Disciplines and Devices Required

Discipline (Wing + Kite)	Metric Type	Hardware
Highest Jump	Big-Air	WOO and Smart Watch(Apple/Android)
Total Height	Big-Air	WOO and Smart Watch(Apple/Android)
Longest Airtime	Big-Air	WOO and Smart Watch(Apple/Android)
Total Airtime	Big-Air	WOO and Smart Watch(Apple/Android)
Team Highest Jump	Big-Air	WOO and Smart Watch(Apple/Android)
Team Total Height	Big-Air	WOO and Smart Watch(Apple/Android)
Distance 1 hour	GPS	All Watches and Phones
Total Distance	GPS	All Watches and Phones
Team Total Distance	GPS	All Watches and Phones
Racing/Downwinders	GPS	All Watches and Phones

WOO (dedicated Big-Air sensor)	Apple + Android Watch	Phone + Garmin Watch
Big-Air Measurements Only	Big-Air Estimation + GPS	GPS Only

Big-Air Measurement (WOO sensor)	Big-Air Estimations (smartwatch)
Measured from the board at water level (uniform for everyone) Clear take off and landing detection - makes calculations for Air time and height accurate Every Device uses the same sensors and factory set calibration.	Measured from the wrist (different for everyone) Take off and landing according to wrist movements makes detection less precise and can effect airtime and height accuracy Every Devices uses different sensors and is often calibrated individually by each user.

Note WOO's do not have a GPS receiver and will need to be paired with a watch or a phone if you want Big Air +n GPS metrics.

Breakdown of the 2 types of metrics used in Events.

GPS	Big Air
Distance	Jump Height
Speed	Airtime

Measured with Phones and smartwatches from android, apple and Garmin.

Metric	Definition
Distance	The numerical measurement of the separation between two points, objects, or locations, representing the total length of the path traveled
Speed	The rate at which an object's position changes, measured in meters per second
GPS Track	A record of the path taken, composed of a series of logged GPS points (waypoints).

Measured with a WOO device or estimated with android and apple smart watches.

Metric	Definition
Jump Height	The peak vertical displacement of the athlete's centre of mass (In WOO's case the board) following the instant of take-off.
Airtime	Used interchangeably with "hangtime" refers to the duration a kitesurfer spends in the air, off the water, during a jump. It is the time elapsed between leaving the water (take-off) and landing back on the surface.(landing)
G-Force	A measurement of acceleration, specifically the force per unit mass experienced as weight, rather than a direct measure of gravitational pull. (how hard your board hits the water.) - WOO only

Device	Metrics Measured	Notes
WOO	Big-Air Only	Our recommended device for professional events eg. GKA Big Air Brand Challenge. Why? - Clear take off and landing detection so we can referee, and the measurement method is uniform, so results are directly comparable (fair by design) — identical hardware, identical measurement.
Android + Apple Smart Watch	Big-Air + GPS	Our recommendation for kite club or community building. A large part of the kiting community already owns a smart watch linked to their phone brand. This allows for maximum participation, but possible discrepancies between results, as there is multitudes of different sensor quality and sample rates. You can also pair to your WOO for uniform measurements.
Garmin Smart Watch	GPS Only	While Garmin watches can't record Big Air estimations, they can be paired with a WOO for live on the water feedback of WOO measured jumps. This watch has a long battery life and is much more suited to the tough conditions of kiting. The only set back is that it does not support our Big Air watch estimations.
Phone	GPS Only	The last resort if your participants have yet to invest in a WOO or a watch, but want to join in on the GPS Metrics based disciplines. Always use with a trusted and high quality waterproof pouch.