UK SIM-only and travel eSIM comparison

The best SIM for what you need.

Almost every UK network runs on one of the big three — EE, O2 and VodafoneThree — so the signal’s the same, the price and features aren’t. Tell us the data and features you want, and we’ll rank the deals that fit by price.

340 deals•26 providers•3 mobile networks
Compare SIM-only dealsTravel eSIMs
Networks we compare
1pMobileCMLinkEcotalkLycamobileMeaningful PlanetMozillionNOW MobileParentShieldSpusu UKUtility WarehouseYour Co-op MobileZoiko MobileSky MobilegiffgaffASDA MobileHonest MobileLebaraSMARTYSuperdrug MobileTalkmobileVOXIiD Mobile
Coverage

Which network each brand runs on

Every provider we list uses EE, Virgin Media O2 or VodafoneThree’s masts. Pick the coverage that works where you live, then the cheapest brand on it.

EE networkThe brands that run on it
1pMobile1pMobile
CMLinkCMLink
EEEE
EcotalkEcotalk
LycamobileLycamobile
Meaningful PlanetMeaningful Planet
MozillionMozillion
NOW MobileNOW Mobile
ParentShieldParentShield
Spusu UKSpusu UK
Talkhome MobileTalkhome Mobile
Utility WarehouseUtility Warehouse
Your Co-op MobileYour Co-op Mobile
Zoiko MobileZoiko Mobile
Virgin Media O2 networkThe brands that run on it
O2O2
Sky MobileSky Mobile
giffgaffgiffgaff
VodafoneThree networkThe brands that run on it
ASDA MobileASDA Mobile
Honest MobileHonest Mobile
LebaraLebara
SMARTYSMARTY
Superdrug MobileSuperdrug Mobile
TalkmobileTalkmobile
VOXIVOXI
VodafoneVodafone
iD MobileiD Mobile
Worth knowing

A couple of things to check before you buy

Coverage firstStart with signal, not priceEvery budget brand runs on EE, O2 or VodafoneThree’s masts, so coverage is identical — only the price changes. Check what works best where you live, then see the cheapest SIMs on those exact masts.Compare by coverage → The real priceThe price isn’t the priceNetworks quietly raise your bill each spring, so a ‘£10/mo’ deal can cost more than it says. We flag every deal that rises — and the ones that hold their price for the whole term.Deals that hold their price →
Travel

Travel eSIMs for abroad

Data in 200+ countries from every major eSIM provider, ranked by price per GB.

Compare travel eSIMs
Questions

Common questions

What’s the cheapest SIM-only deal right now?

Bigger allowances start around £5–6 a month, and unlimited data from about £12.50. The list at the top updates daily.

Do I need a contract?

No. Most deals we list are 30-day rolling or pay as you go, so you can leave whenever you like. Only the 12–24 month plans tie you in.

Rolling, pay monthly or pay as you go?

Pay monthly is a 12–24 month contract; rolling renews every 30 days; pay as you go you top up as you need. We label every deal.

What’s an eSIM?

A SIM built into your phone, with no plastic card. It’s the easiest way to get data abroad without swapping your UK SIM out.

Will a travel eSIM work where I’m going?

We cover 200+ countries plus regional plans. Search your destination to see every provider that covers it.

Can a SIM count for a bank-switch bonus?

Yes, if it’s billed by Direct Debit. Talkmobile and iD Mobile qualify; card-billed SIMs like Lebara don’t.

Compare SIM-only deals

Pick your coverage and the data you need, and we’ll show the cheapest deals that fit.

Compare deals