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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsComcast announced a five-year price guarantee for new Xfinity Internet customers on April 15, 2025, and Xfinity still advertises the offer in 2026. The guarantee can make budgeting easier, but it is not necessarily a lock on your entire bill. Your address, eligibility, selected speed, autopay method, taxes, fees, equipment and later plan changes all matter.
The current offer shown by Xfinity highlights 300 Mbps service for qualifying new customers. Check the address-specific order summary—not the historical launch headline—before deciding.
What Comcast originally announced
Comcast’s April 15, 2025 announcement introduced five-year pricing for new Xfinity Internet packages. The launch release advertised plans starting at $55 per month and described unlimited data, an Xfinity Gateway and no annual contract.
The $55 figure was a historical “starting at” price, not a universal 2026 rate. Current pricing and eligibility vary by address and promotion; Xfinity’s current deals page is the appropriate place to begin an address check.
#1 Best Overall
- MAXIMIZE YOUR CABLE INTERNET AND WHOLE-HOME WIFI: A cable modem and WiFi router in one device unlocks the full potential of your home internet with faster downloads, smoother WiFi for gaming and video calls, and reliable coverage in every room.
- APPROVED FOR YOUR PROVIDER AND PLAN: Works with Xfinity internet plans up to 800Mbps, Spectrum up to 1Gbps, and Cox up to 1Gbps. Not compatible with Verizon, AT&T, CenturyLink, DirecTV, DISH, or bundled voice plans. ISP activation required after setup.
- MULTI-GIG DOCSIS 3.1 SPEEDS: Get Gigabit+ cable download speeds on today's fastest plans, with headroom for the upgrades ahead. Real-world speeds depend on your plan and ISP network.
- WIFI 6 COVERAGE FOR THE WHOLE HOME: Stay connected in every room with dual-band AX2700 WiFi 6 covering up to 2,000 sq ft and capacity for 25+ connected devices. Real-world coverage depends on home size, layout, and building materials.
- WIRED CONNECTIONS FOR YOUR FASTEST DEVICES: Four Gigabit Ethernet ports keep gaming consoles, desktops, and streaming devices hardwired for the lowest latency and the most stable connection in your home.
What Xfinity advertises now
As of August 18, 2026, Xfinity’s current guarantee page displays an offer centered on:
- 300 Mbps internet
- Unlimited data
- An Xfinity Gateway
- Advanced Security
- No annual contract
- One Xfinity Mobile Select line free for one year, subject to separate eligibility and restrictions
The page says the offer is for new Xfinity Internet customers and is not available in every situation. Enter your address to see the actual plan, price and terms offered to your household.
This offer sits within Comcast’s broader June 2025 move toward national “everyday price” packages. Its June 26, 2025 announcement described four national internet tiers, bundled equipment and one- or five-year guarantees available without contracts. That did not automatically convert every older plan or account.
Rank #2
- Fast, Reliable Connection: Enjoy high-speed streaming, gaming, and browsing with a trusted brand used in over 260 million homes.
- Advanced Modem Tech: Uses DOCSIS 3.1 for faster speeds, better security, and smoother gaming.
- Strong Wi-Fi 6 Coverage: Dual-band Wi-Fi 6 delivers faster, wider wireless performance for your whole home.
- Service Compatibility: Works with major ISPs like Xfinity, Spectrum, and Cox
- Save on Fees: Own your modem and avoid up to $168/year in rental charges (varies by provider)
What the five-year lock protects
The safest interpretation is that the qualifying plan’s stated monthly internet rate is held for five years under the offer terms. It should not be described as a guarantee that every component of your bill stays unchanged.
| Usually covered | May still change |
|---|---|
| The qualifying monthly internet rate | Taxes and governmental or regulatory fees |
| The selected plan price during the guarantee period | Installation charges |
| The stated five-year period | Optional television, mobile, security or support services |
| Equipment additions or changes | |
| Credits, promotions or discounts that expire | |
| Charges caused by changing speed or migrating plans |
Xfinity’s terms specifically say installation, taxes, fees and other applicable charges are extra and may change. They also require paperless billing and automatic payment from a stored bank account for the displayed terms; otherwise an additional $10 per month applies. Save the final order confirmation so you can identify exactly which amount is guaranteed.
Who qualifies?
The public offer identifies new Xfinity Internet customers as eligible. “New customer” can be narrower than an existing subscriber asking for a different speed or promotion. Existing customers should not assume that an upgrade, retention offer or account change automatically provides five-year pricing. Community reports describe existing-customer eligibility disputes, but your written account terms—not a forum post—control.
Rank #3
- Compatible with major cable internet providers including Xfinity and Cox. NOT compatible with Verizon, Spectrum, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service. Best for cable provider plans up to 800Mbps.
Before ordering, verify:
- Whether Xfinity serves your address and displays the guarantee there
- Whether your household recently had Xfinity Internet
- Whether a move creates a new qualification or ends an existing offer
- Whether changing speed, adding television or mobile changes the guaranteed rate
Ask for the guaranteed rate and its start date in writing and keep the order summary as a PDF or screenshot.
Is it a contract?
No annual contract is required for the advertised offer. Comcast says customers can cancel without an early-termination penalty. A price guarantee and a term contract are different: the former stabilizes a qualifying rate, while the latter requires staying for a specified period. Cancelling still ends your service and therefore ends the practical benefit of the guarantee.
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Use this calculation rather than relying on the headline:
Rank #4
- TWO-IN-ONE DOCSIS 3.0 MODEM ROUTER: Combines your modem and router into one device. Simply connect to your coaxial cable outlet to set up. Not compatible with fiber, DSL, satellite, or bundled voice services from cable providers. For US cable internet only.
- AC1900 WIFI 5 SPEED FOR STREAMING, GAMING, AND YOUR WHOLE HOME: Up to 1.9Gbps combined across 2.4GHz and 5GHz bands for fast, reliable speeds even during peak hours. Beamforming+ boosts range and reduces dead spots to keep every device connected throughout your home. Real-world speeds depend on your connected devices and internet plan.
- CERTIFIED WITH XFINITY AND COX FOR FAST, RELIABLE CABLE INTERNET: Works with Xfinity internet plans up to 800Mbps and Cox plans up to 500Mbps. Not compatible with Verizon, AT&T, CenturyLink, DirecTV, DISH, or bundled voice plans. ISP activation required after setup.
- WIRED AND WIRELESS CONNECTIONS FOR EVERY DEVICE IN YOUR HOME: Four Gigabit Ethernet LAN ports deliver fast, reliable wired connections for computers, gaming consoles, streaming players, and storage drives. One USB 2.0 port for additional device connectivity.
- SET UP AND MANAGE YOUR NETWORK WITH THE FREE NIGHTHAWK APP: Download the Nighthawk app on iOS or Android to get connected quickly, run speed tests, pause the internet on any device, manage connected devices, and control your network from anywhere. Browser-based setup also available.
True monthly cost = guaranteed internet rate + taxes and fees + non-included equipment or services + any payment-method surcharge after discounts.
Compare both your first bill and a normal bill after temporary credits expire. Confirm the cost with and without a stored-bank-account autopay method, installation charges, Gateway or other equipment charges, and any mobile or television promotion. The address-specific checkout total controls if it differs from an advertisement.
Common billing and account problems
“My bill increased even though I have a lock.”
Compare the old and new bills line by line. A fee or tax may have changed, an autopay condition may have been lost, a promotional credit may have expired, or you may have changed speed, equipment or optional services. The guarantee may apply only to the internet component.
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- Modem Technology: DOCSIS 3.0 is a reliable, broadly available, and affordable technology that delivers high speed internet to your home devices.
- Simple and Secure Set-up: Just plug-in, download the SURFboard Central App, and follow the step-by-step intrstuctions to activate the modem, set-up and customize your Wi-Fi network, and add devices to your home network. Once setup is complete, the app provides real-time monitoring of the devices on your network, enhanced parental controls like setting time limits and pausing internet and much more.
“I am already an Xfinity customer.”
The current public page says “new Xfinity Internet customers.” Do not assume an existing account qualifies; ask Xfinity to identify the exact offer attached to your account and obtain it in writing.
“Checkout costs more than the headline.”
Different address, speed tier, customer status, installation, taxes, fees, unavailable promotions or payment-method requirements can explain the difference. Use the final order summary as the authoritative price.
“Can I upgrade and keep the lock?”
Do not assume so. Treat a speed or plan change as potentially replacing the original guarantee unless the new order explicitly preserves it. Nothing in the cited public material establishes automatic renewal after five years or after a plan change.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How it compares with alternatives
| Provider | Technology and guarantee information | Key qualification |
|---|---|---|
| Xfinity | Wired cable or fiber-powered access; current page highlights a five-year guarantee and 300 Mbps offer | New-customer, address and plan restrictions; taxes, fees and some charges are outside the lock |
| Verizon 5G Home | Fixed wireless; guarantee length varies by plan, including a five-year lock on at least one higher tier | Speeds depend on signal and capacity; terms exclude certain equipment charges, discounts, promotions and third-party services |
| T-Mobile 5G Home | Fixed wireless; eligible Rely, Amplified, All-In and AWAY plans receive a five-year guarantee | Eligibility can depend on a qualifying voice line, AutoPay, plan and address; taxes, fees, add-ons and upgrades are excluded |
| Local fiber | Often offers symmetrical uploads and low latency; terms are provider-specific | Compare availability, installation, equipment, expiration of promotions and the all-in bill |
Verizon’s detailed terms are on its official page. T-Mobile explains exclusions in its price-lock FAQ. Fixed wireless can be excellent at one address and inconsistent at another, while fiber may offer materially better uploads and latency even without a five-year guarantee.
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Potentially good fit
- You expect to stay at the address for several years.
- Xfinity is the best wired option available.
- Predictable pricing, unlimited data and included equipment matter more than switching flexibility.
- The guaranteed rate is competitive after taxes, fees and required payment conditions.
Potentially poor fit
- A comparable fiber plan offers symmetrical speeds or lower latency.
- You expect to move or change plans soon.
- Your work, gaming or cloud-backup needs require stronger uploads than the address-specific Xfinity plan provides.
- The apparent savings depend mainly on temporary mobile or autopay credits.
- You need to use your own modem and router, or are an existing customer who cannot qualify.
Checklist before you order
- Record the exact plan name and download speed.
- Record the guaranteed monthly internet rate and guarantee start date.
- Confirm the five-year duration in the order terms.
- Check whether paperless billing and bank-account autopay are required.
- Calculate the price without the qualifying payment method.
- Identify Gateway, equipment and installation charges.
- List taxes, regulatory fees and other non-guaranteed charges.
- Confirm unlimited data is included.
- Separate temporary mobile or television credits from the ordinary bill.
- Ask what happens if you change speed, equipment or plan.
- Ask what happens when the five-year period ends.
- Confirm the offer is available at your address.
- Confirm whether Xfinity considers your account new or existing.
- Save the final order summary and terms.
The Bottom Line
Xfinity’s five-year price guarantee is real and can provide useful predictability, but it protects a qualifying internet rate—not automatically your entire bill. Verify the address-specific plan, eligibility, autopay condition, taxes, fees and change-of-plan rules. Then compare the all-in cost and upload performance with fiber, Verizon 5G Home and T-Mobile 5G Home before committing.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
