T-Mobile launched its Fiber 5 Gig plan at $90 per month with AutoPay, backed by a 10-year guarantee on the base internet-data price. The plan delivers 5,000 Mbps symmetrical upload and download speeds over a fiber-optic connection, pushing the boundaries of what home internet speed can deliver.
What the Plan Actually Includes
The 5 Gig tier pairs its speed with promotional incentives and included hardware.
The plan delivers symmetrical speeds, meaning upload and download both run at up to 5,000 Mbps. T-Mobile includes a mesh Wi-Fi extender for homes that need broader wireless coverage.
New customers qualify for two months of free service through bill credits and up to a $300 virtual prepaid card. The card can take up to 14 weeks to arrive after installation, and T-Mobile may reclaim it if the customer cancels within the first year.
T-Mobile’s existing fiber lineup starts at 300 Mbps for $45 per month. It steps up to 1 Gbps for $60 and reaches 2 Gbps for $70. These figures should be confirmed against local availability pages, as pricing and options can vary by address.
Read the Fine Print Before You Lock In
The 10-year guarantee covers the base internet-data rate only, with several notable exclusions.
The guarantee applies only to the internet-data portion of an eligible plan. Taxes and fees are excluded, and those can change.
Voluntary speed or equipment upgrades, select limited-time promotions, per-use charges, and third-party services also fall outside the guarantee. The $90 rate requires AutoPay; without it, the price is $100 per month before taxes and fees.
Availability is address-dependent. T-Mobile notes the service is not available in all areas, so an address check is the first step for any interested customer.
How It Stacks Up Against Competitors
T-Mobile is positioning the plan as a value option in the multigigabit-fiber market on both speed and price stability.
Google Fiber’s multigigabit options offer a useful reference point. Its 3 Gbps plan is listed at $100 per month and its 8 Gbps plan at $150, according to Google Fiber’s publicly listed rates; these figures should be verified against current local pricing before drawing direct conclusions.
At $90 per month with AutoPay for 5 Gbps symmetrical service, T-Mobile is competing on speed-per-dollar and price stability at the same time.
Who Has a Real Reason to Buy This
The plan targets high-bandwidth households, though most home networks cannot fully use 5 Gbps.
The realistic primary audience includes large households, remote workers with heavy cloud backups, and streamers uploading high-resolution content. Gamers who also host servers round out that group, and symmetrical upload capacity is a meaningful distinction from cable plans that typically offer far slower upload speeds.
Most home devices and standard internal networking hardware cannot saturate 5 Gbps. Customers without several simultaneous high-bandwidth users may find a lower-priced tier delivers the same practical experience at a lower cost , and may already be paying too much for speeds they don’t need.
The Bigger Picture for Broadband Shoppers
T-Mobile is treating price predictability as a product feature rather than a temporary promotion.
T-Mobile is framing the 10-year base-rate guarantee as the plan’s defining feature, not just a promotional add-on. For customers who regularly renegotiate rates when introductory pricing expires, that commitment carries real financial weight.
The 5 Gbps number draws attention. The price guarantee is the offer T-Mobile is structuring its pitch around.
