If you don't have sufficient storage space on your smartphone, you'll usually be able to upgrade it with a MicroSD memory card. However the differences between microSD cards are not always as clear as they should be. In order to shed some light on this matter we're testing 48 microSD modules with a capacity between 32 and 200 GB and support for the UHS-I bus in this review.

MicroSD cards are impressive because you can store a huge amount of data on such a tiny card: the model with largest capacity in this test has a capacity of a whopping 200 GB and models a storage capacity with 512 GB have already been shown off. However since the cards are so small, which makes installing and uninstalling them quite tedious, we consider them a semi-permanent storage expansion for a device that doesn't come with a lot of storage space by default. The amount of such devices is increasing every day due to the rise of mobile devices.