Xfinity Fast Internet Package

Xfinity's third internet plan, Fast increases your speed for a similar increase in price. Meaning, compared to Connect More (400 Mbps, $55/mo), you get 600 Mbps for $70/mo. So, you get a nice bump in speed for $15 more per month.
With regard to equipment, Xfinity has a pretty high-tech modem and router combo. There's usually a $15/mo fee to rent them but, with the current promotion, they're included free for the life of your guaranteed prices. That's nice and all but we always recommend to use your own equipment -- you'll never have to rent anything and can usually transfer it to other providers if you switch in the future..
PERFECT FOR: households with a handful of connected devices that stream plenty of games and movies.
Xfinity features six internet plans (Fast is near the middle). Here's a look:
What you can do with 600 Mbps download and 35 Mbps upload
In a word, anything. And that goes for the entire family. Streaming a typical HD video or movie requires about 10 Mbps. So, obviously, plenty of bandwidth available, even for a handful of connected devices. The only other online activities that require more are 4K HD streaming and broadcasting your own live stream (both need about 25 Mbps). Unless you have a small army of Youtubers living with you, the Fast plan should cover just about any need.
Check out the table below for more common uses and their bandwidth usage (per user)
Price, Fees and Discounts
Now that we've covered most of the features, let's dig into costs. No hidden or small print -- just the actual list of fees that apply. So, no more sticker shock when that first bill arrives. Overall, the costs with Xfinity Fast are a bit cheaper than Spectrum and other competitors in shared areas. More importantly, Xfinity does a solid job being transparent with pricing so we didn't have to dig too far to find all the fees and costs.
Xfinity Fast: Fees
Modem/Router (xFi)
With Xfinity, you have three different equipment options:
- Your own equipment - use your own modem and router. No monthly cost.
- Xfinity Gateway(xFi) - modem/router combo and their entry-level option. Costs $15/mo, though currently free for 2 years.
- Xfinity XFi Complete - their most advanced modem/router and normally goes for $25/mo. Current specials also have it $10/mo for 2 years.
The single biggest reason to upgrade to XFi Complete is it qualifies you for unlimited data. Otherwise, Xfinity has a none TB data cap that applies to all their plans. $25/mo isn't cheap, so maybe use it for up to 24 months until the free promo expires.
Installation Kit
Getting your service setup is quite easy. You simply connect the equipment to your coax cable and activate the service via the Xfinity app (or call them up). If your residence doesn't already have cable TV/internet wired up (pretty rare these days), a technician will need to visit to get you connected. Either way, Xfinity charges a one-time installation fee of $15 to get your account activated.
Monthly Tax
Based on your state, you may be charged an additional sales tax. If so, it's usually only a couple bucks a month.
Xfinity Fast: Credits
Autopay credit
With any Xfinity service, you qualify for up to a $10/mo discount when you enroll in autopay. That assumes you use your bank account (not a credit card). Using a credit card drops that discount down to $5/mo.
Sample Xfinity Fast Internet Bill
Ok, now that we've covered the features and individual costs, let's toss everything into a sample bill. The example below assumes you're using their equipment (xFi Complete) and enrolled in autopay.
- auto-pay discount
- sign-up discount
- ($10)
- ($4)
(5yr discount)
What about hidden fees?
There aren't any. If you are late with a payment, expect the following...
- Late payment fee - if payment isn't submitted within 2 weeks after your due date, a $10 late fee might be added to your bill (though not always).
Xfinity Internet Features
Other than the free equipment, Xfinity is most known for its huge free WiFi Hotspot network. It's available nationwide and is a huge plus for customers...

Leveraging its over 26 million customers in the U.S., Xfinity lets you connect to any user's Wi-Fi signal. Using the Xfinity app is the easiest and quickest way to do so. It automatically scans networks in your immediate area and generally connects you without issue.

As mentioned, Xfinity offers two modem/router combos. They're both above-average speed and feature-wise. You got a bit more security with xFi Complete but probably not worth the extra monthly cost (free discounts aside).
Xfinity Fast Data Cap: none
Xfinity recently upgraded all their internet plans and removed a pesky 1.2 TB data cap they had in place for years. So, no more worrying about streaming that extra movie or checking how much data you have left. Kudos to Xfinity for keeping up with the industry.
How to get this plan
As of today, the best price and promos for the Fast plan are below. Calling tends to be the best way to make sure everything is setup correctly, right from the start...
- Fast internet plan for as low as $55/mo
- 600 Mbps download, 100 Mbps upload
- $19/mo in credits for 24 months
- xFi Modem/Router available or bring your own
- Access to millions of Xfinity WiFi Hotspots
- Qualifies you for bundling deals with TV/phone
Frequently Asked Questions
Can I easily downgrade from Fast if needed?
Yes. Xfinity doesn't make you jump through (financial) hoops to downgrade. Simply call up customer service and they'll switch you over and your next bill will be prorated accordingly.
Can I save by bundling Fast with TV or mobile?
Sure can. Most of those savings are on the mobile + internet side. Xfinity, like most internet providers, would love to be the source for all your data needs... and prices all their bundles accordingly. However, always compare apples to apples (i.e., total cost after new customer promos expire).