Perhaps most importantly the Staaker is much faster. I think the top speed is twice that of the Lily, which could never keep up with an above-novice person skii

Perhaps most importantly the Staaker is much faster. I think the top speed is twice that of the Lily, which could never keep up with an above-novice person skiing/surfing/snowboarding/biking. Also the tracking is far beyond anything that's possible with machine vision, like I said it's based on a radio transmitter unit / controller that you keep in a pocket. The Staaker guys have been field testing with some of the world's best extreme sports athletes over the past year. It's also more expensive than the Lily and the GoPro Karma, at MSRP $1700 ($1100 if you order one now, GoPro not included at either price) it's targeting the semi-pro market more than the competition is.