Track your runs, gym workouts, outdoor recreational activities, bike rides, laps in the pool, and more with the Garmin Forerunner 645 Sport Watch. For added motivation Garmin has developed their own online community, simply download the Garmin Connect Mobile app and sync your data to see how you stack up against others within the social community. Not only does the Garmin Forerunner 645 just track your activities, it provides deep analysis and insight so you can digest the data. Customizable data pages and activity profiles make it easy to display your data the way you want to see it. You can easily see your GPS speed and distance, your interval training and advanced workout statistics, your VO2 max., your training status, your aerobic and anaerobic training effects, the activity history on the watch, and much more. In addition to intuitive analysis of your activities, the Garmin Forerunner 645 features a number of heart rate features including HR zones, HR alerts, HR calories, % HR max., % HRR, recovery time, auto max HR, and HR broadcast. Did you leave your wallet at home while on that run? The Garmin Forerunner 645 has you covered with the Garmin Pay contactless payment solution, which allows you to just tap your watch and go. You can also receive text messages, social media updates, emails, and more right from your sport watch.