Knock Code seems to be faster than the traditional method of unlocking a screen, as it doesn’t require you to press a power button prior to making a move to unlock the device.
According to ZD Net, LG stated that Knock Code is also safer and easier to use than Apple’s Touch ID. Of course, it’s true that a group of European hackers have managed to bypass Apple’s Touch ID security (see the second source link), but it’s hard to believe that an LG smartphone with Knock Code isn’t hackable as well.
Another highlight feature of the G Pro 2 is its 13MP rear camera with OIS Plus. Reportedly, an LG official declared that “those who use the camera for the G Pro 2 will be blown away.” Well, we’re impatiently waiting to test the camera, plus the Knock Code feature and everything else that the new 5.9-inch smartphone has to offer.
The LG G Pro 2 will be available in South Korea starting later this month, running Android 4.4 KitKat out of the box. The handset will also be released internationally, but it looks like it’s going to hit the US and Europe only starting April.
source: ZD Net, Apple's Touch ID hacked