SIM & Broadband Bundles in Cardiff
Combine SIM and home broadband in Cardiff from £21.95/month — all on Three's 5G network.
Silux Mobile bundles for Cardiff: pair a SIM with 4G/5G home broadband and pay less than buying separately. Delivered across Cardiff with no credit check.
Why Cardiff Chooses Silux Bundles
Delivered to Cardiff
Free Royal Mail Tracked 48 delivery (2–3 working days) to Cardiff and Cardiff — SIM and router in one parcel.
Three 5G in Cardiff
Mobile and home broadband on Three's 5G/4G network, with strong coverage across Cardiff.
Cheaper Together
A SIM and broadband bought as a bundle costs less than buying the two separately.
Price Locked
Your bundle price is fixed for the term — no mid-contract increases. Terms from 12 to 36 months.
The Silux Mobile Promise
No price increases
Your price is locked — no price rises during your contract, ever
Free upgrades
Upgrade your plan or SIM for free, any time
No credit checks
No credit checks on our SIM contracts
No hidden fees
No hidden fees, no price increases
Bundles — Delivered to Cardiff
SIM + broadband on Three 5G. Terms from 12 to 36 months.
Lite Bundle
Broadband + SIM
£21.95/mo
- Broadband Lite router
- Unlimited SIM
- Unlimited data
- 36-month plan
Premium Bundle
5G Broadband + SIM
£29.95/mo
- Premium 5G router
- Unlimited SIM
- Fastest speeds
- 36-month plan
Two SIM Bundle
2 × Unlimited SIM
£26.50/mo
- Two unlimited SIMs
- Calls, texts & data
- 5G included
- 24-month plan
Three 5G Coverage in Cardiff
Three's 5G/4G network covers Cardiff and Cardiff for both mobile and home broadband — over 99% UK population coverage.
Check Your Cardiff PostcodeBundles in Cardiff — FAQs
What is in a Silux Mobile bundle in Cardiff?
A bundle pairs a home broadband package — router included and delivered to Cardiff — with an unlimited SIM, on one monthly price. Bundles start at £21.95/month.
How much do bundles cost in Cardiff?
The Lite Bundle (Broadband Lite plus an unlimited SIM) is £21.95/month on a 36-month plan, and the Premium Bundle with 5G broadband is £29.95/month. Shorter 12 and 24-month terms are available at a slightly higher monthly price.
How long is a bundle plan?
Bundles run for 12, 24 or 36 months — the longer the term, the lower the monthly price. A bundle includes broadband, so it is not a rolling monthly plan.
Do I need a landline or an engineer in Cardiff?
No. The broadband in your bundle runs on Three's 4G/5G network — no phone line, no engineer and no installation. The router arrives by free Royal Mail Tracked 48 delivery to Cardiff.
Will my bundle price rise mid-contract?
No. There are no mid-contract or inflation-linked price rises. The price you start at in Cardiff is the price you keep.
Do you run a credit check in Cardiff?
No. There are no credit checks, so anyone in Cardiff can order a bundle regardless of credit history.