1GB By the Gig Plan

Starting April 22, 2026, By the Gig Plan is only available to existing customers. New activations are no longer allowed.

About This Pan

This plan is for single lines or multi-lines and includes unlimited talk and text in the U.S. plus 1GB of shared data. If you go over your data, a charged of additional $20 per 1GB. Stream in HD and higher-quality service in times with high network traffic. You can also use LTE Data Saver with 4G LTE Data to limit streaming quality to standard resolution and hotspots to 600 kbps. 

About Xfinity Mobile

The Xfinity Mobile option is only available to customers who have a post-paid subscription to a residential Xfinity Internet service. A $25 per line monthly charge will apply if the customer does not maintain their Xfinity TV, internet, or voice post-paid service.

Choose Xfinity Mobile just for yourself or add other lines on your plan. Get up to ten lines of unlimited nationwide talk and text included with your Xfinity Internet at no extra cost, so all you pay for is data. Customize how much data per line you want:

• By the Gig Plan: Pay only for the GB of shared data you use each month. There are no line access fees for lines that you add.

• Unlimited Plan: Pay at $40/month for the first line. Speeds are reduced after 30GB of usage per line to continue unlimited. Comes with unlimited mobile hotspot data at reduced speeds. Available multi-line savings for $20/line with a minimum of two lines. Stream at 480p video.

• Premium Unlimited Plan: Pay at $50/month for the first line. Unlimited high-speed data. Comes with unlimited mobile hotspot data, speed reduced after 30GB. Available multi-line savings for $30/line with a minimum of two lines. Stream at 4K video. Phone upgrades available up to 2 times in a 12-month period.

You can easily change to Unlimited data during your billing cycle with the app.

You can use your phone as a mobile hotspot (up to 600 kbps on Unlimited) when you need to connect a laptop, tablet, or any other device to the internet and you don’t have Wi-Fi.

Phone Options

You can purchase a new device from Xfinity Mobile or bring your own unlocked compatible phone. Check your phone's compatibility online or in-store here. Customers can choose between an eSIM (with compatible devices) or a physical SIM card when switching to Xfinity Mobile.

Get paid for your old phone when you trade in your old and eligible phone with Xfinity. Visit any Xfinity stores, online, or call (888) 936-4968 and talk to an agent to learn more. 

International Calling

Xfinity Mobile offers international roaming in over 200 countries, with competitive rates for talk, text, and data. 

Xfinity Mobile customers can opt to add a Global Travel Pass for $10/day per line to get 5GB high-speed data in over 215 countries. After the high-speed data is used, speeds are reduced to 3 Mbps.

Customers can also purchase a Mexico and Canada Unlimited Pass for $5/month to get unlimited talk, text, and 5GB high-speed data to these destinations for each line. Mexico and Canada Unlimited Pass is included on Xfinity's Unlimited Plans.

Network & Coverage

Xfinity uses America’s largest and most reliable 4G LTE and 5G network. 5G access now included on both shared data and unlimited plans in select cities for compatible devices.

Other Included Features

• Keep track of your usage with Xfinity Mobile app

• No contract

• Keep your current phone number

• Xfinity Call Guard

Xfinity Exclusives

Xfinity Wi-Fi Network

With access to the most hotspots nationwide, you can do what you love on your phone without adding to your 4G LTE data usage. Xfinity automatically connects you to Xfintiy Wi-Fi hotspots when they are available so you can use less 4G LTE data and save money.

Free Shipping

Get free standard shipping on all online orders.

Check out all the other best cell phone plans here.