Xfinity Xb7 vs Xb8: A Complete Comparison Guide

Xfinity Xb7 vs Xb8 A Complete Comparison Guide

Do you want a comparison guide on Xfinity Xb7 vs Xb8 to help you decide which is better? If yes, then you have stumbled upon the right article.

I’ve always leaned on Xfinity for my internet needs. Their gear, especially modems, never let me down.

The time came to choose between the XB7 and XB8, and it felt like a big decision. The XB7 had been good to me, reliable and steady, but the buzz around the XB8’s features was hard to ignore.

So, I started with the XB7. It was familiar territory – the setup was a breeze, and it connected all my gadgets without a hitch.

Streaming, gaming, and the usual stuff all ran without a hiccup. But I couldn’t help wondering if I was missing out on something better.

Switching to the XB8 was like stepping into the future. The design itself was sleeker and more modern.

But the real game-changer was its performance. The XB8 boasted faster WiFi speeds, and it wasn’t just on paper.

I felt it when I streamed 4K videos and when my online games loaded in the blink of an eye.

Plus, the XB8’s coverage was impressive. I used to have a WiFi extender for my backyard hangouts, but with the XB8, I didn’t need it anymore.

After testing both, choosing the XB8 felt like a no-brainer. Its superior speed, coverage, and smart tech made my digital life smoother and more enjoyable. It was an upgrade in every sense.

However, the devices’ functions are very similar, and upgrading is not worth it for everyone.

In this article, I have shared a complete Xfinity Xb7 vs Xb8 comparison so you can choose the best one for your needs.

So, without any further ado, let’s get started.

Xfinity Xb7 vs Xb8: A Quick Overview

Xfinity Xb7 vs Xb8 A Quick Overview
Xfinity Xb7 vs Xb8 A Quick Overview

Xfinity Xb7 vs Xb8 are gateway models provided by Xfinity for its internet service. The gateway combines the functions of a modem and a router in one unit to offer users a convenient home Wi-Fi connection.

Xfinity Xb7 vs Xb8 are advanced gateways that have some similarities and differences.

XB7 uses Wi-Fi 6 technology and dual-band Wi-Fi connection, offering good performance for most smaller- and medium-sized homes.

It is suited for speeds up to 1 Gigabit.

In contrast, XB8 features the latest Wi-Fi 6E technology and tri-band Wi-Fi connection, providing faster speeds.

It is suitable for larger homes or those with many Wi-Fi devices due to stronger signal coverage.

Both gateways look almost similar. However, the XB8 is a little larger than the XB7 and has a USB-C port on the back.

Regarding similarities, XB7 and XB8 come with xFi Advanced Security to help protect your home network from online threats.

Both have two telephone jacks and four Gigabit Ethernet ports and are compatible with Xfinity Home Self-Protection devices.

Let’s check out their specifications in the next section.

Xfinity Xb7 vs Xb8 Specs Comparison

Xfinity Xb7 vs Xb8 Specs Comparison
Xfinity Xb7 vs Xb8 Specs Comparison

Here is a broad comparison between the Xfinity Xb7 vs Xb8 gateways model.

Features XB7 Gateway XB8 Gateway
Wi-Fi Bands Dual-band (2.4 GHz and 5 GHz) Tri-band (2.4 GHz, 5 GHz, and 6 GHz)
Wifi technology WiFi 6 technology Wi-Fi 6E technology
Gigabit Ethernet Ports Four Four
Total telephone ports Two Two
Maximum data throughput Download up to 2.5 Gbps Throughput 3.5 Gbps Download up to 2.5 Gbps Throughput 5 Gbps
Connected Devices Up to 75 Up to 100
Device capacity Lower to medium Higher
Home hotspot capable Yes Yes
Xfinity Advanced Security Yes Yes
WPS (Wi-Fi Protected Setup) Yes Yes
Gateway/Network Management Tool ( Yes Yes
Xfinity xFi eligible Yes Yes
Xfinity Home Pro Protection Compatible Yes Yes
Availability Issues Less reported
May receive XB7 due to high demand
Beamforming Yes Yes

The table above shows the major difference between Xfinity Xb7 vs Xb8 is their Wi-Fi standards.

XB7 uses Wi-Fi 6 technology and a Dual-Band Wi-Fi connection, which means it broadcasts on two frequencies—2.4 GHz and 5 GHz.

The 2.4 GHz offers a wider range but slower speeds, while 5 GHz offers faster speeds but a shorter range.

On the other hand, XB8 uses a Tri-Band Wi-Fi connection, adding a third band, 6 GHz, with Wi-Fi 6E technology.

This provides much faster speeds and can be especially beneficial for homes with many devices connected to the network.

Xfinity Xb7 vs Xb8 Advanced Features

Xfinity Xb7 vs Xb8 also boasts advanced features like tri-band technology, MU-MIMO, and Beamforming.

Let’s compare these features and see how they impact the performance of Xfinity’s XB7 and XB8 gateways.

Tri-Band Technology

Traditional Wi-Fi routers use a single band for all traffic, which is 2.4 GHz. However, advanced routers have added extra Wi-Fi frequencies for better performance.

XB7 uses two Wi-Fi bands, 2.4 and 5 GHz, while XB8 has one additional 6 GHz band.

This allows XB8 to offer better speed and coverage while supporting multiple devices simultaneously without congestion.

It is particularly useful for homes with many smart devices or users streaming high-definition content.

MU-MIMO (Multi-User, Multiple-Input, Multiple-Output)

MU-MIMO allows the router to simultaneously send and receive data to multiple devices, thus allowing communication with many devices and improving efficiency.

Traditional routers can only communicate with one device at a time. However, both Xfinity Xb7 vs Xb8 are well-equipped with MU-MIMO features that enable better device communication.


Beamforming is a unique feature that focuses the signal strength directly on the devices.

While some Wi-Fi routers send Wi-Fi signals in all directions, Xfinity Xb7 vs Xb8, which supports Beamforming technology, focuses the Wi-Fi signal toward connected devices, improving the signal strength and overall connectivity.

This provides a stronger and more reliable connection.

In conclusion, XB7 and XB8 are the latest gateways with advanced features like MU-MIMO, Beamforming, etc. However, XB8 uses the three Wi-Fi bands, offering better high-speed and coverage than XB7.

Xfinity Xb7 vs Xb8 Cost And Long-Term Value

Xfinity Xb7 vs Xb8 Cost And Long-Term Value
Xfinity Xb7 vs Xb8 Cost And Long-Term Value

While the Xfinity Xb7 vs Xb8 are the latest gateways with many improvements, the XB8 is a newer model with some additional features than the XB7, such as providing higher Wi-Fi speeds, supporting multiple devices with good coverage, etc.

With extra features, it comes slightly more expensive than the XB7. You must pay higher rental or purchasing fees for XB8 than XB7.

Hence, it might not be the first preference for budget-minded users who look for convenient options and better value for money.

Again, XB7 is perfect for a small to medium household with limited devices on the home network.

However, it is worth paying extra for XB8 to get optimal internet connectivity for a household with multiple devices connected to the network.

Xfinity Xb7 vs Xb8: Performance Enhancements

XB8 is the latest gateway model, with some advancements in its features that allow it to perform better.

XB7 uses Wi-Fi 6 technology, also known as 802.11ax. This latest Wi-Fi generation offers faster data, increased capacity, better connectivity with multiple connected devices, and improved power efficiency.

XB8 has upgraded Wi-Fi 6 technology, Wi-Fi 6E, which utilizes the newly added 6GHz Wi-Fi band. This is why XB8 offers faster speeds and improved coverage with less interference.

Xfinity Xb7 vs Xb8 Setup Process

The setup process for Xfinity Xb7 vs Xb8 is similar. You can set up both gateways with the help of the Xfinity App by following the guide below.

Here are the steps to set up the XB7 and XB8 gateway

  • To set up Xfinity Xb7 and Xb8, Download the Xfinity App.
  • Sign in to your Xfinity account with your ID and password.
  • The Xfinity app will prompt you to scan this QR code with your phone’s camera to identify your device.
Scan QR
Scan QR
  • Look for the QR Code on the bottom or side of your gateway.
Scan the QR
Scan the QR
  • Once the code is successfully scanned, you will see a green check mark.
Green Tick
Green Tick
  • You can also manually enter the 12-digit CM MAC Number as prescribed at the bottom of your gateway.
  • Now, choose a central location in your home to position your XB7 gateway. Please avoid placing your gateways near electronic gadgets like microwave ovens, baby monitors, or others that interfere with Wi-Fi signals.
  • To begin a connection, plug the coax cable into your gateway and the other end into the cable wall outlet. Ensure the connections are tight.
Coax Cable Port
Coax Cable Port
  • Now, plug the power cord into the back of your gateway and the other end into an electrical outlet.
Power Outlet
Power Outlet
  • Once you set up these connections, lights on your gateway may blink for up to 5 minutes.
  • When they stop blinking and stay lightened for at least a minute, your gateway setup is ready, and internet service is activated.
  • You can enable the Advanced Security feature to protect your home Wi-Fi network from threats.
  • You may give your Wi-Fi network a desired name and password.

If you face any issues during setup, you can contact Xfinity customer support for assistance.

Xfinity Xb7 vs Xb8 Choosing The Right Router

Xfinity Xb7 vs Xb8 are advanced gateways that provide superior Wi-Fi connectivity in your home.

Here are some factors to consider while choosing between the XB7 and XB8 routers.


Consider the internet speed that you need based on your activities. The XB8 is a newer Wi-Fi 6E technology offering faster speeds than the XB7, which uses Wi-Fi 6.

If you want a high-speed internet connection, the XB8 is a better choice. If you need a medium speed for your activities, you can go with the XB7.

Number of Devices

If you have multiple devices that use a lot of bandwidth to connect to your Wi-Fi network, you can choose the XB8 gateway.

It has a greater capacity for handling multiple devices simultaneously, while XB7 is optimal for limited devices.

Wi-Fi Range

Although the Wi-Fi range of the Xfinity Xb7 vs Xb8 will vary depending on the size and layout of your home, the XB8 has a slightly wider and better range due to its advanced technology.


The XB8 is more expensive than the XB7 gateway. If you need a good-performing router at an affordable price that would be sufficient for your small household, XB7 is a good consideration.

Additional Features

XB7 and XB8 have similar features, whether WPA3 security, MU-MIMO technology, or Beamforming. Based on your preferences, consider a suitable one.

Xfinity Xb7 vs Xb8 Customer Review

Xfinity Xb7 vs Xb8 Customer Review
Xfinity Xb7 vs Xb8 Customer Review

Customers have mixed reviews for both Xfinity Xb7 vs Xb8.

They have praised XB8 for its faster speed, wider range, and ease of handling higher bandwidth activities on multiple devices.

However, they have also reported its low availability and out-of-stock issues most of the time.

Similarly, users have applauded XB7 for its easy availability and for working well with most internet plans on limited devices.

However, they have shown dissatisfaction regarding using more devices with XB7 on their network.

XB7 and XB8 are considered good gateways for your home internet; the final choice depends on your needs.

Does XB8 Have Any Benefit Over XB7 Other Than Wi-Fi 6E?

XB8 offers tri-band Wi-Fi, including 2.4GHz, 5GHz, and 6GHz, with Wi-Fi 6E technology. This offers a wider range, faster speed, and reduced interference even with multiple devices on the network.

Besides Wi-Fi 6E, the XB8 has no significant benefits over the XB7. Both are capable gateways with advanced features.

Troubleshooting Xfinity Xb7 vs Xb8 Common Issues


Xfinity’s gateway XB7 and XB8 provide your home’s seamless Wi-Fi connection, but they can sometimes face issues. Here are some troubleshooting tips to help you resolve common problems in both devices.

Restart your Xfinity Gateway (XB7 and XB8)

Restarting is a common fix for many connectivity issues. You can do this manually by unplugging the power cable for a minute and then plugging it back in.

Check for Wi-Fi Interference

Identify household devices near your gateway that might interfere with Wi-Fi signals, such as microwave ovens, cordless phones, or baby monitors, and change your gateway’s position if possible.

Restore Factory Settings

Performing a factory reset will restore your gateway’s settings to their factory defaults and erase all your settings, including firewall settings, managed devices, parental controls, Wi-Fi credentials, etc.

To perform a factory reset, press the Reset button on the back of the gateway for up to 30 seconds until all the LED lights turn off.

(If your gateway does not have a Reset button, find the WPS button and press it) .


Update your Gateway Firmware

Outdated firmware can cause performance issues with the gateway. Check with Xfinity to see if there are any updates available.

Contact Xfinity Customer Support

You can contact Xfinity customer support for assistance if you cannot determine and resolve the issue with your XB7 and XB8 gateways.

Xfinity Xb7 vs Xb8 – World Wire Recommendation

The choice between Xfinity Xb7 vs Xb8 depends on your needs and priorities based on your internet plan and how many devices you want to connect to your network.

The new model, XB8, boasts faster Wi-Fi speeds.

XB8 is perfect for users who want to connect many devices over their home network to stream or download high-bandwidth content and are willing to pay a slightly higher cost for their gateway.

However, if you have a moderate number of devices and are looking for a budget-friendly gateway that offers satisfactory performance with similar features, XB7 can be a good option.

Ultimately, XB7 and XB8 are recent gateways offering improved Wi-Fi home networking with Xfinity Internet. Consider their essential factors and choose the one that best fits your needs and budget.

Frequently Asked Questions

What is the difference between XB7 and XB8?

The main difference between the Xfinity Xb7 vs Xb8 is that the XB8 offers a Tri-Band wireless connection with Wi-Fi 6E technology, whereas the XB7 offers Dual-Band with Wi-Fi 6.

How many devices can I have with the XB7 gateway?

You can have less than 10 or exactly 10 devices with Xfinity’s XB7 gateway.

Does XB7 have bridge mode?

Yes. The XB7 gateway has Xfinity bridge mode, which allows you to disable its routing capabilities while leaving the gateway with only modem functionality.

How can I contact Xfinity customer support?

You can reach Xfinity customer support at 1-800-Xfinity (1-800-934-6489) or chat with their representative online through their website.

Can restarting fix the issue in my XB8 gateway?

Restarting can fix temporary glitches in the XB8 gateway. You can perform a factory reset to fix the issue if it does not.

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About the author

William Smith

William Smith is a dynamic editor at World-Wire, covering a wide range of topics including health, technology, travel, and events. Known for his ability to simplify complex subjects, he engages readers with his insightful FAQs and articles. His diverse expertise has earned him accolades, including the "Excellence in Diverse Journalism" award in 2022.

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