I was reading about the new Android OS which includes a new security feature whereby your phone will only ask for your pin (or other security) if it's not connected to a 'trusted bluetooth'. In other words, your smartwatch. So the moment your phone is more than 10m away, it'll lock. Finally, a reason to own a smartwatch! I know this is an Android feature, but most Android features end-up on Apple phones a couple of years later, so it'll be great when this one appears.