SIM Only Deals UK

SIM only deals are mobile phone plans where you get just the SIM card — no handset included. You keep your existing phone, pay less per month, and choose from flexible monthly plans or 12-month contracts.

The best SIM only deal depends on your needs. Silux Mobile offers competitive SIM only deals on Three, Vodafone, EE and O2, unlimited data options, and a choice of 30-day rolling plans or 3, 6, 12 or 24-month contracts from as little as £5/month.

Yes — all Silux Mobile SIM only deals include 5G at no extra charge. 5G is available on Three, Vodafone, EE and O2 in major UK cities and is expanding rapidly.

Yes — our SIM cards work with any unlocked smartphone, tablet, or device. If your phone is locked to another network, you'll need to unlock it first.

By not paying for a handset, you only pay for your minutes, texts and data — making monthly bills significantly cheaper. Many customers save £20-30/month by switching to SIM only.

No. Silux Mobile never raises your price mid-contract — there are no price increases during your contract and no annual or inflation-linked price rises. The price you sign up at is the price you pay.

Yes. Upgrades are free — move to a bigger data plan or a better SIM whenever you like at no extra cost, with no upgrade or admin fees.

No. There are no credit checks on our SIM contracts, so you can join Silux Mobile regardless of your credit history. No credit check is required to order or activate your SIM.

Yes. Silux Mobile is a UK SIM-only and mobile network provider with SIMs on Three, Vodafone, EE and O2, with cheap SIM deals, no price rises, free upgrades and no credit checks on SIM contracts.