When creating or joining a discipline it is important to understand which metrics are used and which devices are compatible for each metric.

Below we describe the 2 types of Metrics (GPS & Big-Air) that all the disciplines are based on, what each device measures, and break down each discipline based on the main type of metric it falls under and the device needed to record it.

1. GPS (free-ride/racing)

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).

2. Big-Air

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.
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.

Hardware (different devices you can use depending on your main goal)

Hardware	Metrics measured	Notes
WOO	Big-Air Only	Our recommended device for professional events eg. GKA Big Air team challenge. Why? - Clear take off and lading 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 more accurate 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.

WOO	Apple + Android Watch	Phone + Garmin Watch
Big Air Measurements Only	Big Air Estimation + GPS	GPS Only

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