LG Gx officially announced in Korea19
Some of the features on the model include Smart Day which provides the user with information on the lock screen such as time, weather and any scheduled appointments. QRemote allows you to use your phone as a remote for many different devices. You can also awaken the phone by tapping on the screen twice, a feature known as KnockOn. The device will be offered in black and white.
LG is pricing the phone at 850,000 to 890,000 Korean Won ($808.35 USD to $846.39 USD). If our Korean translation is right, it looks like the phone will launch in early January and will be an exclusive for LG U+ customers. And yes, the specs nearly match those of the LG Optimus G Pro. The difference is some of the new features added to the device, some of which are coming from the current flagship LG G2. For example, the "knock on" feature on the Gx is taken directly from the LG G2.
Thanks, Anonymous Tipster
source: LGKorea (translated)