This Lenovo k3 mobile phone is very vast.Because of I buy in three mounths back.This mobile phone is a ordnary mobile phone with out any facilities.we can say that it is good saft ware in the mobile phone.In this mobile saft ware is very vast.we can say its signals is the strength for this mobile phone.There is no proper clarity and proper connection setting to this mobile phone.while using the internet the mobile phone get heated and charging levels will gets decreased.so, any one can buy this no, problems.But I faced so, many problems.