Are budget SIM networks as good as EE or Three?

Yes — 1pMobile, Ecotalk and Mozillion all run on EE's network. Chattr runs on Three. Identical coverage, identical signal, at a fraction of the major network price.

Can I keep my existing phone number when switching?

Yes. Text PAC to 65075 to receive a free porting code. Your number transfers within one working day. The process is free and your old contract cancels automatically.

Which SIM plan is best for most UK users?

Mozillion 25GB at £8/month on EE is the best value for most UK users — 25GB data, EU roaming included, 5G, 30-day rolling, no credit check.

◈ SIM only deals

Compare SIM only deals

30-day rolling plans from UK independent networks — same masts as EE and Three, lower prices.

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All monthly plans include unlimited calls and texts. Prices correct at time of publication. GadgetRank earns commission on purchases at no extra cost to you.

Which network should I choose?

1pMobile

Best for very light use. Pay as you go from 1p/min on EE. Lowest entry price in the market.

Chattr

Only no-credit-check option. Runs on Three. Good for those building credit history.

Ecotalk

All profits fund UK nature restoration. Price-rise guarantee. Runs on EE.

Mozillion

EU roaming on all plans. Best for frequent travellers. Uncapped 5G on EE.

🌿 Rewild

100% of profits to rewilding nature. Runs on both Vodafone and Three — 99% UK coverage. eSIM only. From £11.25/month.

Frequently asked questions

What is a SIM only deal?

A SIM only deal gives you calls, texts and data without paying for a handset. We compare 30-day rolling plans you can cancel any time alongside 12 and 24-month plans, which are usually cheaper per month. Use the contract length filter to show only the terms you want.

Are budget networks as good as EE or Three?

Yes — 1pMobile, Ecotalk and Mozillion all run on EE. Chattr runs on Three. Identical coverage at a fraction of the price.

Can I keep my existing phone number?

Yes. Text PAC to 65075 and your provider must send the code within 60 seconds. Give it to your new provider and your number transfers in one working day — so a code handed over after 5pm on a Friday completes on Monday.

I just bought a refurbished phone — which SIM?

Refurbished phones are SIM-free and unlocked. Mozillion's 25GB for £8/month on EE is excellent value for most users.