Sony Xperia tipo dual duel is the worst phone I have ever ever used in my life time. The cost price we have to incure to by this phone is much much higher then its actual worth in todays mobile Era one can easily buy phone with such specifications in just 3 to 4 thousand rupees. Its processor is not good it has just 4gb internal memory and in this 4gb they just provide you 1gb for applications which is very low. If I talk about its speed it is very slow phone you cannot do multitasking in this phone. In my opinion it is a very bad phone