Lenovo Zuk Z2 Plus 64GB is the best budget phone available recently in the market.A phone with huge 4gb of ram for fast and easy processing of apps.Massive 64GB internal storage which does not need any external sd card.A nice 13 MP camera which even supports 4K video recording.A 5 MP camera in the front will help you to capture excellent pics.This phone comes with excellent updated hardware of qualcomm 825 which is too fast and good even while heavy games.Therec is no problem of heating in the smartphone.
Therefore I would like to prefer you this smartphone as the best in your budget.