> When you whip out your phone and start recording that's obvious as hell. Not so, when you do it by a wearable. Not necessarily obvious. You most likely can't

> When you whip out your phone and start recording that's obvious as hell. Not so, when you do it by a wearable. Not necessarily obvious. You most likely can't tell if someone is just holding his phone in his hands, or is recording you. There are apps that don't show a preview or any other clues on screen, so you won't know even if you get to see their screen.