Both have a very small footprint and can fit easily in a pocket, backpack, purse, or laptop bag. The free 3 GB cloud storage space is a very nice inclusion to the Touro Mobile Pro. If you have any extremely important irreplaceable-if-lost data, then you can copy it both to the drive and cloud storage for triple-redundant protection! If 3 GB isn't enough, 250 GB storage is also offered for $49/year.