I bought this mobile from flipkart almost 5 week. The phone seems very bad. The battery life about 3 hour, the apps run verh badly.ram performance very bad. While playing games . many time game hang or shut down . Games performance not good .another the camera it has 13mp camera , it take not good picture, picture quality not great.front camera also not good .picture quality was poor.note 4 battery take long time to full charge 3 to 4 hour to full charging time .k4 note wifi is not working properly its very bad wifi range.k4 note display is also very poor quality.lenovo should work more on its Ui to provide better experience