I have bought redmi note 4 from Flipkart 15 days ago.when I read the reviews of seller on Flipkart it was really bad . people saying I got defect peace, no replacement, etc.i got my phone in excellent condition and is working excellent, some people have problem with battery .it is showing in the app 4000 mah but if u install cpu z then it will show the correct mah ! tysm for reading this .