Within the blossoming smart wearables market, the battle for the real estate on your wrist is getting intense. With the Garmin VivoFit, many of us will have our bases covered. It keeps track of your activity levels adequately, and the sleek styling makes it wearable in just about any circumstance. Is the VivoFit comparable to the crop of current wearables, though? We go wrist-on to find out.