This is how the Minecraft watch Gameband works

In the following GRTV Quicklook video Magnus and Dóri take a look at the Gameband + Minecraft, a Minecraft themed watch that let's you bring your Minecraft world and mods with you wherever you go.

The device, built in collaboration between Now Computing and Mojang, is actually a USB drive shaped like a wristband, and you can connect it to your current Minecraft game in order to save and carry around all your mods (this can't be uploaded to the cloud), saved stuff and creations, then loading then anywhere else. Plus it has some really fancy pixel-art led decorations!