SIM Only Plans in Kingston upon Thames
SIM only plans in Kingston upon Thames from £5/month on Three's 5G — data-only, unlimited and multi-network options.
Silux Mobile is a SIM only provider serving Kingston upon Thames and all of Greater London. Every SIM runs on Three's 5G/4G network with no contract, no credit check and free Royal Mail Tracked 48 delivery.
Why Kingston upon Thames Chooses Silux Mobile
Delivered to Kingston upon Thames
Free Royal Mail Tracked 48 delivery (2–3 working days) anywhere in the UK including Kingston upon Thames and Greater London.
Three 5G in Kingston upon Thames
Our SIMs use Three's 5G/4G network with strong coverage across Kingston upon Thames and surrounding areas.
From £5/Month
Cheaper than Lebara, Giffgaff and SMARTY — with 5G and Go Roam included at no extra cost.
Flexible Plans
SIM cards from 30-day rolling plans, and mobile broadband from 3-month contracts.
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
SIM Only Plans — Delivered to Kingston upon Thames
On Three 5G. No contracts.
Calls + Data
Unlimited calls
£8/mo
- 30GB data
- Unlimited calls & texts
- 4G/5G
- No contract
Unlimited
Unlimited
£18/mo
- Unlimited data
- Unlimited calls & texts
- 5G
- Go Roam 71+ countries
Three 5G Coverage in Kingston upon Thames
Three's 5G/4G network covers Kingston upon Thames and Greater London with strong indoor and outdoor signal — over 99% UK population coverage.
Check Your Kingston upon Thames PostcodeSIM Only in Kingston upon Thames — FAQs
What happens if I go over the fair usage policy in Kingston upon Thames?
It depends on the network. As of August 2026, Three is more flexible and lenient with its fair usage policy, and it is rare that we need to warn customers. Vodafone and O2 are much stricter: if you go over more than twice, you will be notified to monitor your usage.
What is the cheapest SIM in Kingston upon Thames?
Silux Mobile offers some of the cheapest SIMs available in Kingston upon Thames — from £5/month on Three's 5G network, with no contract and free Royal Mail Tracked 48 delivery to Greater London.
Does Three have good coverage in Kingston upon Thames?
Yes. Three's 4G and 5G network covers Kingston upon Thames and the surrounding Greater London area with strong indoor and outdoor signal. Check your exact postcode at siluxmobile.co.uk/network-coverage.
Can I get a SIM delivered to Kingston upon Thames?
Yes. Silux Mobile delivers to all Kingston upon Thames addresses free by Royal Mail Tracked 48 (2–3 working days). Faster delivery can be chosen at checkout.
Will my price increase mid-contract?
No. Silux Mobile never raises your price mid-contract — no annual or inflation-linked rises. The price you sign up at in Kingston upon Thames is the price you keep.
Do you run a credit check in Kingston upon Thames?
No. There are no credit checks on our SIM contracts, so anyone in Kingston upon Thames can join regardless of credit history.
Are prices in Kingston upon Thames inclusive of VAT?
Yes. No hidden fees — every price shown to customers in Kingston upon Thames is the price you pay, incl. VAT. No setup fees and no price increases.