Sony Xperia XZ Premium RAM and Storage

Sony Xperia XZ Premium was launched on June, 2017 and 

this smartphone comes with 4 GB RAM with 64 GB of internal storage which is expandable up to 256 GB via a microSD card. 

4 GB is equal to 32.000 Mbit. 

And also 32.000 Mbit is the same as 32 Gbit.