I’ve created a website just for browsing the constitution on mobile devices.
It’s VERY basic HTML, so it should work on every single device and browser ever made that reads HTML.
There are no images and most pages are only 2 KB in size, with some as large as 4 KB in size.
On the downloads page is a pdf of the entire constitution that can be printed out on both sides of an 8.5″ x 11″ piece of paper.
All of the text is copied and and pasted directly from the archives.gov site.