Lenovo vibe k4 note is pretty good handset at the price they are offering it. Revolutionary part about the lenovo mobiles are their speakers. A speaker given in the front is too good to listen and it also gives the much better look instead of back speaker.
If we speak about the chipset they are giving to run the whole module it is Mediatek processor. Which are not well known for giving better sound and entertainment experience , but lenovo has steel managed to give DOLBY digital sound so that is quite appriciable. Screen size is as usual 5.5 inch biggest at the price range which is lenovo doing from very earlier.
Display is also good which is IPS LCD type. Which gives you better experience of watching movies with 16M colours from any angle less then 180. Camera is good better then lenovo k3 note which I didnt liked much. It gives stable images at night too it didnt get blurred. Bettery is not about to have any problems it is running handsomely whole day. So a perfect value for your money. But I would prefer the new model lenovo k5 vibe whose price is 12.5k in India.