We Use CookiesWe use cookies to enhance the security, performance,
functionality and for analytical and promotional activities. By continuing to browse this site you
are agreeing to our privacy policy
10 Best Xfinity Modems 2025 in the United States
#1
Winner
ARRIS (SB8200) - Cable Modem - Fast DOCSIS 3.1 32x8 Gigabit Cable Modem , Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | 1 Gbps Max Internet Speed, 4 OFDM Channels
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.
Customer Highlights
A summary of real customer reviews to highlight what shoppers are saying!Customer Highlights
A summary of real customer reviews to highlight what shoppers are saying!#2
ARRIS (S33) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit WiFi For Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 4 OFDM Channels 2 Year Warranty
The ARRIS (S33) modem is a solid choice for those looking to ditch rental fees and own their own modem. Featuring the latest DOCSIS 3.1 technology, it offers impressive speed capabilities, with support for up to 2.5 Gbps. This makes it a great fit for users who require high-speed internet for activities like gaming and streaming, as well as future-proofing for those who want to keep up with the latest ISP offerings. The S33 is compatible with major U.S. cable providers such as Comcast Xfinity, Cox, and Spectrum, making it versatile for a wide audience.
Customer Highlights
A summary of real customer reviews to highlight what shoppers are saying!Customer Highlights
A summary of real customer reviews to highlight what shoppers are saying!#3
NETGEAR Nighthawk Modem Router Combo C7000-Compatible with Cable Providers Including Xfinity by Comcast, Spectrum, Cox,Plans Up to 800Mbps | AC1900 WiFi Speed | DOCSIS 3.0
The NETGEAR Nighthawk Modem Router Combo C7000 is a capable device for Xfinity, Spectrum, and Cox users with internet plans up to 800Mbps. Featuring DOCSIS 3.0, it supports high-speed internet up to 1900Mbps with dual-band WiFi, ensuring robust and reliable performance. With coverage of up to 1,800 sq. ft. and the ability to connect up to 30 devices, it is well-suited for medium to large homes with multiple users and devices.
Customer Highlights
A summary of real customer reviews to highlight what shoppers are saying!Customer Highlights
A summary of real customer reviews to highlight what shoppers are saying!Top 10 Best Xfinity Modems 2025 in the United States
#1
Winner
9.8 score
ARRIS (SB8200) - Cable Modem - Fast DOCSIS 3.1 32x8 Gigabit Cable Modem , Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | 1 Gbps Max Internet Speed, 4 OFDM Channels
ARRIS (SB8200) - Cable Modem - Fast DOCSIS 3.1 32x8 Gigabit Cable Modem , Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | 1 Gbps Max Internet Speed, 4 OFDM Channels
DOCSIS Standard: DOCSIS 3.1
Speed: up to 1 Gbps
Compatibility: Comcast Xfinity, Cox, Spectrum
Built-in Router: No
Ethernet Ports: Two 1-Gigabit ports
Chosen by 1251 this week
ARRIS (S33) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit WiFi For Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 4 OFDM Channels 2 Year Warranty
ARRIS (S33) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit WiFi For Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 4 OFDM Channels 2 Year Warranty
DOCSIS Standard: DOCSIS 3.1
Speed: up to 2.5 Gbps
Channel Bonding: 4 OFDM channels
Compatibility: Comcast Xfinity, Cox, Spectrum
Ethernet Ports: 1 & 2.5 Gbps
Security Features: better protection
NETGEAR Nighthawk Modem Router Combo C7000-Compatible with Cable Providers Including Xfinity by Comcast, Spectrum, Cox,Plans Up to 800Mbps | AC1900 WiFi Speed | DOCSIS 3.0
NETGEAR Nighthawk Modem Router Combo C7000-Compatible with Cable Providers Including Xfinity by Comcast, Spectrum, Cox,Plans Up to 800Mbps | AC1900 WiFi Speed | DOCSIS 3.0
DOCSIS Standard: DOCSIS 3.0
Speed: Up to 1900Mbps
Compatibility: Xfinity, Spectrum, Cox
Built-in Router: Yes
Ethernet Ports: 4 Gigabit ports
Security Features: WPA/WPA2, NETGEAR Armor (30-day trial)
NETGEAR Nighthawk Cable Modem CM1200 - Compatible with all Cable Providers including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 2 Gigabits | 4 x 1G Ethernet ports | DOCSIS 3.1, Black
NETGEAR Nighthawk Cable Modem CM1200 - Compatible with all Cable Providers including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 2 Gigabits | 4 x 1G Ethernet ports | DOCSIS 3.1, Black
DOCSIS Standard: DOCSIS 3.1
Speed: up to 2Gbps
Channel Bonding: 32x8, OFDM 2x2
Compatibility: Xfinity, Spectrum, Cox
Built-in Router: No
Ethernet Ports: 4 Gigabit Ethernet ports
Security Features: basic security features
NETGEAR Nighthawk Cable Modem with Built-in WiFi 6 Router (CAX80) - Compatible All Major Providers incl. Xfinity, Spectrum, Cox | Plans Up to 6Gbps AX6000 speed DOCSIS 3.1, Black
NETGEAR Nighthawk Cable Modem with Built-in WiFi 6 Router (CAX80) - Compatible All Major Providers incl. Xfinity, Spectrum, Cox | Plans Up to 6Gbps AX6000 speed DOCSIS 3.1, Black
DOCSIS Standard: DOCSIS 3.1
Speed: up to 6Gbps
Channel Bonding: 32x8
Compatibility: Xfinity, Spectrum, Cox
Built-in Router: WiFi 6
Ethernet Ports: 2
Security Features: NETGEAR Armor software
Related Products
Up to 41% off
NETGEAR Nighthawk Cable Modem WiFi 6 Router Combo, AX2700, DOCSIS 3.1 - Compatible with Xfinity, Spectrum, Cox
NETGEAR Nighthawk Cable Modem WiFi 6 Router Combo, AX2700, DOCSIS 3.1 - Compatible with Xfinity, Spectrum, Cox
DOCSIS Standard: DOCSIS 3.1
Speed: up to 2Gbps
Compatibility: Xfinity, Spectrum, Cox
Built-in Router: Yes
Security Features: NETGEAR Armor
Hitron CODA56 Multi-Gigabit DOCSIS 3.1 Modem | 2.5 Gbps Max Internet Speeds | Certified with Xfinity, Charter Spectrum, Cox | 10x Faster Than DOCSIS 3.0 | 2.5 Gbps Ethernet Cable Modem ONLY
Hitron CODA56 Multi-Gigabit DOCSIS 3.1 Modem | 2.5 Gbps Max Internet Speeds | Certified with Xfinity, Charter Spectrum, Cox | 10x Faster Than DOCSIS 3.0 | 2.5 Gbps Ethernet Cable Modem ONLY
DOCSIS Standard: DOCSIS 3.1
Speed: up to 2.5 Gbps
Compatibility: Xfinity, Spectrum, Cox
Built-in Router: No
Ethernet Ports: 1 x 2.5 gigabit port
Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for Comcast Xfinity, Cox Gigablast, Spectrum | 2.5 Gbps Port | 2500 Mbps Max Internet Speeds
Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for Comcast Xfinity, Cox Gigablast, Spectrum | 2.5 Gbps Port | 2500 Mbps Max Internet Speeds
DOCSIS Standard: DOCSIS 3.1
Speed: 2.5 Gbps
Compatibility: Comcast Xfinity, Cox, Spectrum
Built-in Router: No
Ethernet Ports: 1 x 2.5 Gbps
Motorola MT7711 24X8 Cable Modem/Router with Two Phone Ports, DOCSIS 3.0 Modem, and AC1900 Dual Band WiFi Gigabit Router, for Comcast XFINITY Internet and Voice
Motorola MT7711 24X8 Cable Modem/Router with Two Phone Ports, DOCSIS 3.0 Modem, and AC1900 Dual Band WiFi Gigabit Router, for Comcast XFINITY Internet and Voice
DOCSIS Standard: DOCSIS 3.0
Speed: 400 Mbps
Channel Bonding: 24x8
Compatibility: Comcast XFINITY
Built-in Router: Yes
Ethernet Ports: 4
Security Features: Broadcom chipset
#10
7.4 score
NETGEAR Cable Modem CM500 - Compatible with All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 400Mbps | DOCSIS 3.0
NETGEAR Cable Modem CM500 - Compatible with All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 400Mbps | DOCSIS 3.0
DOCSIS Standard: DOCSIS 3.0
Speed: up to 400Mbps
Channel Bonding: 16x4
Compatibility: Xfinity, Spectrum, Cox
Built-in Router: No
Ethernet Ports: 1
How do we rank products for you?
Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.
Buying Guide for the Best Xfinity Modems
Choosing the right modem for your Xfinity internet service is crucial for ensuring a reliable and fast internet connection. The modem is the device that connects your home network to the internet, so it's important to pick one that meets your needs and is compatible with your service plan. Here are some key specifications to consider when selecting an Xfinity modem, along with explanations to help you make an informed decision.CompatibilityCompatibility refers to whether the modem works with your specific Xfinity internet plan. This is important because not all modems are compatible with all service plans. To navigate this, check the modem's specifications or the Xfinity website to ensure it supports your internet speed tier. If you have a high-speed plan, make sure the modem can handle those speeds. For lower-speed plans, a basic modem will suffice. Your need for compatibility is guided by your current or planned Xfinity service plan.
DOCSIS StandardDOCSIS (Data Over Cable Service Interface Specification) is the technology standard that modems use to deliver internet service. The most common standards are DOCSIS 3.0 and DOCSIS 3.1. DOCSIS 3.0 is suitable for most users and supports speeds up to 1 Gbps, while DOCSIS 3.1 is more future-proof and supports speeds up to 10 Gbps. If you have a high-speed plan or want to ensure your modem remains relevant for future upgrades, opt for DOCSIS 3.1. For standard internet usage, DOCSIS 3.0 is typically sufficient.
SpeedThe speed rating of a modem indicates the maximum internet speed it can handle. This is important because it determines how well the modem can support your internet activities. Modems are often rated in Mbps (megabits per second) or Gbps (gigabits per second). For basic browsing and streaming, a modem with speeds up to 300 Mbps is adequate. For gaming, 4K streaming, or multiple users, consider a modem with speeds of 1 Gbps or higher. Your internet usage patterns will guide you in choosing the right speed.
ChannelsChannels refer to the number of data streams the modem can handle simultaneously. This is important for managing internet traffic and ensuring a stable connection. Modems typically have a certain number of downstream (download) and upstream (upload) channels. For light internet use, a modem with 8x4 channels (8 downstream and 4 upstream) is sufficient. For heavy use, such as gaming or streaming, look for modems with 16x4 or 32x8 channels. Your internet usage and the number of devices connected will help determine the right number of channels.
Built-in RouterSome modems come with a built-in router, which combines the functions of both devices into one unit. This is important for convenience and reducing the number of devices you need. If you prefer a simple setup and have a small to medium-sized home, a modem-router combo can be a good choice. However, if you have a large home or require advanced networking features, a separate modem and router might be better. Your preference for simplicity versus advanced features will guide this decision.
ISP ApprovalISP approval means that the modem has been tested and certified by Xfinity to work with their service. This is important to ensure compatibility and optimal performance. To navigate this, check the list of approved modems on the Xfinity website. Choosing an approved modem ensures that you won't encounter issues with your internet service. Your need for a hassle-free experience will guide you to select an ISP-approved modem.