The Xiaomi redmi note 4 comes with 4GB ram anf 64GB rom. It is of 5.5 inches of screen.Its memory can be expandable upto 128GB. Android version - Marshmallow . It comes with also dual sim , fingerprint sensor and 4100mah battery life which is very good. Its rear camera is of 13MP and dual LED flash and front camera is of 5MP. So, overall its a great phone to use .