K total) Good (30m) Yes Internal/Footpod Yes
Polar M430 Review 2017 7.2 2.0 24 23 x 23 (529mm2) 128 x 128 (16.4K total) Good (50m) Yes (+OHRM) Internal/Footpod Yes
Polar M400 Review 2014 6.6 2.0 24 23 x 23 (529mm2) 128 x 128 (16.4K total) Good (30m) Yes Internal/Footpod Yes
Garmin 610 Review 2011 7.3 2.5 41 25.4 (round) (507mm2) 128 diameter (12.9K total) Fair (IPX7) Yes Footpod/Alert Yes
Leikr Review 2013 7.3 2.4 25 41 x 31 (1271mm2) 206 x 148 (76.8K total) Fair (IPX6) Yes Footpod Limited
Epson SF-510 Review 2015 4.4 1.7 24 28 x 22 (616mm2) 128 x 96 (12.3K total) Good (50m) Yes Limited Internal Limited
Epson SF-810 Review 2015 5.5 1.8 28 28 (round) (616mm2) 128 diameter (12.9K total) Good (50m) OHRM Only) Limited Internal Limited
Garmin 10 Review 2012 3.8 1.3 33 25 x 24 (600mm2) 55 x 32 (1.8K total) Good (50m) No No Yes



Review

Battery
Life (hr)
Tested Battery
Life (hr)
Extended
Battery
Life (hr)
Charge On The Run? Training
Effect
HRV GPS cache Sensors
Garmin Epix Review 24 17.6 50 Yes (with USB=Garmin) Yes Record Yes Ant+
Garmin Fenix 5X Review 20 23 35 Yes, but can't be worn Yes Record Yes Bluetooth/Ant+
Garmin Fenix 3 Review 20 22 50 Yes (with USB=Garmin) Yes No Yes Ant+
Garmin 935 Review 24 24.5 60 Yes, but can't be worn Yes Record Yes Bluetooth/Ant+
Garmin Vivoactive HR Review 13 13 Yes (with USB=Garmin) No No Yes Ant+
Garmin 920XT Review 24 19 40 No (terminates) Yes Record Yes Ant+
Garmin Vivoactive 3 Review 13 13 No Yes Bluetooth/Ant+
Garmin Vivoactive Review 10 10 10 Yes (with USB=Garmin) No No Yes Ant+
Suunto Spartan Trainer Review 10 11 30 Yes Yes No Yes Bluetooth
Suunto Ambit2 Review 15 50 Yes Yes Record Yes Ant+
Suunto Ambit3 Peak Review 20 100 Yes Yes Record Yes Bluetooth
Suunto Spartan Ultra Review 18 17 26 Yes, but can't be worn Yes Record Yes Bluetooth
Garmin Fenix 2 Review 15 50 Yes (with USB=Garmin) Yes No Yes Ant+
Suunto Ambit3 Run Review 10 10.5 100 Yes Yes Record Yes Bluetooth
Suunto Ambit2 R Review 8 7.3 25 Yes Yes Record Yes Ant+
Garmin 235 Review 11 11 Yes, but no optical HR Yes No Yes Ant+
Garmin 620 Review 10 10 No (resets) Yes Record Yes Ant+
Garmin 910XT Review 20 20 Yes, but no display Yes Record No Ant+
Garmin 310XT Review 20 20 Yes, but no display No No No Ant+
Garmin 225 Review 10 11 10 No (resets) No No Yes Ant+
TomTom Cardio Runner Review 8 6.3 8 No (resets) No No Yes Bluetooth HR
Polar V800 Review 13 24 50 No (terminates) Yes Display Predictive Bluetooth
Polar M430 Review 8 8 8 No No No Yes Bluetooth
Polar M400 Review 8 8 Yes, but can't be worn No No No Bluetooth
Garmin 610 Review 8 8 Yes, but no display Yes Record No Ant+
Leikr Review 5 6.5 5 Yes, but can't be worn No No Yes (few hours) Ant+
Epson SF-510 Review 30 30 30 No No No Yes (few hours) Bluetooth HR
Epson SF-810 Review 20 26 20 No No No Yes (few hours) None
Garmin 10 Review 5 5 No No No No None

5 Navigation Features

Review

Color Maps Breadcrumbs Courses To Waypoint Compass Reverse course Beeline to start Connect IQ Altimeter
Garmin Epix Review Yes Yes Yes Yes Yes Yes No Yes Yes
Garmin Fenix 5X Review Yes Yes Yes Yes Yes Yes No No Yes
Garmin Fenix 3 Review No Yes Yes Yes Yes Yes No Yes Yes
Garmin 935 Review No Yes Yes Yes Yes Yes No No Yes
Garmin Vivoactive HR Review No No No No No No No Yes Yes
Garmin 920XT Review No Yes Yes Yes Yes Yes No Yes Yes
Garmin Vivoactive 3 Review No No No No No No No No No
Garmin Vivoactive Review No No No No No No Yes Yes No
Suunto Spartan Trainer Review No No No No No No Yes No No
Suunto Ambit2 Review No No Yes Yes Yes Yes Yes No Yes
Suunto Ambit3 Peak Review No No Yes Yes Yes Yes Yes No Yes
Suunto Spartan Ultra Review No Yes Yes Yes Yes No Yes Yes Yes
Garmin Fenix 2 Review No Yes Yes Yes Yes Yes No No Yes
Suunto Ambit3 Run Review No No Yes Yes Yes Yes Yes No No
Suunto Ambit2 R Review No No Yes Yes Yes Yes Yes No No
Garmin 235 Review No No No No No No Yes Yes No
Garmin 620 Review No No No No No No No No No
Garmin 910XT Review No Yes Yes Yes No Yes Yes No Yes
Garmin 310XT Review No Yes Yes Yes No Yes No No No
Garmin 225 Review No No No No No No No No No
TomTom Cardio Runner Review No No No No No No No No No
Polar V800 Review No No Yes No No No Yes No Yes
Polar M430 Review No No No No No No Yes No No
Polar M400 Review No No No No No No Yes No No
Garmin 610 Review No No Yes Yes No No Yes No No
Leikr Review Yes Yes Yes No No No No No No
Epson SF-510 Review No No No No No No No No No
Epson SF-810 Review No No No No No No No No No
Garmin 10 Review No No No No No No No No No

For "navigation":

  • Color Maps gives you full color maps, rather like a smart phone, with roads and paths marked out.
  • Track Outline is a display of where you've run, rather like a breadcrumb trail. If there are maps, the outline is superimposed otherwise this is just the outline on its own without any context.
  • Course Outline is an outline of a route that can be downloaded. I've found this useful during ultras or in unfamiliar cities where I've needed to know where to go.
  • Back To Start is a simple arrow point to your starting point, so it won't help you backtrack.
  • Back To Waypoint returns you to a previously marked location using a simple arrow to point.
  • Compass. A magnetic compass can help you orient yourself or the map. Without a magnetic compass you have to be moving for the GPS to give you a sense of direction.


(Older Reviews: Polar RC3 GPS, Soleus 1.0, Motorola Motoactv.)