Apple Watch For Dummies. Marc Saltzman

Watch can tap different patterns based on who’s reaching out to you (such as two taps for your spouse and three taps for your boss). Or perhaps the haptic pattern tells you what the information is: one tap for the time on the hour, four taps for a calendar appointment, and so on. Neat, huh?

      In the near future, Apple Watch’s haptic feedback may let you know about important health information, perhaps working in conjunction with sensors. Imagine if someone living with diabetes could get a haptic tap to tell them it’s time to use insulin, based on their body’s blood-sugar levels.