The device lets you track your runs in detail via the Rossignol and PIQ apps, giving you a readout of your best turn, jump and overall PIQ score. Of course, your time is what counts, but it should be handy for skiers looking to improve specific skills. As with any tracker these days, there's also the social factor, as you can put your performance up against your pals or even pro racers around the world. We've seen other ski sensors like the Trace tracker, but PIQ says its model is the lightest one out there. It's now up on pre-order for $149, and if you already have a PIQ golf or tennis sensors, you can get the required strap as a $49 upgrade.