I am looking to buy a new dual sim android mobile with at least lollipop in 6000-8000 Rs. range. Can you guys suggest me some models with normal battery timing without buggy software and stable operation. It should have quad core with 1 GB RAM for smooth user experience and no hang up or lag when switching apps. Camera quality is not a priority but it would be nice if it get frequent OTA security updates like Samsung phones. I know you can only get Q or other local brands in this range but there are so many models in this price range it is difficult to pick which one is better.