The Suunto Ambit 2 S GPS sports watch. Upload routes with waypoints*, heart rate zone training**, GPS track analysis*, download different apps*; create your own app!* Just go to Movescount.com and follow the links. This watch has so many cool features here are a few key ones for you; Full-featured GPS (Si RFIV v 2.2) Altimeter GPS altitude Total ascent/descent** Vertical speed** Altitude graph 3D Compass GPS-based speed, pace & distance Real-time, average & max. heart rate ** Calories ** Heart rate limits ** Heart rate graph in real time ** Peak Training Effect & Recovery Time ** Manual & autolaps Chrono Countdown timer Interval timer GPS track analysis* Heart rate zones* **.. ..and tons more! * in movescount.com **requires use of Suunto ANT / ANT+ heart rate monitor or Suunto Dual Heart Rate Belt (If you look at the Ambit 2 S (HR) you get the Heart Rate Monitor included) The Suunto Ambit 2 S does it all, apart from tell you the temperature & weather trends; but hey, thats what the weather forecast is for right. It is pretty much a sports performance specific watch that can tell you which way to go. Climb, walk, cycle, run, swim and multisports; do whatever the hell you want with this bit of outdoor wrist technology. You can customise the Ambit 2 S with a selection of over 1000 apps that have been made by Suunto or by random other people on Movescount.com....so you can keep track of almost any kind of sports performance based stats that you desire. There is no battery to change, you simply plug it in to your computer via USB (Universal Serial Bus) & charge the little blighter back up again; in time mode you will get 14 days of life. When you plug into the computer-ma-bob you can transfer all your sports data, & see your run/cycle routes on a map & in easy to see graphs. All your lovely precious stats will be easy to share with your friends so you can boast at how well you are doing*. Go on, get out there & train to your heart is content... The Ambit 2 S will also give you an estimated marathon end-time, thatll give you something to work towards.