10 Best Xfinity Recommended Modem 2025 in the United States

The ARRIS SURFboard SB8200 is a solid choice if you're looking for a modem that's recommended for Xfinity and other major ISPs like Cox and Spectrum. It uses the latest DOCSIS 3.1 technology, which is 10 times faster than its predecessor, DOCSIS 3.0. This means you can enjoy high-speed internet up to 1 Gbps, making it suitable for heavy streaming, gaming, and downloading.

It supports 4 OFDM channels, enhancing its performance and stability for high-bandwidth activities. Another plus is its two 1-Gigabit Ethernet ports that allow you to connect to a Wi-Fi router or other wired devices easily, though it doesn't have a built-in router, so you'll need an additional device for Wi-Fi connectivity. The setup is simple and secure, thanks to the SURFboard Central App. Just plug in the device, follow the instructions, and you're good to go.

It's also a cost-effective option as owning your modem can save you up to $168 per year in rental fees. However, it's worth noting that there are no telephone ports, which might be a downside for those looking for VoIP services. Additionally, it's been around since 2017, so while it's still competitive, newer models might offer more advanced features. Customer support is commendable, with live chat and phone support available from 8 am to 1 am EST. The modem is compact and lightweight at 5.13 x 1.75 x 5.25 inches and 1.61 pounds, making it easy to place in your home. If you need a reliable, fast, and Xfinity-compatible modem, the ARRIS SURFboard SB8200 is a great option, especially if you don't require built-in Wi-Fi or telephone ports.

The ARRIS S34 modem is a solid choice for anyone using Comcast Xfinity or similar cable providers like Cox and Spectrum. It supports the latest DOCSIS 3.1 technology, which means it can handle very fast internet speeds—up to 2.5 Gbps on a single 2.5 Gbps Ethernet port, and with an additional 1 Gbps port, it can reach combined speeds close to 3.5 Gbps. This makes it great for households with heavy internet use such as streaming, gaming, or working from home. The modem also features next-generation upload speed optimization, which can help if your provider offers faster upload plans.

It’s easy to set up with a simple plug-in and app-based activation, making it friendly even for non-tech users. One key advantage is that owning this modem can save you money by avoiding monthly rental fees that cable companies usually charge. However, this model does not include a built-in Wi-Fi router, so you'll need a separate router to create a wireless network in your home. The unit is reasonably sized and compatible with most major U.S. cable internet providers, ensuring smooth use without worrying about compatibility issues.

For those looking to upgrade from older DOCSIS 3.0 modems and wanting to future-proof their home internet, the ARRIS S34 offers a fast, dependable, and cost-saving option.

The ARRIS S33 cable modem is a solid choice for those looking to upgrade their internet equipment and potentially save on rental fees. It's compatible with major U.S. cable internet providers like Comcast Xfinity, Cox, and Spectrum, making it versatile and user-friendly. The modem uses the latest DOCSIS 3.1 technology, which is significantly faster and more secure than its predecessor, DOCSIS 3.0. This upgrade can lead to better performance, especially for high-demand activities like gaming and streaming, thanks to reduced lag and the ability to handle multi-gigabit speeds.

With a maximum speed of 2.5 Gbps and four OFDM channels, it supports high-speed internet plans, ensuring it can handle today's and future internet demands. However, the modem doesn't have a built-in router, so you'll need a separate Wi-Fi router to create a wireless network at home. Setting up the ARRIS S33 is straightforward with the SURFboard Central App, which guides you through the process. Despite its compact size, it packs a punch in terms of performance, and its two-year warranty adds peace of mind.

One potential drawback is that its benefits may be limited by your specific internet plan and provider's infrastructure, so it's essential to confirm compatibility and potential speed gains with your ISP. It’s a highly-rated modem indicating general satisfaction among users. If you’re looking for a future-proof modem that supports the latest standards and high-speed internet plans, the ARRIS S33 is worth considering.