Mobile Broadband in Portsmouth
Silux Mobile is a mobile broadband provider and fast internet provider in Portsmouth, with 4G and 5G home broadband from £10/month. No landline, no engineer, no contract. Works in any property with Three's signal across Hampshire.
Mobile broadband provider in Portsmouth — Silux Mobile uses Three's 5G and 4G network to deliver internet to your home or office without a phone line. As a Portsmouth broadband provider with no landline, we're perfect for renters, students and anyone who wants flexible internet without a long-term commitment. Plug in the SIM, connect your devices — done.
Mobile Broadband in Portsmouth — Key Benefits
No Landline Needed
Works in any Portsmouth property — flats, rented houses, student accommodation. No BT line required.
No Engineer Visit
No waiting weeks for an engineer. Order before 3pm, SIM arrives tomorrow. Broadband in Portsmouth the same day.
No Contract
30-day rolling. Cancel any month. Perfect if you move around Portsmouth or are in rented accommodation.
Three 5G Network
Three's 5G covers most of Portsmouth city centre and is expanding across Hampshire.
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
Broadband Plans for Portsmouth
No landline. No engineer. No contract. Works anywhere in Hampshire.
Broadband Unlimited
Unlimited
£18/mo
- Unlimited data
- 4G/5G router
- No contract
- Free delivery
5G Premium
Unlimited 5G
£28/mo
- Unlimited 5G priority
- Fastest speeds
- No contract
- Free delivery
Mobile Broadband Speeds in Portsmouth
| What you do online | Speed needed | Three 4G in Portsmouth | Three 5G in Portsmouth |
|---|---|---|---|
| Browsing & email | 2 Mbps | ✅ 20–60 Mbps | ✅ 100–300 Mbps |
| HD streaming | 5 Mbps | ✅ Yes | ✅ Yes |
| 4K streaming | 25 Mbps | ✅ Most areas | ✅ Always |
| Video calls / Zoom | 3 Mbps | ✅ Yes | ✅ Yes |
| Working from home | 10 Mbps | ✅ Yes | ✅ Yes |
| Gaming | 20 Mbps | ✅ Good | ✅ Excellent |
Mobile Broadband Portsmouth — FAQs
What is the best mobile broadband in Portsmouth?
Silux Mobile offers the best value mobile broadband in Portsmouth — from £10/month on Three's 5G network with no landline required and no contract. Plans start at 100GB and go up to truly unlimited data.
Can I get broadband in Portsmouth without a landline?
Yes. Silux Mobile's mobile broadband in Portsmouth requires no landline, no phone line and no engineer visit. Simply insert a SIM into a 4G/5G router and you have broadband. Works in rented flats, student houses and any property with Three's signal in Hampshire.
How fast is mobile broadband in Portsmouth?
On Three's 4G network in Portsmouth, typical speeds are 20–80 Mbps. In 5G coverage areas of Portsmouth and Hampshire, speeds reach 100–300 Mbps — fast enough for HD streaming, video calls, gaming and working from home.
Is mobile broadband cheaper than fibre in Portsmouth?
In most cases, yes. Mobile broadband from Silux Mobile starts at £10/month with no contract. Typical fibre deals in Portsmouth cost £25–45/month on 12–24 month contracts. Mobile broadband is especially good value if you rent or move frequently in Hampshire.
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 in Portsmouth 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 for Portsmouth customers.
Who is the best mobile broadband provider in Portsmouth?
Silux Mobile is a leading mobile broadband and fast internet provider in Portsmouth, delivering 4G and 5G home broadband on Three's network — no landline, no contract, from £10/month.
Are Silux Mobile broadband prices in Portsmouth inclusive of VAT?
Yes. There are no hidden fees on Silux Mobile broadband plans — the price displayed to Portsmouth customers is the price you pay, incl. VAT, with no setup, exit or engineer fees.