This works well with my Samsung Galaxy Stratosphere II. It has a lot of storage space, good for all your videos, music, and pictures. It comes with an adapter so if you wanted you could use it in a spot for a regular SD card, but it really is meant for use in a voice or data recorder, a camcorder, or phone. It is class 10 so it handles recording and playback of HD quality video which is important as newer phones can record that way. Very good card