This phone have no lag while playing games, vedio.sound quality of this phone is preety good not supirior .this have lots of hidden featues same as redmi note 3 . difference is only that this phone is having 4gb ram thats it otherewise all feautures are same comaparision to note 3 .style and designing is preety good camparison to note 3. The only deafault for this company is service centre problems and price for this phone is good .this company never give headphone because they think that at this value for money is enough .