Metro pcs 4G Mobile Hotspot
Metro pcs has quite a few devices that are now equiped with a 4G mobile hotspot. To be able to use this feature you will have to be on either the $50 or $60 plan and the mobile hotspot is a $10 add on. The limit's are explained in the video's below.
Here's the data usage chart as well to give you an idea of how fast the limit would be hit.