4G & 5G Mobile Broadband — No Landline Needed

Mobile Broadband UKFast home internet without a phone line — from £10/month

Silux Mobile is a UK mobile broadband provider and fast internet provider, using Three's 4G and 5G network to deliver fast home internet without a phone line, engineer visit or long-term contract. As a wireless broadband provider with no landline, we're ideal for renters, rural areas, and anyone wanting flexible broadband.

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Up to 300Mbps on 5G No Contract 99% UK Coverage

The Silux Mobile Promise

No price increases

Fixed price — no price increases during your contract

Free broadband upgrades

Free upgrades to faster plans and kit

No mid-contract rises

No annual or inflation-linked price hikes

No hidden fees

No setup fees, no engineer needed — cancel any time

What is Mobile Broadband?

Mobile broadband is high-speed internet delivered over a mobile (4G or 5G) network. Instead of a fixed phone line, you connect via a SIM card inserted into a MiFi router, 4G router, USB dongle or portable hotspot. Silux Mobile provides mobile broadband on Three's 5G network — one of the UK's fastest mobile networks, with no landline required, no engineer visits and plans from just £10/month.

4G vs 5G Mobile Broadband

4G Broadband

  • Typical speeds: 20–80 Mbps download
  • Excellent UK-wide coverage
  • Ideal for streaming, browsing, WFH
  • Available in rural areas
  • Great value from £10/month
View 4G Plans

5G Broadband

Recommended
  • Typical speeds: 100–300 Mbps download
  • Ultra-low latency for gaming
  • Ideal for 4K streaming, gaming, large downloads
  • Expanding UK coverage rapidly
  • Unlimited data plans available
View 5G Plans

Is Mobile Broadband Fast Enough?

Online ActivitySpeed RequiredMobile Broadband
Web browsing1-5 Mbps✅ Easily handled
Video calls (Zoom, Teams)5-15 Mbps✅ No problem
HD streaming (Netflix)5-25 Mbps✅ Smooth playback
4K streaming25-50 Mbps✅ With 5G
Online gaming10-25 Mbps✅ With 5G
Smart home devices1-5 Mbps each✅ Multi-device ready

Mobile Broadband Across the UK

Whether you're in a city centre or a rural village, Three's network has you covered.

London
Manchester
Birmingham
Leeds
Glasgow
Edinburgh
Bristol
Cardiff
Rural England
Rural Scotland
Rural Wales
Rural N. Ireland
Caravans & Motorhomes
Holiday Homes
Temporary Sites
Remote Offices
Check your postcode coverage

Mobile Broadband FAQs

What is mobile broadband?
Mobile broadband is internet access delivered via a 4G or 5G mobile network rather than a fixed phone line. You use a SIM card in a MiFi router, dongle or compatible router to connect multiple devices to the internet wirelessly.
How fast is mobile broadband UK?
With Silux Mobile on Three's 5G network, typical download speeds range from 50-150Mbps on 4G and up to 300Mbps on 5G. This is fast enough for 4K streaming, video calls, gaming and working from home.
Is mobile broadband better than fibre?
Mobile broadband is often faster to set up (no engineer needed), more flexible (30-day contracts), portable, and can be cheaper than fibre. It's ideal for renters, rural areas, temporary accommodation and people who move frequently. For very heavy data use, fibre may still be preferable.
Can I get unlimited mobile broadband?
Yes — Silux Mobile offers unlimited data mobile broadband plans on Three's 5G network. No data caps, no speed throttling after a certain usage point.
What equipment do I need for mobile broadband?
You need a 4G or 5G router, MiFi device, or USB dongle that accepts a SIM card. Many customers use their existing router if it has a SIM card slot. We can advise on compatible hardware.
Does mobile broadband work in rural areas?
Yes — Three's network covers 99% of the UK population outdoors. Mobile broadband is often the only viable high-speed internet option for properties in rural areas where fibre or cable isn't available.
Will my broadband price increase during my contract?
No. Your price is fixed for the life of your plan — there are no price increases during your contract and no annual inflation-linked price rises. What you sign up at is what you pay.
Are broadband upgrades free?
Yes. Silux Mobile offers free broadband upgrades — move to a faster plan or upgrade your router with no upgrade fee. Free upgrades are included as standard.
Is Silux Mobile a good mobile broadband provider?
Yes. Silux Mobile is a UK mobile broadband and fast internet provider on Three's 5G network — home broadband without a landline, from £10/month, with no price increases during your contract and free broadband upgrades.

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