This mobile Lenovo Vibe K4 note is a good option at price range of 12000-15000.
In this budget this mobile is a best option. But it has some cons
At this price Samsung offer Super amoled screen
Due to which it gives a great battery backup.
But I have been using lenovo k3 note for since 8-9 months.
And I am very dissapointed. As it has very low battery backup. I bought it after I saw the features list of this mobile. But I cant able to use its different feature. Beacause after using 2-3 hours the battery power get low, so it is a very big problem. Otherwise it is a nice mobile.
Lenovo company has to must foccused on the display and also on quality of battery they used on their handsets.