No need to embark on a strict exercise regime. This simple wrist-worn activity sensor monitors your day to day movements and shows you how many steps you take as you pop to the shops or do the dusting, for example. If it looks like you could do with being a bit more active it's easy to set yourself achievable goals and find ways to add more walking opportunities to your day. Just climb the stairs a couple of times or leave the car at home once in a while and it's amazing how the steps soon mount up!