Three is offering unlimited 4G home broadband with the Huawei B535 WebBox from £20/month.

In the UK, Three is offering a 4G home broadband service with unlimited data on the Huawei B535 WebBox from £20/month. The service allows you to connect up to 64 devices to the internet, with download speeds of up to 300Mbit/s available on the router.

A key benefit of the new 4G home broadband service is it doesn’t require you to have a landline or cable connection. You can also get free next-day delivery of your router, and there’s a simple plug-and-play setup when the router arrives (with no need for an engineer visit).

In this article, we’ll review the WebBox service from Three and the Huawei B535 router that’s supplied. We’ll compare it to rival 4G home broadband services, including those that are available from Three and rival mobile networks like Vodafone and EE. Finally, we’ll look at the coverage that’s available on the WebBox service.

WebBox Price Plans

The Huawei B535 WebBox is Three’s new 4G-based home broadband service. Available as an alternative to the HomeFi B311 router and the Huawei AI Cube B900 router, the WebBox service starts from £20/month for unlimited data at 4G speeds.

The lowest-price deal currently available is when you take unlimited data on a 24-month contract. Normally, this will cost you £23/month, but you can get a discounted price of £20/month when you buy through this link. Shorter 12-month and 1-month contracts are also available if you’re happy to pay a little bit more upfront and would like the added flexibility:

Data AllowanceContract LengthUpfront PriceMonthly Price
Unlimited Data24 month contract£0£20/month
with special offer
Unlimited Data12 month contract£29£28/month
Unlimited Data1 month contract£79£32/month

See all Three WebBox Deals →

Unfortunately, it isn’t currently possible to use the WebBox on a Pay As You Go basis.

If you decide to replace your fixed-line broadband connection, it might be possible for you to cancel your landline if you don’t need it for phone calls. This would save you in the region of £20/month for line rental, potentially making the B535 WebBox close to a cost-neutral solution.

Exclusive Offers

As a special time-limited offer, Three is offering a £3/month discount on the Huawei B535 with unlimited data. This means you can currently get it for just £20 rather than £23 per month on a 24-month contract.

To get the £3/month discount, you’ll need to purchase the Huawei B535 through this special link. It isn’t necessary to use any voucher codes during checkout but you’ll need to make sure you complete the entire purchase online.

Get £3/month discount on Huawei B535 →

Huawei B535 WebBox Router

Three’s WebBox service comes with a Huawei B535 router included. The router will connect to Three’s 3G and 4G network, producing a wi-fi network that up to 64 devices are able to connect to at one time. This includes all of the devices you have at home (including your laptop, tablet, smartphone, smart TV and other smart devices).

The Huawei B535 router supports up to Category 7 LTE download speeds (up to 300Mbit/s download and up to 100Mbit/s upload). However, Three says average download speeds will be closer to 14Mbit/s on the service (depending on the coverage available where you live).

The Huawei B535 has dual-band Wi-Fi connectivity (including 802.11ac wi-fi at 5GHz). This allows you to have up to 64 devices connected wirelessly to your router at any one time. In addition, there are also four Gigabit Ethernet sockets allowing you to connect wired devices to your home network.

If you’d like to attach an external antenna to your router, the Huawei B535 has two sockets for a SMA antenna. This can be used to improve the coverage and speeds you get on your router, especially if you’re living in a rural area where the coverage is a bit weaker.

You can see the full specifications for the Huawei B535 on Three’s website.

HomeFi, WebBox and AI Cube: Side-By-Side Comparison

The Huawei B535 WebBox is Three’s latest 4G home broadband router. In terms of price, it sits in between the Huawei HomeFi (B311) and the Huawei AI Cube (B900):

Three HomeFi
(Huawei B311)
Three WebBox
(Huawei B535)
Three AI Cube
(Huawei B900)
Home Broadband Plans
Price:From £21/monthFrom £20/monthFrom £25/month
Unlimited Data:£21/month£20/month£25/month
Contract Length:1-24 months1-24 months1-24 months
Mobile Connectivity
4G Connectivity:Category 4 LTECategory 7 LTECategory 6 LTE
4G Download Speed:Up to 150 Mbit/s downloadUp to 300 Mbit/s downloadUp to 300 Mbit/s download
4G Upload Speed:Up to 50 Mbit/s uploadUp to 100 Mbit/s uploadUp to 50 Mbit/s upload
4G Bands:LTE bands 1, 3, 7, 8 & 20LTE bands TBCLTE bands 1, 3, 7, 8, 20, 32 & 38
External Antenna:Yes, 1x SMA connectorYes, 2x SMA connectorsNo
Home Network Connectivity
Dual-Band Wi-Fi:NoYesYes
Wi-Fi Connectivity:802.11b/g/n802.11a/b/g/n/ac802.11a/b/g/n/ac
Wi-Fi Devices:Up to 32 devicesUp to 64 devicesUp to 64 devices
Ethernet:1 Gigabit Ethernet port4 Gigabit Ethernet ports1 Gigabit Ethernet port
Model:Huawei B311Huawei B535Huawei B900
Other Features:--360° Alexa smart speaker
Review:Three HomeFi ReviewThree WebBox ReviewThree AI Cube Review

In our opinion, the Huawei B535 WebBox should now be your go-to choice when you’re looking for a 4G broadband router on Three. You’ll get modern specifications like Category 7 LTE download speeds along with 802.11ac dual-band wi-fi. Both of these features will allow you to maximise your home broadband performance. The inclusion of 4 Gigabit Ethernet sockets for connecting wired devices is also very welcome, along with the 2 SMA sockets for connecting an external antenna.

The Huawei B535 has 4 Gigabit Ethernet sockets and 2 SMA connectors for attaching an external antenna.

With the AI Cube, which is slightly more expensive at £25/month, you’ll additionally get a 360° Amazon Alexa smart speaker built-in. There are some sacrifices to be made elsewhere, however, in terms of network connectivity.

For instance, the AI Cube router only has a single Gigabit Ethernet socket for connecting wired devices. There’s also no way to attach an external antenna. Typically, in order to maximise the signal strength of your connection, it’s recommend you place your router close to a window, ideally in an upstairs room and facing towards your nearest mobile mast. This doesn’t always align with where you’d like to use your smart speaker (normally placed fairly centrally in your living room). For this reason, it may work out to be a more practical solution getting a Huawei B535 WebBox and using it in conjunction with a standalone Amazon Echo speaker (available for around £60).


The AI Cube has a built-in Amazon Alexa smart speaker.

The closest alternatives to the Huawei B535 WebBox are Three’s HomeFi router and AI Cube router.

If you’re looking for a lower cost alternative to the Huawei B535, Three’s HomeFi router is available for just £21/month. You’ll get a more basic router with up to Category 4 LTE speeds and single-band 2.4GHz Wi-Fi:

ServiceData AllowanceContract LengthUpfront PriceMonthly Price

Three HomeFi
Unlimited Data24 month contract£0£21/month

Three HomeFi
Unlimited Data12 month contract£29£26/month

Three HomeFi
Unlimited Data1 month contract£59£31/month

The Huawei AI Cube is slightly more expensive than the Huawei B535 WebBox. Starting from £25/month for unlimited data, you’ll get a built-in Amazon Alexa smart speaker in the AI Cube.

ServiceData AllowanceContract LengthUpfront PriceMonthly Price

Three AI Cube
Unlimited Data24 month contract£0£25/month

Three AI Cube
Unlimited Data12 month contract£49£32/month

Three AI Cube
Unlimited Data1 month contract£149£32/month

For more information, see Three’s product pages for the HomeFi and AI Cube.

Other Networks

Vodafone’s GigaCube service has unlimited data from £50/month.

Vodafone offers a GigaCube home broadband service from £30/month (£50/month if you’d like unlimited data). You’ll get a Huawei B528 router if you choose the 4G GigaCube service, with no upfront cost on an 18-month contract:

ServiceData AllowanceContract LengthUpfront PriceMonthly Price

Vodafone GigaCube 4G
100GB Data18 month contract£0£30/month

Vodafone GigaCube 4G
100GB Data1 month contract£100£30/month

Vodafone GigaCube 4G
200GB Data18 month contract£0£40/month

Vodafone GigaCube 4G
200GB Data1 month contract£100£40/month

Vodafone GigaCube 4G
Unlimited Data18 month contract£0£50/month

Vodafone GigaCube 4G
Unlimited Data1 month contract£100£50/month
To show you the most relevant price plans, 3 similar plans have been hidden. .

EE also offers a 4G home broadband service in the form of 4GEE Home. Unfortunately, EE doesn’t currently offer any unlimited data plans. Instead, you’ll need to choose a data allowance from 10GB per month:

ServiceData AllowanceContract LengthUpfront PriceMonthly Price

4GEE Home
10GB Data18 month contract£129.99£25/month

4GEE Home
100GB Data18 month contract£0£35/month

4GEE Home
50GB Data18 month contract£0£35/month

4GEE Home
100GB Data1 month contract£100£35/month

4GEE Home
50GB Data1 month contract£100£35/month

4GEE Home
200GB Data18 month contract£0£40/month

4GEE Home
200GB Data1 month contract£100£40/month

4GEE Home
300GB Data18 month contract£0£45/month

4GEE Home
300GB Data1 month contract£100£45/month

4GEE Home
500GB Data18 month contract£0£50/month

4GEE Home
500GB Data1 month contract£100£50/month
To show you the most relevant price plans, 5 similar plans have been hidden. .

For more information, please see the Vodafone and EE websites. You can also read our full guide to 4G home broadband services.

5G Home Broadband

If you’re looking for a 5G-powered home broadband solution, you can currently choose from Three’s 5G Home, Vodafone’s GigaCube 5G and EE’s 5GEE WiFi.

Three’s 5G Home service is currently available to customers in selected parts of London. You’ll pay £35/month for unlimited data on a 12-month contract.

For more information, see our full guide to 4G & 5G home broadband services in the UK.


3G & 4G Coverage

In the UK, Three currently offers 99.8% population coverage. This includes 99.8% coverage on 4G, as well as 98.7% coverage on 3G. The Huawei B535 can access both 3G and 4G coverage from Three.

Before purchasing the Huawei B535 WebBox from Three, it’s strongly recommended that you check the coverage in your area. You can do this by entering your postcode on Three’s online coverage map.

Check Three Coverage ( →

If you’re travelling abroad to other countries, it’s possible to use the Huawei B535 through the Go Roam offer.

For more information, please see our full review of the coverage on Three.

5G Coverage

As of August 2019, Three has started to roll out 5G coverage across the UK.

At launch, 5G coverage is only available to customers in London. However, a total of 25 towns and cities should receive 5G coverage before the end of the year:

Now Live1 towns and cities are live on Three 5G (September 2019)
Planned &
24 towns and cities planned
Birmingham, Bolton, Bradford, Brighton, Bristol, Cardiff, Coventry, Derby, Edinburgh, Glasgow, Hull, Leeds, Leicester, Liverpool, Manchester, Middlesbrough, Milton Keynes, Nottingham, Reading, Rotherham, Sheffield, Slough, Sunderland, Wolverhampton (End of 2019)

Unfortunately, it isn’t possible to access 5G coverage on the Huawei B535 WebBox. If you’re living in a 5G coverage area and would like access faster 5G speeds, consider signing up for Three’s 5G home broadband service instead (available from £35/month on 12-month contract).

There’s more information about the 5G roll-out on Three’s website.

More Information

For more information about the Huawei B535 WebBox, please see Three’s official website.

Your Comments 25 so far

We'd love to hear your thoughts and any questions you may have. So far, we've received 25 comments from readers. You can add your own comment here.

  • Hi Ken

    Great article – thanks very much for the review, it’s really helping with my decision to go for 4G home broadband in my new place. I’m coming up with almost price parity on going with a 12 month contract with a B535 with three and buying a B525 from Amazon and just getting a sim-only contract. Is the 535 much better for day-to-day use to warrant getting it over an unlocked 525? Thanks again!

    • Hi Lewis,
      Thanks for your comment. I don’t think there are really that many differences of note between the Huawei B525 and the Huawei B535. The latter supports Category 7 LTE as opposed to Category 6 LTE, so in theory you could get faster uploads on the B535. The B535 is also sold as a home broadband package (whereas with the B525 you’ll be building your own solution so you won’t necessarily have the same level of support from Three).
      On the other hand, buying an unlocked B525 and getting a unlimited data SIM card will give you an allowance of minutes which you can use through a RJ11 phone. For some people, that makes it a more suitable solution if you’re looking to replace your landline connection.

      • Thanks, Ken – much appreciated! I’ve gone for the B525 as it was £100 and I hadn’t considered using it as a landline. Thanks again 🙂

  • Hi, stumbled across your site while researching my Huawei B525..

    I am with Three on their unlimited 4g plan, I bought my own modem,as above, they sent me a sim.. I was getting 52mb down and 47mb up until today, it seemed like it was capped so after spending over an hour on the phone to them, most of it waiting, it turns out they sent me the WRONG sim, apparently Three have different sims for DATA ONLY.

    They have agreed to cancel my 24 month contract without charge as it was their fault, I have now just signed up to Threes 24 month contract with their Huawei B535 modem for £18 a month.

    Looks like Ill have a spare kodem for sale soon 🙂

    Loved reading through here and about to read your Antenna Guide.

  • Murray Elliot said:

    I got the 535 today (after returning the 311 THREE sent me by default as couldn’t find the WebBox on their website). Attached a Poynting antenna sitting on the windowsill. With the 535, and the antenna, I’m measuring 20-27Mb/s download pretty consistently (3Mb/s upload)

    For context, we live in the country in a stone cottage with thick walls and small windows. At best I was getting 7Mb/s on my phone and 3Mb/s on our Sky copper wired “broadband”!

    Happy bunny

    • Hi Murray,
      Which Poynting antenna did you purchase? I’ve just ordered the 535 from Three and I also live in a remote area. I currently get just over 1mbps download in the evening. If I lean out of an east facing bedroom window and look north with binoculars I can see a mast of top of the church. I’m
      Expecting much better speeds with the 535 😉

      • Murray Elliot replied:

        Hi Jon.
        I bought a simple, cheap Poynting Omni indoor/outdoor SiSo 3G/4G antenna from Amazon
        My thinking was that if I was able to get 2-3 bars with my phone outdoors, I probably wouldn’t need too much gain.

        Most of the time the router shows 5 bars, dropping to 4 bars occasionally. It sits on my windowsill. If your conditions are less favourable, then perhaps the 4G-XPOL-A0001 Cross Polarised 4G Omni LT Antenna would be more appropriate, or if directional gain is required, then the 4G-XPOL-A0002 would give you more gain.

        • Hi Murray,
          Thank you for the information.
          I am very happy and actually quite staggered by the speeds I’m getting. I’ve tried the router in various different places around the house and settled on a middle window sill upstairs. The front of the router is pointing in the direction of the mast.
          This morning I got 52.7 download and 21.2 upload! That’s with no external aerial!
          I just have one bad spot in the house and unfortunately that’s in my office so I’ll have to get a booster… or just move the router when I’m working in there 😉
          So far I am very, very impressed 🙂

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