I love the promise of activity trackers, that you can improve your health and fitness with the power of metrics and technology. But none of the trackers on the market today can really help to change your life in a significant way.
That's because they're all missing one thing.
Take one step forward and one glance back - I suddenly realise I've been a tech journalist for seven years. A tech journo's life is interesting, seven isn't long, isn't short, and I've learned a few tidbits along the way. Want to hear?