Jeremy Vandehey points out in “This is your brain on mobile” that buying a watch can reduce the amount of time you spend distracted on your smartphone, since you won’t be whipping it out to check the time, only to repeat a few min later because you’ve forgotten. (this totally happens to me!) I’m holding out for the rumored iWatch before making any purchasing decisions though.

You’ve successfully subscribed to 🧑‍💻 Funky Penguin
Welcome back! You’ve successfully signed in.
Great! You’ve successfully signed up.
Your link has expired
Success! Check your email for magic link to sign-in.