Best Modems in the UK: Where to Buy, What to Choose, and How to Save

Why picking the right modem makes a real difference

Think of your modem as the translator between your internet provider and everything you do online — streaming, video calls, gaming, or smart-home gadgets. Choose the wrong one and you’ll be blaming your Wi‑Fi for buffering, lag, or flaky connections. Choose the right one and your broadband will hum like a well-tuned engine. In the UK market you’ll find models from basic ADSL boxes to high-powered DOCSIS cable modems and combo units that double as routers, so it helps to know what you need before you splash out.

Types of modems available in the UK

Not all modems are created equal. Depending on whether your home uses copper phone lines, cable, or you’re on a fibre-to-the-home setup, you’ll want a specific type. Let’s break down the common options so you can match the tech to your service.

Cable modems (DOCSIS)

Cable modems use DOCSIS standards and are common if you’re connected via a cable provider. These boxes are tuned for high download speeds and are ideal for heavy streaming and online gaming. If your ISP supports DOCSIS 3.0 or 3.1, you can expect modern models to squeeze the most from cable plans, especially when paired with a fast router.

ADSL and VDSL modems

Homes connected over traditional phone lines will need ADSL or VDSL modems. VDSL (sometimes called FTTC when combined with a fibre cabinet) delivers better throughput than old ADSL. If your address is served by a fibre cabinet a few hundred feet from your house, VDSL is often the practical choice.

Combo modem-routers

Combo units are a convenient one-box solution — modem and Wi‑Fi router rolled into a single chassis. They reduce clutter and are usually easier to set up, but they can lock you into a single piece of hardware. If you like tweaking settings or upgrading Wi‑Fi later, a separate modem plus a dedicated router might be smarter.

Top UK retailers to buy modems from

Where you buy matters: stock, warranty, price comparison, and available support all vary by retailer. Below are the most reliable places to shop for modems across the UK, with a quick note on what each one is best for.

Currys (including Currys PC World)

Currys is one of the most prominent high-street electronics retailers in the UK, stocking a wide range of modems and combo units. You’ll find mainstream brands, seasonal deals, and helpful in-store staff if you prefer to see the box before buying. Currys often bundles accessories like Ethernet cables, which can save you a pound or two at checkout.

Argos

Argos is great for quick collection and reliable budget options. If you want to reserve online and pick up the same day, Argos is fast and convenient. The store tends to carry mainstream modems suitable for standard broadband plans, and its price points make it useful for shoppers on a budget.

Amazon UK

Amazon offers the broadest selection, including imports and niche models. Customer reviews on Amazon are valuable for real-world performance feedback, but be cautious about third-party sellers and warranties. Amazon is a strong place to compare many brands and find flash sales, particularly during major sales events.

John Lewis

John Lewis is known for reliable customer service and extended warranties on select tech. If you’re after higher-end modem-router combos from premium brands, John Lewis often stocks them and gives you the kind of post-purchase support that makes you feel secure about spending a little more.

Ebuyer, Scan, and CCL

These specialist online retailers are a favourite with PC builders and tech-savvy buyers. They stock more advanced and enterprise-grade modems and often provide detailed spec sheets you won’t get on the high-street. If specs matter to you — for example, multi-gig Ethernet ports or advanced firmware support — check these sites first.

AO.com and Overclockers UK

AO.com offers practical household electronics and has a straightforward returns approach, while Overclockers UK targets enthusiasts looking for high-performance hardware. Both retailers can be great sources for router combos and gaming-focused modems, especially when low latency and robust port options are priorities.

Key features to compare when shopping

When you’re comparing models across retailers, you’ll want a shortlist of features to judge them by. These elements are the most meaningful indicators of performance and long-term value.

Compatibility with your ISP

Compatibility is non-negotiable. Some ISPs require a specific modem firmware or a branded box for remote management. Before you buy, check whether your provider allows third-party hardware and whether the modem supports the protocol your ISP uses. A quick call or a glance at the ISP’s support page can save a lot of hassle.

Standards and future-proofing

Look for modern standards like DOCSIS 3.1 for cable, or VDSL2 for copper-fed fibre. On the Wi‑Fi side, aim for Wi‑Fi 6 if you want better throughput and lower latency with multiple devices. Buying a modem that supports current standards helps you avoid upgrading again in a year or two.

Ports, speeds, and wired connections

Check the Ethernet ports: gigabit ports are standard now, but multi-gig ports are appearing on premium models for power users. If you plan to connect a smart TV, games console, or NAS directly, ensure the modem (or router) has enough wired ports and supports link aggregation if you need extra bandwidth.

Wireless range measured in feet

Manufacturers sometimes list theoretical range, so look for real-world feedback from reviews. Typical dual-band routers will comfortably cover a small to medium house, roughly 1,500 to 3,000 square feet depending on building materials. If your home has thick walls or multiple floors, consider mesh systems or additional access points to blanket the space in Wi‑Fi.

Best modems for specific needs

Different users have different priorities. Here’s a quick guide to which modem types tend to work best for common use cases, and where to source them.

Best for gaming

Gamers want low latency, stable connections, and QoS features to prioritise traffic. Look for modems with strong NAT handling and plenty of USB/Ethernet ports. Retailers like Currys, Overclockers UK, and Scan stock gaming-focused combos and high-end routers that pair well with powerful cable modems.

Best for streaming and families

If you have multiple 4K streams or a house full of devices, choose a modem-router that supports Wi‑Fi 6 and multi-user MIMO. Amazon UK and John Lewis often list models with clear streaming-friendly specs and good return policies, which is handy if you need to test coverage at home.

Best budget options

On a tight budget? Argos and AO.com typically offer reliable budget modems that cover the basics without extra bells and whistles. These units are perfectly adequate for casual browsing, standard-definition streaming, and light home office use.

Renting vs buying: which is smarter?

Many ISPs rent out modems for a monthly fee, which can be convenient if you want hassle-free setup and remote support. But over the long run, buying your own modem usually saves money. If you plan to stay in the same home and on the same plan for more than a year, purchasing a compatible modem from retailers like Currys or Amazon often becomes cheaper than ongoing rental fees.

How to save money when shopping for a modem

Want to stretch your pound further? Compare prices across several stores, look for bundle deals that include cables or extended warranties, and keep an eye on seasonal sales like bank holidays or major shopping events. Specialist sellers sometimes offer open-box or refurbished units at lower prices; Scan and Ebuyer occasionally run these offers for high-end models.

Installation and setup tips

Installing a new modem is usually straightforward, but a little preparation goes a long way. Here are simple steps to get online fast and avoid common pitfalls.

Quick setup checklist

Before you start, make sure you have your ISP account details, a spare Ethernet cable, and the phone/cable line connection ready. Connect the modem, wait for the lights to stabilise, and then configure Wi‑Fi settings using a smartphone or laptop. If your ISP needs the modem registered, have your account number handy to speed up activation.

Security basics

Change the default admin password, set a strong Wi‑Fi passphrase, and enable automatic firmware updates if the modem supports them. Consider setting up a separate guest Wi‑Fi network for visitors and smart devices, which keeps your main network more secure.

Final buying checklist

To wrap things up, use this checklist before you buy: confirm ISP compatibility, choose the right type (DOCSIS, VDSL, or combo), check Wi‑Fi standard and port counts, compare prices across Currys, Argos, Amazon UK, John Lewis, and specialist stores like Ebuyer or Scan, and decide whether buying or renting makes more financial sense for your situation. Taking these steps will help you end up with a modem that fits both your needs and your wallet.

Keeping performance high after purchase

Once your modem is in place, periodic maintenance helps keep speeds consistent. Reboot the modem every so often, check for firmware updates through the admin panel, and reposition your router portion (if combo) to a central spot roughly eye-level and away from thick walls or large appliances. Think of it like tuning a radio — tiny adjustments can clear up interference and boost your signal.

Buying the right modem in the UK means balancing compatibility, performance, and price. Whether you pick up a model from a high-street retailer like Currys, grab a bargain at Argos, hunt for variety on Amazon UK, or choose a specialist from Scan or Overclockers UK, the key is doing a bit of homework. Match the modem to your ISP’s requirements, choose features that serve your household’s needs, and don’t forget to compare warranties and post-sale support. With the right choice, your home internet will be fast, reliable, and ready for whatever you throw at it — streaming marathons, late-night gaming, or working from home.

Conclusion: Invest in the right modem for the long term, shop smart across UK retailers, and prioritise compatibility and features over flash. Your online life will thank you.