Do You Think This Explains the Paradox?

It seems paradoxical that you'd use a device like this and actually gain weight. It's one, it's not not accurate enough, but a that people over compensate. You increase your activity, people don't realize they get hungrier,. They're also going to increase what they consume. And so in fact, i'm less active the rest of the week end than i would be if i wasn't treateg for the marathon. E, and that you burn a depressingly small number of calaries running 20 miles - especilly as you get. I mean,  it's really so a hand so do you think this explains the paradox?