Garmin has announced the Forerunner 220 and 620, adding color screens and a host of new features. At 1/2″ thick and around 1-1/2 ounces, the company calls them two of their thinnest, lightest sportwatches yet. Both watches feature Bluetooth Smart technology for live tracking (via your smartphone) and wireless upload to Garmin Connect or the Garmin Connect Mobile app.