Garmin’s new GPS running watch tracks heart rate, knows how hard you try

 Navigation system turned wearable manufacturer Garmin debuted a new running watch today that packs in a slew of tracking tools. The high-end Forerunner 735XT features built-GPS tracking, along with built-in heart-rate monitoring, the latter of which presents a number of available analytics, including the user’s “Suffer Score.” Strava Live, the company behind that last bit… […]