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Google Fiber vs Xfinity: Side-by-Side Comparison

Compare Google Fiber and Xfinity plans, pricing, internet speeds, and available services to find the best home service provider for your area.

Editorial

Google Fiber vs Xfinity: Our Verdict

Google Fiber and Xfinity represent the fiber-versus-cable debate at scale, with Google Fiber offering pure fiber-optic symmetrical speeds in about 25 metro areas and Xfinity providing cable internet across 39 states plus Washington D.C. Google Fiber's 1 Gbps symmetrical plan at $70/mo undercuts Xfinity's comparable 1.2 Gbps download plan at around $90/mo while delivering dramatically faster upload speeds, and Google Fiber has no data caps versus Xfinity's 1.2 TB monthly cap that costs an additional $30/mo to remove. Both providers operate without annual contracts, but Google Fiber's no-fee, no-cap, no-surprise pricing model stands in stark contrast to Xfinity's more complex pricing structure.

Our Pick

Google Fiber

Recommendation

Google Fiber is the definitively better choice wherever it is available — faster uploads, lower price, no data caps, and transparent pricing make it superior to Xfinity in virtually every category. Choose Xfinity when Google Fiber is not an option at your address, and consider pairing it with Xfinity Mobile to offset the higher internet costs through mobile plan savings.

Side-by-Side Comparison

FeatureGoogle FiberXfinity
Starting Price$70.00/mo$20.00/mo
Max Internet Speed8000 Mbps2000 Mbps
Available Plans3 plans18 plans
Internet
TV
Mobile
Home Security
View Google Fiber PlansView Xfinity Plans

Featured Plans

Google Fiber

Internet

GFiber Home 3 Gig

$100/mo3000 Mbps
See all Google Fiberplans →

Xfinity

Home Security

Xfinity Home Plus

$40/mo
Internet

Xfinity Fast

$35/mo200 Mbps
Internet

Xfinity Fast 1 Gbps

$70/mo1000 Mbps
See all Xfinityplans →

Frequently Asked Questions

Does Xfinity have a data cap and does Google Fiber?

Xfinity imposes a 1.2 TB monthly data cap on most plans, and exceeding this limit costs $10 per 50 GB up to a maximum of $100 in overage charges, or you can pay $30/mo for an unlimited data add-on. Google Fiber has no data caps on any plan — you can use unlimited data at full speed without any additional charges. For a household that streams 4K video on multiple devices, games online, and works from home, 1.2 TB can be reached in a typical month.

How do Google Fiber and Xfinity upload speeds compare?

Google Fiber delivers symmetrical speeds, meaning its 1 Gbps plan provides 1 Gbps upload and 1 Gbps download simultaneously. Xfinity's cable infrastructure typically delivers upload speeds between 5 Mbps and 35 Mbps depending on the plan, which is 30 to 200 times slower than Google Fiber's upload speeds. This massive upload speed gap affects video conferencing quality, cloud backup times, social media content uploading, and livestreaming.

Is Xfinity's 5-Year Price Guarantee better than Google Fiber's pricing?

Xfinity offers a 5-Year Price Guarantee on select plans, which locks in your rate for 60 months. However, Google Fiber has historically never raised prices since its launch, maintaining its pricing for years without any guarantee gimmick needed. Additionally, Xfinity's guaranteed price doesn't include the $30/mo unlimited data add-on that many users need, making the true monthly cost higher even during the guarantee period.

Should I get Xfinity Mobile to make Xfinity a better deal than Google Fiber?

Xfinity Mobile is available only to Xfinity internet subscribers and offers competitive wireless plans that can reduce your total monthly connectivity costs. If you have a family with multiple phone lines, the savings from Xfinity Mobile could potentially offset Xfinity's higher internet pricing. However, Google Fiber saves roughly $20-50/mo on internet depending on the plan, so Xfinity Mobile needs to save more than that gap to justify choosing Xfinity.

Which provider has better coverage — Google Fiber or Xfinity?

Xfinity has vastly broader coverage, serving customers across 39 states and Washington D.C. as the largest cable provider in the United States. Google Fiber is available in approximately 25 metro areas including Austin, Nashville, Kansas City, Charlotte, Salt Lake City, Atlanta, Provo, Irvine, and West Des Moines. For most Americans, Xfinity is available but Google Fiber is not, making Xfinity the default broadband option in the majority of U.S. markets.

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