Kitesurf Jump height measurements......... on your smartwatch?

4 years ago
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zlatko
zlatko
68 posts
68 posts
3 May 2024 1:25am
dachopper said..
...Yeah, on watch calculations is an artform. Particularly with Garmin as they have extreme battery saving measures which limit the calculations.


I noticed that Surfr drains watch battery heavier than KJ Pro. And session data transfer takes ages after Exit&Save.
zlatko
zlatko
68 posts
68 posts
23 May 2024 4:29pm
dachopper said..
...Yeah, on watch calculations is an artform. Particularly with Garmin as they have extreme battery saving measures which limit the calculations.

I got new firmware v27.00 for my Fenix6, which amongst the other changes states "Added support for 100hz sensor rate for CIQ apps.". I wonder if that higher sampling rate will help for better jump estimation accuracy with KiteJump Pro?
dachopper
dachopper
WA
1802 posts
WA, 1802 posts
23 May 2024 9:08pm
zlatko said..

dachopper said..
...Yeah, on watch calculations is an artform. Particularly with Garmin as they have extreme battery saving measures which limit the calculations.


I got new firmware v27.00 for my Fenix6, which amongst the other changes states "Added support for 100hz sensor rate for CIQ apps.". I wonder if that higher sampling rate will help for better jump estimation accuracy with KiteJump Pro?


:)

Maybe.....,... But in any case you will already see the effect.

:)
zlatko
zlatko
68 posts
68 posts
24 May 2024 12:11am
Hope to be able to test in coming days and will write back! :)
zlatko
zlatko
68 posts
68 posts
26 May 2024 4:32am
Had my first session since the update - I don't know if this is the new 100Hz sampling rate or change in the algorithm, but jump detection felt different. Previously it was detecting every little pop(1.0-1.5m) and was overestimating the height, while today only when going over 2.0m jumps were detected and jump height estimation was restrained and pretty spot on according to my inner gut :)
NorthernKitesAUS
NorthernKitesAUS
QLD
1084 posts
QLD, 1084 posts
27 May 2024 10:39am
Inner gut is the best Woo - really.
dachopper
dachopper
WA
1802 posts
WA, 1802 posts
27 May 2024 12:24pm
zlatko said..
Had my first session since the update - I don't know if this is the new 100Hz sampling rate or change in the algorithm, but jump detection felt different. Previously it was detecting every little pop(1.0-1.5m) and was overestimating the height, while today only when going over 2.0m jumps were detected and jump height estimation was restrained and pretty spot on according to my inner gut :)


Glad you liked it. Jumps under 2 to 3 metres are disabled, as when I did my comparison testing with the other devices, I discovered they can be off by miles, and so were my calculations occasionally. Since removing them I've not had any reports of and large phantom jumps also.
dachopper
dachopper
WA
1802 posts
WA, 1802 posts
19 Apr 2025 10:14pm
Version 5.4 released today.
Bugfix - Had a mysterious bug that caused very infrequent crashes that I suspect I have fixed.
Increased watch compatability,
Significant decrease in memory use.

apps.garmin.com/en-US/apps/ca00d0a1-542c-40eb-9ba5-869c8308d865
dachopper
dachopper
WA
1802 posts
WA, 1802 posts
25 Apr 2025 9:04pm
Beware - something funny happend the first time I used the new version , and to other people, first start it immediately crashed, but then subsequent uses it has been fine. I think it's related to installing the latest version, but honestly I've no clue why or what caused it.

On the water latest test today in 25 - 30kts against the WOO4. Not bad for 10 bucks.





zlatko
zlatko
68 posts
68 posts
13 Oct 2025 3:14am
Hi Nicholas, I would like to ask you have any plans to port the KiteJump app to Fenix 8? I have upgraded to F8 and now missing it as it works way better than Surfr for me :)
Thank you in advance!
dachopper
dachopper
WA
1802 posts
WA, 1802 posts
14 Oct 2025 8:35pm
Hi,

Done a few days ago, I update it periodically - Fenix models added

&w=96&q=75f?nix? 8 AMOLED (43mm)&w=96&q=75f?nix? 8 AMOLED (47mm/51mm), quatix? 8 AMOLED (47mm/51mm)&w=96&q=75f?nix? 8 Pro, f?nix? 8 Pro - 47 mm, AMOLED, f?nix? 8 Pro - 51 mm, AMOLED, f?nix? 8 Pro - 51 mm, MicroLED&w=96&q=75f?nix? 8 Solar (47mm), f?nix? 8 Dual Power (47mm)&w=96&q=75f?nix? 8 Solar (51mm), f?nix? 8 Dual Power (51mm)
zlatko
zlatko
68 posts
68 posts
14 Oct 2025 9:02pm
Thank you! Just installed it on my F8! Will report back how it behaves when I have a chance to try it!
zlatko
zlatko
68 posts
68 posts
17 Oct 2025 12:23am
Just tested KiteJump PRO as ported for Fenix8 in underpowered conditions - way more consistent and precise than Surfr on the same HW! Not a single missed jump, where Surfr often freezes for 3-5 minutes not detecting anything! Just a single outlier jump for 74 of them! After landing a jump I say to myself "That was around X.Ym high" and after watch does its "magic" the height it calculates is usually within 0.5m from my gut feeling. It's amazing how a single developer can achieve better results than an entire company! Well done @dachopper1 !!! It's a pity that KiteJump PRO will never reach the popularity of Surfr, although being more precise and consistent! :(
dachopper
dachopper
WA
1802 posts
WA, 1802 posts
15 Feb 2026 11:44pm
I have finally gotten around to finishing a beta companion for this watch app - for internet ( it's web based rather than a specific phone or watch ).

PM me if you'd like to test it out.
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