Polar Ignite wants to charge you up for your next big workout

Polar is beefing up the wearable ranks with the Ignite, a GPS sports watch that factors in sleep quality to help you train smarter. Sitting underneath the Vantage V and Vantage M watches Polar launched last year, the Ignite can track up to 100 activities (indoors and outdoors) and included Polar's new Precision Prime optical…