Icon - Unreliable workout tracking

[DarthVedder]

I'm trying to use my Icon to keep track of my workouts and physical activities, but I find it unreliable.

For example, today I went for a walk/run, and according to google maps, the distance I covered was about 4 miles, while the Icon reported a bit more than 5 miles on my workout. Is there an actual reason for that difference or the Icon is just unreliable for this?

Thanks.

 

[DTPhoto]

Adjust your step distance. Default is based on your height, but your stride may vary.

 

[DarthVedder]

Adjust your step distance. Default is based on your height, but your stride may vary.

I guessed that after looking at the settings, but I just assumed that the distance was calculated using the GPS and not with the steps count, which is very unreliable since not all steps are the same. I walk fast with long strides, but for some reason the phone thought that I was running and calculated the distance using even longer strides.