My alarm goes off at… …6.15am, if — on the rare occasion — one of my five children (or my body clock) fails to beat the alarm to it…. ‘Wow! This guy is a real inspiration,’ I hear you say. ‘Focused on clocking up 20,000 steps in no time.’Alas, no. The primary function of my Fitbit, all too often, is its ability to incessantly alert me to emails received or meetings to attend, without my constantly having to glance at my phone.