Handheld devices that function much the same as cell phones. They come in a variety of shapes to accommodate the user, from visors, to gloves, or small slabs of glass. Crystones connect to The Lattice wirelessly (without roots!) and allow for quick communication between devices.

Instead of phone numbers, crystones register energy signatures, no two of which are the same or can be duplicated. A number of features can be accessed through a crystone, such as video recording, photos, and data storage. Not to mention plenty of games that are developed for entertainment. Unlike cellphones, programs on a crystone cannot transmit data without an operator to do it manually.

Some like to house their familiars or similar spirits inside of their crystone to help automate certain processes.