Many running watches aren't very interesting to... well, watch. You can't say that for Garmin's new Forerunner 220 and 620, both of which carry one-inch color screens that provide clearer visual cues and new run / walk alerts. Either device will sync data to a PC or phone through Bluetooth, and the 620 (pictured at left) can connect through WiFi. The 620 is also keenly aware of its wearer's abilities. It can gauge peak oxygen volumes, and estimates race times based on likely endurance; an optional companion for the 620, the HRM-Run, measures gait with an accelerometer and suggests days off based on heart rate history. Interested athletes can pick up the Forerunner 220 and 620 this fall at respective prices of $250 and $400. They can also spend $50 more to bundle a heart rate monitor with the 220, or the HRM-Run with the 620.