Garmin Forerunner 55, GPS Running Watch with Daily Suggested Workouts, Up to 2 weeks of Battery Life, Aqua

Easy-to-use running watch monitors heart rate (this is not a medical device) at the wrist and uses GPS to track how far, how fast and where you've run Take the guesswork out of training with suggested workouts of varying intensities based on your training history, fitness level and recovery time Run your best with helpful training tools, including race time predictions and finish time estimates Battery Life - up to 2 weeks (smartwatch mode), up to 20 hours (GPS mode)