I am aware of this specific model. It comes with the processor 'snapdragon 800', the same processor which the regular LG G2 comes with.
In my opinion, the LG G2 is still better than this model. Obviously, I do have reasons. The first is better design and ergonomics. The second is the camera, even though both have 13 MP sensors, the camera of LG G2 comes with OIS which results in better photography specially in low light. Lastly the screen-to-body ratio of the G2 is greater compared to S4. On the record, I am not a LG fan-boy.
Now comes the big question, Is this specific model of S4 easily available in Pakistan for 17,000 to 18,000 rupees? Well, the answer in NO!