Garmin Forerunner 935 Running GPS Unit ($372)
"Garmin's newly released Forerunner 935 GPS watch has a much-needed battery life improvement compared to its predecessor, the Forerunner 645, my current watch of choice. For any marathoner, triathlete or data nerd (current or aspiring), Garmin records so much data. During a run or swim, it shows your pace, distance, ascent and heart rate. After, those metrics and others are available in convenient-enough graph formats so you can watch how your heart responded to that gruesome hill. Plus, the watch connects to Strava so your friends and family can cheer you on, or in my case, comment on your general lack of activity in the month of September. (My dad: 'Tara, did you switch to a new, cooler app? Oh, so you've just been sitting on the couch?')" — Tara Kalmanson, Sr. Product Manager