Wearables are all the rage, with people using on-body devices such as smart watches to monitor everything from the number of steps they take in a day to their heart rate, stress level, blood pressure, hours slept, and a lot more, depending on how much one is willing to fork out. If this is what has humans hooked, how can their best friend be left behind? Pawfit, a division of the U.K.-based tracking innovations company...