Mi 4 is a very good android phone. It’s 4 64 gb is a very popular item. I used it for last 3 months and I really satisfied by this product . So I suggested everyone to buy this wonderfull product. It’s touch is perfect . Everyone can easily touch and use it. It’s video quality is perfect. I requested to give headphone with this product.its camera is awesome. After all mi 4 is perfect.