I don’t think that this is the best smartphone under 10k it had 2gb of RAM and 16gb of ROM with 1020p 5.5 inch display on the other hand Redmi 3s prime cost of 9k approx. It has 3gb of RAM and 32gb of ROM it has 720p 5 inch display. I think Redmi 3s prime is the best smartphone under 10k but if u want bigger display you should use redmi note 3 but if u want multitasking you should use redmi 3s prime.