Runtastic PRO - Android Apps on Google Play. I appreciate that Sony provided me with a free copy of Runtastic PRO with the SmartWatch 2. If I used it, I would save $4.99. However, who in Sony marketing thought it was a good fit for SmartWatch 2 buyers? Why would somebody who is too lazy to take their phone out of their pocket to check emails, would suddenly decide to start running everywhere? Okay. I jest. We geeks just like gadgets that make our life navigation cooler and easier. But, I might get Runtastic PRO, and not just because it is free. Modern wearable devices are capable of many things, and this one actually can measure heart rate, pace, speed, calories expended, and other stuff. Hey, I might not become a runner; but, I can certainly walk. Which brings me to the next point. Go to Google's PlayStore, and search for SmartWatch apps. There are dozens and dozens of them, and they are pretty useful. Sony, you hit a home run with this thing.