The Huawei AI Cube on Three offers unlimited 4G home broadband with a built-in Amazon Alexa speaker from £25/month.

Three is currently offering a Huawei AI Cube B900 router with unlimited data for £25/month.

The AI Cube router, which also doubles up as an Amazon Alexa smart speaker, gives you high-speed 4G broadband on up to 64 devices. This is delivered without the need for a phone line or cable, making it a potential alternative for fixed home broadband.

In this article, we’ll review the Huawei AI Cube B900 router from Three, including the price plans available and the capabilities of the device. We’ll also compare it to alternative devices like the Huawei B535 HomeFi Plus router which is available for £20/month.

Huawei AI Cube Price Plans

For many people, 4G technology now provides a viable alternative to fixed home broadband that’s delivered through a phone line or cable. As it uses mobile network technology, you can get a high-speed broadband service that isn’t restricted by the speeds you can get through a phone line or cable. You can also get your broadband connection set up quickly without an engineer visit, and there’s the flexibility to bring your broadband connection with you to other places.

At present, Three offers a choice of two 4G-powered home broadband routers: the Huawei B535 HomeFi+ which costs £20/month or the Huawei AI Cube B900 which costs £25/month.

As the more expensive of the two devices, the Huawei AI Cube B900 is notable because it also doubles up as an Amazon Alexa smart speaker. This means you can use the AI Cube to control smart home devices and for listening to music. It also supports Category 6 LTE download speeds (up to 300Mbit/s) along with dual-band Wi-Fi (802.11ac).

The Huawei AI Cube B900 is available on three price plans at present. There’s an unlimited data plan costing £25/month with no upfront cost on a 24-month contract. Alternatively, shorter 12-month and 1-month plans are also available, costing £32/month. There’s a £49 upfront fee on a 12-month contract, or a £149 upfront fee on a 1-month contract.

Data AllowanceContract LengthUpfront PriceMonthly Price
Unlimited Data24 month contract£0£25/month
Unlimited Data12 month contract£49£32/month
Unlimited Data1 month contract£149£32/month

See all Three AI Cube Deals →

If you replace your fixed line broadband connection with an AI Cube router, it may be possible to cancel your landline connection. This can save you around £20/month, offsetting much of the cost of getting an AI Cube router. You’ll need to find an alternative way to make phone calls if you do this (e.g. using your mobile phone instead of a landline, or making internet-based phone calls using your AI Cube).

The AI Cube is no longer available from Three on a Pay As You Go basis. As an alternative, you can buy the Huawei AI Cube at Amazon for around £220. Note that you’ll still need to get a SIM card separately for your AI Cube if you do this, so it’s likely the overall cost will be more (as you’ll typically need to pay at least £20/month for an unlimited data SIM card).

Huawei AI Cube B900

The Huawei AI Cube B900 is Three’s most expensive 4G home broadband router. The router supports Category 6 LTE speeds (up to 300Mbit/s download and 50Mbit/s upload). However, most users will get a more realistic download speed of around 30Mbit/s depending on location. The AI Cube’s home broadband service can be shared with up to 64 devices at one time using the dual-band wi-fi connection. There’s also an Ethernet socket for connecting a wired device to your network.

In addition to working as a 4G router, the AI Cube doubles up as a smart speaker solution. It has four built-in microphones with far-field voice recognition and a 360° speaker. This means you can use it in much the same way as you would an Amazon Echo (for instance, to control your smart home devices, to make internet-based phone calls and to listen to music through online steaming services). The AI Cube’s interface allows you to control everything by voice, simply by asking Alexa to do something for you.

Compared to the Huawei B535 HomeFi Plus router, you’ll get fairly similar specifications on the AI Cube with the addition of an Alexa-powered smart speaker. Both routers support a maximum download speed of 300Mbit/s and have dual-band Wi-Fi connectivity on up to 64 devices (including 802.11ac wi-fi at 5GHz).

The AI Cube can be used to control your home and to listen to music, in addition to being a router.

On the other hand, being a 2-in-1 device, there are some trade-offs to be made in the AI Cube’s design. For instance, the optimal location to place a smart speaker in your home is normally fairly centrally in the living room. This may differ from the optimal location for a 4G router which is often closer to a window sill (to maximise the signal strength of your 4G connection). The AI Cube also lacks support for an external antenna, meaning this option isn’t available to you for improving the coverage on your device. The AI Cube also has just one Ethernet socket, whereas the Huawei B535 has 4 Gigabit Ethernet sockets.

For customers living in an urban area with fairly good mobile coverage, the trade-offs required to use an AI Cube are probably fairly small (you can benefit from the Alexa capabilities, and you probably didn’t need to use the external antenna anyway). However, for customers living in suburban or rural areas, a more traditional router like the Huawei B535 will be a much safer bet.

The following table shows a side-by-side comparison of the Huawei B535 HomeFi Plus and the Huawei AI Cube B900 routers:

Three HomeFi Plus
(Huawei B535)
Three AI Cube
(Huawei B900)
Home Broadband Plans
Price:From £20/monthFrom £25/month
Unlimited Data:£20/month£25/month
Contract Length:1-24 months1-24 months
Mobile Connectivity
4G Connectivity:Category 7 LTECategory 6 LTE
4G Download Speed:Up to 300 Mbit/s downloadUp to 300 Mbit/s download
4G Upload Speed:Up to 100 Mbit/s uploadUp to 50 Mbit/s upload
4G Bands:LTE bands 1, 3, 7, 8, 20, 28, 32 & 38LTE bands 1, 3, 7, 8, 20, 32 & 38
External Antenna:Yes, 2x SMA connectorsNo
Home Network Connectivity
Dual-Band Wi-Fi:YesYes
Wi-Fi Connectivity:802.11a/b/g/n/ac802.11a/b/g/n/ac
Wi-Fi Devices:Up to 64 devicesUp to 64 devices
Ethernet:4 Gigabit Ethernet ports1 Gigabit Ethernet port
Model:Huawei B535Huawei B900
Other Features:-360° Alexa smart speaker
Review:Three HomeFi Plus ReviewThree AI Cube Review

You can see the full specifications for Huawei’s AI Cube B900 on Three’s website.

You can combine the Huawei B535 router with something like a standalone Amazon Echo speaker. This is available for about £60. A standalone Amazon Echo can be placed anywhere in your home: it isn’t necessary to balance this against where you’ll get the best 4G network coverage.


The closest alternative to getting a Huawei AI Cube B900 is getting the Huawei B535 HomeFi+ router.

The following table shows a list of price plans available with the Huawei B535 HomeFi Plus:

ServiceData AllowanceContract LengthUpfront PriceMonthly Price

Three HomeFi Plus
Unlimited Data24 month contract£0£20/month
with special offer

Three HomeFi Plus
Unlimited Data12 month contract£29£27/month

Three HomeFi Plus
Unlimited Data1 month contract£79£31/month

For more information, please read our full review of the Huawei B535. Previously, Three also offered the Huawei B311 HomeFi router but this was withdrawn from sale in September 2019.

Other Mobile Networks

If you’d like to look at 4G-powered home broadband solutions from other mobile networks, you can also consider Vodafone’s GigaCube and EE’s 4GEE Home Router.

Vodafone’s 4G-based GigaCube service starts from £30/month and comes with a Huawei B528 4G router. This has a cylindrical design like the Huawei AI Cube, but it doesn’t have the built-in smart speaker capabilities. On the entry-level £30/month plan, you’ll only get 100GB of data included. This increases to 200GB for £40/month and unlimited data for £50/month.

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 plans, 3 similar but more expensive plans have been hidden. .

See the Vodafone website for more information or read our full review of the Vodafone GigaCube.

On EE, you can get the Alcatel-produced 4G Home Router on a variety of price plans from £25/month. On the most basic plan, you’ll only get a measly 10GB of data, whereas most users will want to choose a plan with at least 100GB or 200GB of data per month. This is likely to cost you substantially more.

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 plans, 5 similar but more expensive plans have been hidden. .

For more information, read our full review of EE’s 4G home broadband service or visit the EE website.

5G Home Broadband

If you’re looking for a home broadband solution that gives you 5G download speeds, 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 London. You’ll pay £35/month for unlimited data on a 12-month contract.

ServiceData AllowanceContract LengthUpfront PriceMonthly Price

Three 5G Home
Unlimited Data12 month contract£0£35/month

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


Three offers 99.8% population coverage on its 4G network and 98.7% population coverage on its 3G network.

Before purchasing an AI Cube on 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, it’s also possible to use the AI Cube in other countries through the Go Roam offer.

For more information about the coverage on different mobile networks, please see our in-depth guide to mobile network coverage in the UK.

More Information

For more information about the Huawei AI Cube and Three’s home broadband service, please see Three’s official website.

Your Comments 112 so far

We'd love to hear your thoughts and any questions you may have. So far, we've received 112 comments from readers. You can add your own comment here.

  • Hi
    I’ve ordered a AI cube from three as WiFi is very bad from talk talk giving me about .3 m, I have a iPhone XR on ID mobile and in a goos spot up in window I can get about 8.0 m, I’m hoping thr cube will be as good, but if not can I connect a external antena

      • Thank you
        Signal is actually really good compared to land line WiFi,
        I’ve got another question if that’s ok?
        Can you tell me how do I connect a TP link AV 600 WiFi extender?

        • Hi Steve,
          Without being an expert on the TP Link AV 600, I believe it’s simply a matter of connecting the powerline adapter to your Huawei AI Cube B900 using Ethernet (in the same way that you’d connect it to any other router).

  • I’ve got a HUAWEI AICube B900 and it was great for a few months but now we seem to be suffering some range problems with it in the house. Nothing has changed or been moved. Both my mobile phone (iPhone 7) and my Wife’s Samsung disconnect where previously they’d been fine. I just tried to log on to the cube through my Chrome web browser using the IP address but I get the folowing response:
    “This page isn’t working192.168.8.1 didn’t send any data.
    Any suggestions please as Three haven’t been very helpful?
    Thanks in advance

    • Hi Jim,
      Sorry to hear about the issues you’ve been having with the AI Cube. It’s odd that you’re getting that error when trying to access the router administration screen. Normally, that might indicate something like being connected to the wrong wi-fi network (as the fact you’re online would imply you’re connected through the router), or potentially a hardware issue with the router that’s stopping you from accessing the admin screen. If it’s the latter, Three Customer Services would unfortunately need to take a look into this for you and/or provide you with a replacement device if necessary.

      • Thanks for the reply Ken. I resolved the problem accessing the router and the problem with range/bandwidth within the house seems to be the fact that the TP-Link extender used for our home alarm drags all the bandwidth and kills the ability to use the internet. I have an alarm engineer coming out Thursday to look at a wifi bridge solution.

Load more comments (103)

Leave a Reply