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10 Best Modem Router Combo Comcast Xfinities 2025 in the United States

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Our Top Picks

#1

Winner

ARRIS (G54) - Cable Modem Router Combo - Fast DOCSIS 3.1 Multi-Gigabit & BE 18000 WiFi 7 Comcast Xfinity, Cox, Spectrum Quad-Band 1, Up to 18 Gbps Max Speed

Rating
10.0
Chosen by1,370
Compatibility
Speed
Number of Ethernet Ports

Most important from
20066 reviews

Compatibility
Works seamlessly with Xfinity, and the speed and performance are impressive, offering a solid connection and fast internet speeds.
Speed
Works seamlessly with Xfinity, and the speed and performance are impressive, offering a solid connection and fast internet speeds.
Number of Ethernet Ports
The device is compact and features multiple Ethernet ports, which is a significant advantage for those needing stable wired connections.
Ease of Setup and Management
The modem is easy to set up, especially with the SURFboard Central App, making the installation process smooth and user-friendly.

The ARRIS G54 Cable Modem Router Combo stands out as a strong option for those seeking a reliable modem-router for high-speed internet, especially with providers like Comcast Xfinity, Cox, and Spectrum. One of its main strengths is compatibility, as it supports DOCSIS 3.1 technology, ensuring faster speeds and better security compared to older standards. With a maximum speed of up to 18 Gbps, it’s particularly beneficial for heavy internet users who engage in gaming or streaming, providing a robust connection for multiple devices.

The Wi-Fi coverage is impressive, reaching up to 5,000 square feet, making it suitable for larger homes. The inclusion of multiple Ethernet ports (four 1-Gigabit and one 10-Gigabit) allows for wired connections to devices that require stability, such as gaming consoles and smart TVs. Additionally, the ease of setup through the SURFboard Central App simplifies the initial installation and offers features like real-time device monitoring and enhanced parental controls, which can be very user-friendly for non-tech-savvy individuals.

While the G54 is advanced, the higher speeds may not be necessary for everyone, and users with slower internet plans might not fully benefit from its capabilities. Furthermore, it weighs around 3.12 pounds, which could be considered a bit bulky for some. It’s essential to consider your specific internet needs before investing in such a high-speed option.

Rating
10.0
Chosen by1,370
Compatibility
Speed
Number of Ethernet Ports

Most important from
20066 reviews

Compatibility
Works seamlessly with Xfinity, and the speed and performance are impressive, offering a solid connection and fast internet speeds.
Speed
Works seamlessly with Xfinity, and the speed and performance are impressive, offering a solid connection and fast internet speeds.
Number of Ethernet Ports
The device is compact and features multiple Ethernet ports, which is a significant advantage for those needing stable wired connections.
Ease of Setup and Management
The modem is easy to set up, especially with the SURFboard Central App, making the installation process smooth and user-friendly.
#2

ARRIS (G20) - Cable Modem Router Combo - Fast DOCSIS 3.1 Multi-Gigabit WiFi 6 (AX3000), Approved for Comcast Xfinity, Cox, Spectrum & More, 1.0 Gbps Max Speeds, Next-Generation Upload Optimized

Rating
9.1
Compatibility
Speed
Wi-Fi Standards

Most important from
20066 reviews

Compatibility
Compatibility with Xfinity is solid, despite initial setup hurdles that can be resolved with a bit of persistence.
Speed
Reliable performance with high-speed internet, perfect for streaming and gaming.
Wi-Fi Standards
Strong and stable connection, leveraging Wi-Fi 6 technology for better coverage and efficiency.
Number of Ethernet Ports
Compact size and dual Ethernet ports enhance usability and connectivity options.
Ease of Setup and Management
Easy setup process, especially with the SURFboard Central App guiding through configuration.

The ARRIS G20 is a robust modem-router combo that stands out for its high-speed capabilities and compatibility with major U.S. cable internet providers, including Comcast Xfinity. It supports DOCSIS 3.1, which is significantly faster and more secure than its predecessor, DOCSIS 3.0. This makes it ideal for users who require fast, reliable internet for activities like streaming, gaming, and handling multiple devices simultaneously. The inclusion of Wi-Fi 6 (AX3000) technology means you get improved efficiency and coverage, catering to the needs of modern smart homes.

Additionally, the device is equipped with dual-band frequencies, which enhances its range and reduces interference for a more stable connection throughout your home. The modem also features multiple Ethernet ports, ensuring wired connections for devices like gaming consoles and smart TVs, further boosting performance and reliability. Security features like internet security and parental controls are built into the system, providing added peace of mind for families. Setting up the ARRIS G20 is straightforward with the SURFboard Central App, which guides you through the process and allows for easy network management and device monitoring.

However, it is worth noting that while the modem offers advanced upload optimization, this feature's effectiveness may depend on your internet service provider. Additionally, the upfront cost might be higher compared to renting a modem, but it can save you money in the long run by eliminating rental fees. The ARRIS G20 is not only suitable for home use but also for business environments that demand high-speed internet and robust security features.

Rating
9.1
Compatibility
Speed
Wi-Fi Standards

Most important from
20066 reviews

Compatibility
Compatibility with Xfinity is solid, despite initial setup hurdles that can be resolved with a bit of persistence.
Speed
Reliable performance with high-speed internet, perfect for streaming and gaming.
Wi-Fi Standards
Strong and stable connection, leveraging Wi-Fi 6 technology for better coverage and efficiency.
Number of Ethernet Ports
Compact size and dual Ethernet ports enhance usability and connectivity options.
Ease of Setup and Management
Easy setup process, especially with the SURFboard Central App guiding through configuration.
#3

Motorola MG8702 | DOCSIS 3.1 Cable Modem + Wi-Fi Router (High Speed Combo) with Intelligent Power Boost | AC3200 Wi-Fi Speed | Approved for Comcast Xfinity, Cox, and Charter Spectrum

Rating
7.9
Speed
Number of Ethernet Ports
Range

Most important from
15297 reviews

Speed
Performance is solid with great range and speed, making it a reliable choice for most users.
Number of Ethernet Ports
Some users may find the 2x2 Ethernet port configuration slightly inconvenient, but it's a minor issue.
Range
Performance is solid with great range and speed, making it a reliable choice for most users.
Ease of Setup and Management
Setup is incredibly easy, and the device gets you up and running quickly with the Xfinity app.

The Motorola MG8702 modem-router combo is well-suited for Comcast Xfinity users seeking to avoid rental fees while upgrading their home network. It supports DOCSIS 3.1, a future-proof standard that offers compatibility with the fastest internet plans from major providers like Comcast Xfinity, Cox, and Charter Spectrum.

With AC3200 Wi-Fi speeds and technologies like Power Boost, Range Boost, and AnyBeam WiFi Beamforming, it ensures robust and reliable Wi-Fi performance, making it a solid choice for homes with multiple devices such as gaming consoles, tablets, and smart TVs. The dual-band capabilities provide flexibility and better performance for both 2.4 GHz and 5 GHz devices. The device includes four Ethernet ports, which is beneficial for wired connections that require higher stability and speed, like gaming or streaming.

The intelligent mobile app simplifies setup and management, providing features such as guest network management, usage monitoring, parental controls, and network security alerts. This makes it user-friendly, even for those not highly tech-savvy. However, while it boasts strong security features and easy management, some users might find the initial setup process slightly challenging without prior experience. Additionally, despite its high performance, some users have reported occasional connectivity issues, which can be an inconvenience. At 2.15 pounds and with dimensions of 9.5 x 2.88 x 9.75 inches, it has a fairly standard size and weight for a modem-router combo. Essentially, the Motorola MG8702 is a robust and future-proof solution for upgrading your home network, particularly beneficial for those wanting to eliminate rental costs while enjoying high-speed internet and advanced Wi-Fi capabilities.

Rating
7.9
Speed
Number of Ethernet Ports
Range

Most important from
15297 reviews

Speed
Performance is solid with great range and speed, making it a reliable choice for most users.
Number of Ethernet Ports
Some users may find the 2x2 Ethernet port configuration slightly inconvenient, but it's a minor issue.
Range
Performance is solid with great range and speed, making it a reliable choice for most users.
Ease of Setup and Management
Setup is incredibly easy, and the device gets you up and running quickly with the Xfinity app.

Buying Guide for the Best Modem Router Combo Comcast Xfinities

Choosing the right modem-router combo for Comcast Xfinity can significantly enhance your internet experience. A modem-router combo combines the functions of a modem and a router into a single device, simplifying your setup and reducing clutter. When selecting the best modem-router combo, consider the following key specifications to ensure it meets your needs and provides reliable performance.
CompatibilityCompatibility refers to whether the modem-router combo works with your internet service provider (ISP), in this case, Comcast Xfinity. This is crucial because not all devices are compatible with all ISPs. To ensure compatibility, check the device specifications or the ISP's approved list of devices. If the device is not compatible, it won't be able to connect to the internet properly.
SpeedSpeed indicates the maximum internet speed the modem-router combo can handle. This is important because it determines how fast your internet connection can be. Speed is usually measured in megabits per second (Mbps). For basic browsing and streaming, a device supporting up to 300 Mbps may suffice. For heavy usage like gaming or 4K streaming, look for devices supporting speeds of 600 Mbps or higher. Choose a speed that matches your internet plan to avoid bottlenecks.
DOCSIS StandardDOCSIS (Data Over Cable Service Interface Specification) is a standard that defines how data is transmitted over cable systems. The latest version, DOCSIS 3.1, offers faster speeds and better performance compared to older versions like DOCSIS 3.0. If you want the best performance and future-proofing, opt for a DOCSIS 3.1 device. However, if your internet plan is not very high-speed, a DOCSIS 3.0 device might be sufficient.
Wi-Fi StandardsWi-Fi standards determine the wireless performance of the router part of the combo. The latest standard, Wi-Fi 6 (802.11ax), offers better speed, capacity, and efficiency compared to Wi-Fi 5 (802.11ac). If you have many devices connected to your network or need high-speed wireless performance, choose a device with Wi-Fi 6. For average home use, Wi-Fi 5 may be adequate.
Number of Ethernet PortsEthernet ports allow you to connect wired devices directly to the modem-router combo for a stable and fast connection. This is important for devices that require a reliable connection, such as gaming consoles or desktop computers. Typically, devices come with 2-4 Ethernet ports. Consider how many wired connections you need and choose a device with enough ports to accommodate them.
RangeRange refers to the coverage area of the Wi-Fi signal. A device with a larger range can cover more area, which is important for larger homes or spaces with multiple rooms. If you live in a small apartment, a device with a standard range will suffice. For larger homes, look for devices with extended range capabilities or consider additional Wi-Fi extenders.
Security FeaturesSecurity features protect your network from unauthorized access and cyber threats. Look for devices that offer WPA3 encryption, firewall protection, and automatic firmware updates. These features are important to keep your data safe and secure. If you have sensitive information or many connected devices, prioritize devices with robust security features.
Ease of SetupEase of setup refers to how simple it is to install and configure the modem-router combo. This is important for users who are not tech-savvy. Look for devices that offer user-friendly setup processes, such as mobile apps or web-based interfaces. If you prefer a hassle-free installation, choose a device known for its straightforward setup.

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