Data SIM Cards in Kingston upon Thames
Data-only SIM cards in Kingston upon Thames from £4/month on Three's 5G network. Ideal for tablets, dongles, MiFi and routers.
Silux Mobile delivers data SIMs to Kingston upon Thames and all of Greater London free by Royal Mail Tracked 48. Pure data, no calls or texts to pay for — on Three's 5G/4G network with no contract.
Why Kingston upon Thames Chooses Silux Data SIMs
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
Data SIM Plans — Delivered to Kingston upon Thames
Data-only SIMs on Three 5G. No contracts.
Data Plus
30GB
£6/mo
- 30GB data
- Tablet & dongle ready
- 4G/5G
- No contract
Unlimited Data
Unlimited
£16/mo
- Unlimited data
- 5G speeds
- No throttling
- No contract
Three 5G Data Coverage in Kingston upon Thames
Three's 5G/4G network covers Kingston upon Thames and Greater London with strong signal for tablets, dongles and mobile routers. Over 99% UK population coverage.
Check Your Kingston upon Thames PostcodeData SIM Cards 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 data SIM in Kingston upon Thames?
Silux Mobile offers some of the cheapest data 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 data 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.