As it turns out, one of our loyal readers, who has presented us with solid information before, believes that this is a whole new phone altogether called the LG Liger. The information, he says, comes from code that he discovered. The phone has three different model numbers for three different Korean carriers: LG-F450K, LG-F450L and the LG-450S. These would indicate models for Korea Telecom, LG Telecom and SK Telecom respectively. While our tipster says that this new model could fit in LG's lineup in between the LG G3 and the LG G Pro 2, he couldn't rule out that this could be merely a version of the LG G3 with an FHD resolution screen. Whatever the true nature of this phone, it will capture and playback video in 4K.
The rest of the specs as seen on AnTuTu include a Qualcomm Snapdragon 801 CPU, an Adreno 330 CPU, back and front-facing cameras of 13MP and 2MP respectively, 3GB of RAM and 32GB of native storage.
Thank you, Anonymous Tipster!