Digit

Digits (Holographic Magitech Information and Communication Transmitter) are Holographic communication devices, developed and distributed by Tabaqui. They consist of a micro chip that inserts itself into an individual's wrist and dissolves into a bit code. To use the Digit, the user has to tap their wrist, whereupon a screen will appear. The user can solidify the screen by taking it into the hand for a handheld device.

The Digit can be used for calls, text messaging, maps, video, photography and teleports to synced locations. A contact list of all Players containing profile images (can be set by the individuals), birthday information and Digit numbers is available to all Players, as well as a group chat that all can access.

To sync a location, the user has to visit the desired location at least once and sync their device to its coordinates. They are then able to return to it via teleport any time. A user may also sync a residence as home point. Owners are able to give others 'spare keys' to their house by syncing their own house to another person's Digit.

Bi-Digits
Digits for Non-Players that can be used for communication, but lack the group channel, teleportation and screenshare.

TabApp
An application on the Digit that features a small Tabacopy assistant, invented by Tabaqui and AMADEUS after the Calamity. The app assiastant can be customized according to a Player's preference.

Tabacom
Syncing devices that allow a community to choose to sync themselves to all Digits of the Players for easy access. Residents cannot use the Tabacom to teleport.

Hen House Protocol
A magic cast by Tabaqui which makes them capable of summoning every Digit owner back into the City at once.

Quotes

 * "This is a device that I have created for Players using a magic type referred to as Magitech. It combines magic with an aspect you might not be familiar with, therefore I shall simply refer to it as 'science'. The object that I cast into your wrists is an item capable of holding a binary code, in other words, it is storing magic and making use of it through artificial intelligence. The device I am holding is what I call a Holographic Magitech Information and Communication Transmitter, but you can call them 'Digits'. Because that sounds cuter. [...] The Digits are enabling for you to speak with, or write messages to one another over great distances. On top of that, it is able to sync itself to locations once it has been accustomed to an area's latitude. It is able to take you from wherever you are, back to any such location, whenever you desire. I am hoping that they may work in Trials, but the chances are only at around 20%. Either way, they should make it possible for us to beat the Trials much easier, as we will be able to communicate and take care of each other" - Tabaqui explaining the Digits (The Floating City, October 23, 2018)