This phone offers much more than it’s value. The screen size is of 5.7 inches with a QHD display. The resolution is 1440 x 2560 and the pixel per inch comes around 520. The camera is of 21 mega pixel which is capable of shooting videos at 2160p@30 fps.
The front facing camera is of 5 mega pixel. The Chipset in this phone is Qualcomm Snapdragon 808 and the GPU is Adreno 418. The internal storage is 64 GB which can be further expanded to 128 GB. It has 3 GB of RAM. In my experience I never felt that the phone was lagging or something like that. But the phone was heating like a molten Lava. But this heating issue was resolved with the Marshmallow update.