Xensr vs WOO (2); Air time and G force


After establishing the current (un)comparability in jump heights, we promised to get back on some more details. In this post a detailed insight in the relation of the air time and g force measuring at both devices. This shows we have to worry even a bit more and hope that the promised firmware update(s) of the Xensr quickly solves the issues previously mentioned including the inadequate air time registration.

Air time

There is no relation between the air time registrations between the WOO sports and the Xensr. Airtime Xensr en WOO

That is quite strange. We already tested two WOO’s for hang time and found a very stable correlation. Since there must be some sort of relation between jump height and air time we did a check by checking the relation height-air time at both devices.Airtime WOO vs height

Airtime Xensr vs heightThe relation height – air time is as expected for the Woo, but certainly not for the Xensr. There is something seriously off at this point at the Xensr.


The G-force readings are a bit harder to predict, but luckily both devices are correlating a little bit better than the air time, although the absolute numbers are far off. Again at the Xensr there is less of a relation between jumping heights and G-force.g force WOO vs Xensrgforce Xensr vs height

gforce WOO vs height


  1. What about customer service ? Xensr service is shite… Devices constantly break & replacement is non-existent.

  2. Hi Giampiero,
    Yes Woo’s tends to have some problems, but we have been helped by Them each time. So when it breaks down again contact them.
    Ps corners break to our knowledge due to falling and hitting something. Did you drop it?
    We Test Kites

  3. OMG Dave
    you changed 4 times.
    I have changed my Woo 7 months ago, the sensor inside did not work very well
    when you jumped 10 meters this was signed 3 meters and when you jumped 3 meters signed 8 meter . Now i have another woo but after only 10 session with maybe 200 jumps,there are 2 corners almost broke
    what do you suggest me

  4. Hi Jonny,
    Good question.
    practically seen I know the Woo has broken down with a lot people (mine has been replaced 4 times), but they take care of it quickly and without any problems. It seems the last version last longer, months.
    From the Xensr’s durability we know very little. We did receive some alarming emails concerning the customer care service, but you never know if this is an incident or that they are less professional.
    We Test Kites

  5. Hi dave,
    I’m curious about longevity’s for both the sensors, at the end of the day it’s a lot of cash to effectively chuck in the sea at great rates of kts hour after hour, session after session!!
    Looking at xensr’s site, they only have the sensor rated to IPx7!!! This worries me greatly considering what the poor little sensor is going to be subjected to, and what that rating officially protects against.
    Unfortunately i couldn’t find much on the woo to see if it faired any better.
    I don’t suppose you have any info on this sort of comparison? Or have done any tests to this effect??


  6. Hi Dave,

    As I am new to this and trying to get one as a gift for someone. Which one would you recommend more to measure kitesurfing jumps?


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