iPad comes in three storage sizes: 16GB, 32GB, and 64GB. The term “GB” stands for gigabytes. The more gigabytes you have, the more content you can store on your iPad — apps, HD videos, movies, photos, books, magazines, and more. If, for example, you have a large music library or you frequently download HD movies, it’s a good idea to consider an iPad with a larger storage capacity. If you have a relatively small music or photo library or rarely make or buy movies, an iPad with a smaller capacity may be better for you.