Because of the identical dimensions, the secondary card slot doesn’t have to be designed differently, like what has been done for microSD cards. The simplest answer is that it has the same size as the nano-SIM card inside any smartphone today. The question is: What’s so special about it?
It’s available on both the Mate 20 and Mate 20 Pro, and it effectively replaces the microSD slot we’ve become so accustomed to. Aside from introducing a host of flagship features to the freshly minted Mate 20 series, Huawei also introduced a new memory card standard, simply named Nano Memory Card.
