Steps x Avg step length < Distance???

[gkaempfer]

Quite consistently I think that the number of steps reported for a run is way too low.
Yesterday I did a 30km run. In the app the report counts:

Distance: 30.13 km
Steps: 21800
Avg. step length: 127 cm

But…

21800 * 127 = 27.69 km

So where did almost 10% of my run go? Did I actually make more steps? Longer steps? A normal rounding error? Did I fly 10% of the distance?

Can someone please explain this?

[enriqueescoms]

@gkaempfer said in Steps x Avg step length < Distance???:

Did I fly 10% of the distance?

Can someone please explain this?

It would be cool to think that, like Red Bull, Suunto gives you wings!

[sartoric]

@enriqueescoms
in fact they do
https://emea.suunto.com/en-gr/products/suunto-wing-black

[ChrisA]

@sartoric

[enriqueescoms]

@sartoric

[VoiGAS]

Interesting, could it be that step lenght is measured with the Movement-Sensor (don’t know the correct word) and distance with GPS?

[gkaempfer]

@VoiGAS I assume that the issue is something like that. However, under the assumption that GPS is accurate, especially multi band which I used and is supposed to be very accurate, I would think that step count could probably be corrected by a better algorithm (assuming occasional measurements would miss a step, measure double air time or some other artifact).

[jjpaz]

@gkaempfer said in Steps x Avg step length < Distance???:

Quite consistently I think that the number of steps reported for a run is way too low.
Yesterday I did a 30km run. In the app the report counts:

Distance: 30.13 km
Steps: 21800
Avg. step length: 127 cm

But…

21800 * 127 = 27.69 km

So where did almost 10% of my run go? Did I actually make more steps? Longer steps? A normal rounding error? Did I fly 10% of the distance?

Can someone please explain this?

According to my last activity data, Race 2:

Distance: 9.02 km.
Steps: 8736
Avg.step length: 101 cm

8736 * 101 = 8.823 km

Same activity, Race S:

Distance: 9.08 km.
Steps: 8743
Avg.step length: 103cm

8743 * 103 = 9.005 km.

WOW.

Maybe this is also related to my “Race 2” cutting distances isssue.