$250 (woo) plus apple watch $350 = $600.
$0 Xenser app plus apple watch $350 = $350.
https://www.gps.gov/systems/gps/performance/accuracy/For example, GPS-enabled smartphones are typically accurate to within a 4.9 m (16 ft.) radius under open sky
https://www.gps.gov/systems/gps/performance/accuracy/On May 11, 2016, the global average user range error (URE) was ≤0.715 m (2.3 ft.), 95% of the time.
Great post! You are spot on about GPS and why GPS doesn't work for jump heights. Which is why all of the kitesurfing sensors use inertial sensors to provide a jump height value.
Meaning that we don't use GPS for jump height calculation. Sorry for not being clear on the earlier reply.Largorn wrote: ↑Sun Nov 12, 2017 6:17 pm
Thanks for the response. But doesn‘t that mean that the jump height feature of your Sessions app is broken by design? Or does it use inertial sensors instead of GPS? If yes, how do you differentiate arm / body movement from movements that are actually connected with the jump? I thought that this is the reason why the sensors are placed on the boards, not the body.
Good luck measuring your jumps with the watch alone.