The Microsoft Lumia 640 has a storage of 8 GB, which additionally can be extended (microSD, microSDHC, microSDXC). On the back it has a camera with a maximum resolution of 8 megapixels. The front camera provides a resolution of 0.9 MP.
The Lumia 640 has a 5 inch IPS LCD display with a density of 294 ppi. In the smartphone a Quad-Core processor (Qualcomm Snapdragon 400) is used together with 1 GB of RAM. For specialists: To calculate the graphics a Yes is called into action.