I will recommend you Realme 1. It comes with 6-inch IPS LCD display which exhibits a screen resolution of 1,080 x 2,160 pixels. Under the hood is a MediaTek Helio P60 assisted by 3GB RAM which gives the best performance in the class. The camera setup consists of a 13MP primary camera which can capture very nice images along with an 8MP front snapper.
The RealMe 1 is a great smartphone which comes with a lot of strong features.
You can also check the complete comparison here: RealMe 1 vs Lava Z90