Xfinity Review

If Comcast Xfinity is the main — or only — cable internet option where you live, then we have good news for you: Xfinity is one of the best internet service providers (ISPs) in the US. It offers a wide variety of plans, with download speeds ranging from 25 to 2,000 megabytes per second (Mbps). That’s among the fastest on the market. Xfinity is also the most widespread provider, with far-reaching service in 39 states and Washington DC.

To top it off, Xfinity is ranked among the most reliable ISPs. This means that you’re a lot more likely to actually receive the internet speeds you pay for. Xfinity takes second place nationwide for its ability to deliver on advertised speeds (scoring just below Optimum).

The Claim

Comcast claims that Xfinity Internet delivers the most reliable high-speed internet and Wi-Fi for all devices, all the time.

Is it true?

Yes. Technically, we can’t call Xfinity the most reliable provider, as Optimum eked past it in the Federal Communication Commission’s (FCC’s) latest report. But Xfinity passes the 80/95 benchmark, meaning that at least 80% of customers receive advertised speeds 95% of the time. In terms of reliability, Xfinity beats most cable internet providers — and it far surpasses DSL and satellite options.

It’s also worth mentioning that, while Optimum took home gold for reliability, it only serves four states. Xfinity Internet is available in 39. This means that in every state Xfinity serves — besides Connecticut, New Jersey, New York, and Pennsylvania — it really is the most reliable option. It’s also likely to be one of the fastest. In 2017, the internet performance ratings site ranked Xfinity as the fastest internet provider nationwide. Available speeds vary by location, so be sure to use our ZIP code tool to check plans in your area.

Product Overview

Best for

Reliable service that’s available almost anywhere

Not for

The most affordable internet packages


Reliably fast internet

Xfinity Internet not only promises some of the fastest speeds available — from 25 Mbps up to 2,000 Mbps — but it also does a great job keeping that promise. Xfinity customers are more likely to actually experience the download speeds they pay for than those with other internet service providers. Proven reliability is the reason Xfinity was rated Fastest Internet Service Provider by SpeedTest in 2018.

Generous data allowance

Even though Xfinity technically has a data cap, most customers will never have to worry about maxing out their internet usage. Xfinity sets its limit at 1 TB per month in most states; for context, two people can play online games 24 hours per day for 30 days straight and still have enough data left over to watch all 629 episodes of "The Simpsons" in high-def. In other words, Xfinity will feel unlimited to most people.

If your household does use more than 1 TB of data per month — think multiple people streaming on multiple devices every day — Xfinity has a solution. The service offers an Unlimited Data Option for an extra $50 per month. However, Xfinity recommends signing into your account to monitor your personal data usage before making the upgrade. You may find that 1 TB of data stretches further than you think.

Flexible data plan

Xfinity also offers money-saving data plans for light internet users. If you only use Wi-Fi to check email and surf the web (rather than to stream video or online game), then you may be eligible to enroll in Xfinity’s Flexible Data Option. This plan credits $5 back each month to customers who use less than 5 GB of data. Before enrolling, though, be sure to verify that your data usage truly falls below that 5 GB mark — if not, you’ll be charged $1 for each extra gigabyte, up to $200 per month.

Ultra high-speed network options

Xfinity is currently rolling out Gig-speed internet — an ultra-fast fiber internet option that can reach download speeds of up to 2,000 Mbps (2 Gbps). The catch? Its Gig-speed connection is still in its early stages, and it's only available in a handful of cities. It’s also costly: Xfinity’s fastest fiber option rings in at a stunning $300 per month, with $500 installation and $500 activation fees. The lower-tier, 1 Gbps plan costs $110 per month (with a two-year agreement) — which is more reasonable, but still pricier than most cable internet plans.

Possible drawbacks

Customer service

ISPs don't rate highly for customer service, and Xfinity is no exception. It has a reputation for long wait times to reach a representative and difficulty disconnecting services. The American Customer Satisfaction Index, which conducts thousands of customer surveys annually, ranks Xfinity as eighth best out of 12 providers. J.D. Power, another independent third party, gave it a ranking of 2/5 in customer satisfaction in the North Central, South, and East regions. That said, Xfinity is striving to make improvements by hiring more representatives and creating appointment slots to reduce hold times, so customers should see improvements in the future.


Xfinity isn’t always the best value when compared to the competition. For instance, $45 per month gets you up to 150 Mbps with Xfinity but up to 200 Mbps with Charter Spectrum. Of course, it’s worth remembering that Xfinity is more likely to meet its promised speeds than many other providers — so paying less with another ISP may still mean slower internet.

The Competition

Cox Communications
AT&T Internet
Our review
Our review
Our review
Our review
From $29.99/mo.
From $29.99/mo.
From $40/mo.
From $44.99/mo.
States served
Connection type
Maximum download speeds
25 Mbps-2 Gbps
10 Mbps-1 Gbps
50 Mbps-100 Mbps
100 Mbps-940 Mbps
Data caps
1 TB
1 TB
300 GB, 600 GB, 1 TB
BroadbandNow customer approval rating

Xfinity vs. Cox Communications

Cox Communications fares better than Xfinity when it comes to customer service. However, Xfinity plans generally offer better value than Cox's. Both companies’ base internet tiers start at $30 per month. (Note: If you choose a one-year contract, your Xfinity Internet plan starts at $20 per month.) With Xfinity, that $30 gets you 25 Mbps download speeds, while with Cox it only gets you 10 Mbps.

Xfinity vs. AT&T Internet

AT&T Internet is one of our favorite internet service providers, and it also earned top marks in J.D. Power’s customer satisfaction awards. As with all ISPs, plans and pricing vary by location — but most people will get a little more bang for their buck with AT&T. For example, a $40 plan from AT&T starts at up to 50 Mbps (reaching up to 100 Mbps for $40 in some areas), while a $30 Xfinity no-contract plan only gets you 25 Mbps.

Xfinity vs. Spectrum

Charter Spectrum internet plans start at 100 Mbps, while Xfinity plans start at just 25 Mbps. For those higher service tiers, Spectrum tends to be a bit more affordable (between $5 and $20 less than Xfinity). It also doesn’t impose data caps and will pay up to $500 to buy you out of your current contract. That said, Spectrum speeds don’t reach Xfinity’s highest 2 Gbps speeds. If you live in an internet-loving household and need high-capacity downloading speeds, Xfinity is likely a better bet.

Xfinity FAQ

Where is Xfinity available?

Xfinity is the most widely available cable internet provider in the US, with service in Washington, DC as well as these 39 states: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Idaho, Illinois, Indiana, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, New Hampshire, New Jersey, New Mexico, New York, North Carolina, Ohio, Oregon, Pennsylvania, South Carolina, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, and Wisconsin.

Coverage varies by ZIP code. Check your address and see which Xfinity plans are available where you live.

What is the fastest Xfinity internet speed?

In most areas, Xfinity offers internet speeds between 25 and 250 Mbps. Prices range from $30 to $60 per month for these plans if you choose the no term agreement option. Certain areas also have access to Gig-speed internet, Xfinity’s ultra-fast fiber internet option. Gig-speed offers downloading speeds up to 2,000 Mbps — but it’s less accessible and much more expensive than traditional cable internet. To see which plans are available in your area, use our ZIP check tool.

What Xfinity speed should I get?

The right internet speed for your household depends on how many devices you use, how often you’re on them, and what activities you primarily do on the internet. The table below can serve as a guideline to get you started. Once you’re signed up, we also recommend checking data usage in your Xfinity user account. This is a good way to ensure that you’re not in danger of exceeding data limits or paying for more speed than you actually need.

Number of Devices
Light Use
Moderate Use
Heavy Use
Constant Use
5-10 Mbps
15 Mbps
25 Mbps
50 Mbps
15 Mbps
25 Mbps
50 Mbps
100 Mbps
25 Mbps
50 Mbps
100 Mbps
150 Mbps
50 Mbps
100 Mbps
150 Mbps
200+ Mbps

The speed provided by Xfinity will be determined by the plans offered in your area. Speeds range from 25 Mbps to 2,000 Mbps. Once you're signed up, use the Xfinity speed test tool to make sure you're getting the speeds you paid for, and check your data usage in your Xfinity user account.

What is the difference between Comcast and Xfinity?

There isn’t one. Xfinity is owned by Comcast — it’s the company’s cable TV, internet, and phone branch. The two names are sometimes used interchangeably when talking about these services. You may also see it called “Comcast Xfinity” or “Xfinity by Comcast.” All names refer the same suite of TV, phone, and internet services provided by Comcast.

The Bottom Line

The first step in choosing an ISP is to see which companies are available in your area and to compare plans and pricing offered by those companies. If Xfinity has service where you live, then it’s likely one of your best options. With multiple speed tiers, decent value, and certified reliability, Xfinity tops much of the competition. And while customer support has been a sticking point for the company, efforts to improve its service point toward a more positive customer experience in the future.

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