Just one word for oneplus 6 , it is simply beast the base model comes with 6gb RAM/128gb rom and the highest model comes with 8gb RAM/256gb rom . Just think laptops comes with 8 gb of ram nd here smartphone is coming with 8gb ram, it is great with no lags . The display is 6.28 inch with FULLHD+ display and both the cameras are good rear dual camera with 20mp+ 16mp which is great in photography . Atlast if you have that much budget of 39999 rs then you can blindly go with oneplus 6 and the 256gb model comes in 44999 . Thank u