10 Best Xfinity Modems 2026 in the United States

The Hitron CODA56 Multi-Gigabit DOCSIS 3.1 Modem is designed for users with high-speed internet plans, supporting speeds up to 2.5 Gbps. It's compatible with major ISPs like Xfinity, Spectrum, and Cox. The modem shines with its DOCSIS 3.1 standard, which is ten times faster than DOCSIS 3.0, ideal for users who need fast internet for gaming, streaming, and video conferencing. One major advantage is the ability to save on rental fees, potentially saving up to $168 annually.

The 2.5 gigabit Ethernet port ensures your router can handle these high speeds, but it’s crucial to note that this modem lacks built-in WiFi or router capabilities. This means you’ll need a separate router or WiFi mesh system to connect your devices wirelessly. While the modem offers significant speed improvements and excellent compatibility with major ISPs, it's not suitable for DSL, fiber, fixed wireless, or satellite services, and it doesn't work with providers like AT&T, Verizon, and Google Fiber.

With a customer rating of 4.2 out of 5 stars, most users find it reliable and high-performing, though some might find the lack of built-in WiFi limiting. This modem is ideal for tech enthusiasts and heavy internet users who have or plan to upgrade to high-speed internet plans and don’t mind using separate devices for WiFi connectivity.

The Hitron CODA DOCSIS 3.1 Modem is a strong contender if you're looking to save on rental fees and need a modem that supports high-speed internet plans, up to 1 Gbps. It is certified to work with major ISPs like Comcast Xfinity, Charter Spectrum, and Cox, making it a versatile option for various users. A key advantage is its DOCSIS 3.1 standard, which offers speeds 10 times faster than DOCSIS 3.0, ensuring smooth streaming, gaming, and conferencing. This modem can be an excellent fit for those with heavy internet usage who want reliable performance and reduced latency.

However, this modem does not come with a built-in WiFi router, so you'll need to pair it with a separate WiFi router or mesh system to connect your wireless devices. This might be a minor inconvenience or an additional cost for some users. It’s important to note this modem is not compatible with DSL, Fiber, Fixed Wireless, or Satellite services, nor with ISPs like AT&T, Verizon, or CenturyLink.

The Hitron CODA modem is easy to set up, requiring just a few straightforward steps to get online. While it performs well within its scope, you should ensure that your ISP is supported and that it aligns with your internet service plan to make the most of its capabilities. With a customer rating of 4.1 out of 5 stars and being lightweight and compact, it appears to be a user-friendly option for those looking to enhance their home internet setup.

The ARRIS SURFboard SB8200 is a robust cable modem designed for high-speed internet access, especially for users of Comcast Xfinity and other major U.S. providers. It utilizes the advanced DOCSIS 3.1 technology, which significantly increases internet speed potential, offering up to 1 Gbps, making it suitable for heavy streaming and gaming. This modem includes two 1-Gigabit Ethernet ports, providing flexibility for wired connections to other devices or a Wi-Fi router.

One of the key advantages of the SB8200 is its ability to save you money in the long run by eliminating the need for rental fees from your ISP, potentially saving up to $168 annually. It’s compatible with various cable internet providers, which adds to its versatility. The device is also designed for easy setup; users simply need to plug it in and follow the instructions via the SURFboard Central App.

There are a few drawbacks to consider. While the built-in features are excellent for standard use, the SB8200 doesn't have a built-in Wi-Fi router. This means you'll need to purchase a separate router for wireless connectivity, which could be an additional expense. Additionally, while the modem is compatible with most major ISPs, it’s important to confirm compatibility with your specific plan to avoid any service interruptions. Some users may find the initial setup challenging if they're not very tech-savvy.