Xfinity Mobile lets you choose between three unlimited plans. They include: Intro ($45/month), Plus ($55/month), and Premium ($65/month). The monthly prices decrease as you add more lines. Intro includes standard-definition 480p LTE streaming on all devices, unlimited mobile hotspot data at 600kbp, and top speeds up to 20GB of data usage each month. Plus upgrades streaming definition to 720p and max data usage before speed caps to 30GB. Premium includes the same plus network traffic prioritization, an upper limit of 50GB data usage before speed caps, and an additional 15GB of high-speed hotspot data to use.