Google with Android 4.0 Ice Cream Sandwich introduced a new way to unlock a device using facial recognition technology. It doesn't always work as intended (especially in low-light situations), is taxing on resources and can be hacked. Still, face unlock is one of the "wow" capabilities Android phone owners like to brag about.
Samsung took facial recognition to the next level with the Galaxy SIII smartphone. The device tracks eye movement, preventing the screen from going dark when you’re looking at it. According to a patent filing published Thursday by the United States Patent & Trademark Office (USPTO), Apple is researching automatic facial analysis to automate locking and unlocking of future iPhones, iPads and iPods...