kiox speed vs garmin speed

[Nicolai Wantzin]

Hi
why is it that my kiox shows 26 km/t but my Garmin Egde1030 only shows 20 km/t.
when i'm on my road bike the Gamin shows right speed compared to others riders.
i have set wheel diameters til 2320mm (29" wheel)
my concern is that the Kiox are not in the right trimm.
anyone have same issues

 

[tobster]

I have also seen slight differences between my Garmin Edge and the Kiox. It hasn't bothered me that much (yet). Losing speed output on my Garmin Edge when going through woods is way more irritating.