Blind and partially sighted people can use tablets and smartphones with confidence. Use the links under the "iOS devices" menu, to find out about the screen readers and magnifiers that are available for iOS devices.
If you have questions about using a tablet or smartphone, try the BCAB technology forum. It's an email-based forum for discussing all kinds of technology, so it's a great way to ask questions of blind and partially sighted people who use tablets and smartphones. It's free to join, just create an account.