I'm debating getting a fitbit flex. I've been looking for a while. I did initially want a jawbone up24 but at over £120 it's just silly money. However the fitbit has good reviews and comes in at half the price. Currently in argos at £10 off too. Does anyone have one and do you find it complements SW? I'm really sedentary and would hope that it would shame me into moving a bit more so I can lose this last half a stone or so to hit target.