The Garmin Forerunner 620 is a wrist-worn touchscreen GPS running watch featuring ride/race/run activity profiles as well as a recovery advisor, race predictor, and VO2 max estimate to enhance your training. When used with the separately sold HRM-Run monitor, the 620 can also show your cadence, ground contact time, and vertical oscillation. For indoor training, the built-in accelerometer tracks distance, so you don’t need a separate foot pod. The Forerunner 620 also has a rechargeable battery and can be used for swimming.