Three broadband deals December 2025

Why choose Three broadband?

Mobile broadband providers like Three offer a level of flexibility that you wouldn’t get with standard fixed line broadband. It’s ideal if you need broadband somewhere that doesn’t have an Openreach connection, or if you only need it temporarily. You can even get Three home broadband on a 30-day rolling contract, meaning you can cancel it whenever you need to – or just pick up your router and take it with you when you move.

Three offers good speeds too, at reasonable prices, that compete well with standard broadband packages. Because it’s 5G/4G-based, there’s no need for a phone line with Three broadband. If you do want a phone, you’d need to rely on your mobile, or get VoIP apps for your devices. The other downside is that mobile broadband is a little less reliable than fixed line. The exact speed and quality of your service are much more variable depending on your location and your home. You’re also likely to have a bit more lag, which could affect things like video calls and online gaming.

There are two download speeds available with Three broadband, depending on what coverage is available in your area:

5G – average download speeds of 150Mbps
4G – average download speeds of 10Mbps

For comparison, standard (fixed line) fibre optic broadband usually has speeds around 30-80Mbps. Meanwhile, ultrafast full fibre broadband can go up to much faster speeds of 1Gbps (1,000Mbps).

What are Three’s broadband bundles?

Put simply, there aren’t any. All you get with Three broadband is a straightforward mobile broadband connection. You can’t add extras such as a landline phone or TV package, which you often can with standard broadband.

Of course, because Three is a mobile network, you can get your mobile phone or SIM from them too, and pay for both your broadband and mobile in the same bill.

Is Three broadband-only?

Yes. Because it’s mobile broadband – delivered via a 5G or 4G hotspot router, rather than by connecting to a physical socket – all you get from Three broadband is an internet connection and nothing else.

There’s no need for a phone line or even an Openreach socket in your home.

For home broadband, it’s worth seeing what you can get from fixed-line providers, such as BT, Sky, Virgin Media, TalkTalk, Plusnet, or Vodafone. The ultimate reliability – and fastest speeds – will come from a full fibre package, if you’re in a postcode where it’s available. Use our broadband checker to see what you can get.

If you’re looking at Three because you want broadband on a temporary basis without committing to a long-term contract, take a look at other providers that offer rolling 30-day plans such as NOW Broadband.

And if you’re specifically looking for 5G/4G broadband that doesn’t use fixed lines, you can also get similar mobile home broadband from Vodafone, O2, and EE. Visit our mobile broadband hub to find out more and compare packages, and check mobile coverage in your area to see which network gives you the best signal in your home.