Pavlok
Many wearable devices have features designed to improve our habits: Th e Apple Watch reminds users to stand up once an hour , and Fitbits show you how far you’ve walked each day, for instance. Pavlok subscribes to a different type of motivation: pain. The $179.99 wristband zaps your wrist when you engage in a bad habit, like smoking or cracking your knuckles. The goal? Getting you to associate that habit with a nasty shock, making you do it less often. Wearers can control the intensity of the shock, which ranges from a small buzz to a truly uncomfortable zap.
