I don't quite understand how can you even compare a Pebble which does not really work with Windows Phone to something that does? I really liked Pebble steel as an upgrade to it's already decent set of smartwatch functionality but I cooled off when many months passed without even a hint that it may be supported on Windows Phone. Later I started thinking that step counting is too basic for fitness tracking (my phone does it on it's own) so a heart rate monitor might be useful. That's why I'm evaluating to buy the band, but in reality it's the only smart wearable that properly works with Windows Phone.