I had used xiaomi 1s & note the first version, both were good with the price & function, but the best buy with low budget phone is MI 3S Prime, best in look, features function, 3GB of RAM, 32GB internal, too good to install heavy games, images & video, without any low memory issue, heating issue is all the same in all MI phones, problem comes only when the phone is used very rough with many multiple apps it gets hanged & cannot be rebooted, it re boot on its own & take much time, the only worst part is the service of the product at any service center in india is very pain full, take long time to repair or change the product if anything gets wrong, but for overall product performance, look & feel is wonderful.