Photo: Spencer Higgins
The big numbers and three-button interface let you check training data without breaking stride. Stuck on the treadmill? The included foot pod (not pictured) works indoors and is almost as accurate as the GPS. It all means you can focus on running. Yet the simplicity belies a high IQ. Use the USB connector to upload pace, distance, and route data. Online training programs and heat maps tell you when and where to run; in-watch alerts remind you to.
WIRED Syncs with Polar heart-rate straps for pulse-based calorie counting. Foot pod auto-calibrates via GPS. Just 16 mm thick and 66 grams.
TIRED Too simple for competitive athletes. No heart-rate zones. Must upload for elevation data.