eSIM deals in the UK

How to choose the right UK eSIM deal

Start with the network, then the cost of enough data over the time you'll actually use it. Check 4G/5G reception at home and work with Ofcom's mobile coverage checker; its indoor and outdoor predictions can differ. Two providers using the same underlying network may still have different speeds, features and support.

Compare the real price, not just the first payment

A promotional monthly price can look like the best deal while costing more if you stay longer. Hypothetical example — these are not current offers from any provider:

Plan A starts £4 cheaper, yet costs £6 more over the full example. If you only need service briefly and can leave without a penalty, the initial offer might still suit you better. For real deals, count upfront payments, how long the discount lasts, later renewals, minimum commitment and any scheduled price changes. Compare the same dates: 12 renewals of 30 days do not cover exactly the same period as 12 calendar months.

UK SIM-only eSIM or travel eSIM?

The offers above are UK mobile plans delivered as eSIMs. They can include UK calls and texts as well as mobile data, subject to the chosen tariff. A separate travel eSIM is often data-focused, restricted to particular destinations or valid for a limited trip; it may not include a UK number or conventional calls and SMS.

An advertised EU roaming cap is a limit, not extra data added to your UK allowance. For example, a 10GB UK plan with a 30GB roaming ceiling does not automatically provide 30GB abroad; the amount you can actually use depends on your plan allowance and the provider's roaming rules. Check the destinations, charges, hotspot restrictions and any fair-use policy before travelling.

Visiting the UK rather than living here? Check whether the operator will sell and activate the UK plan for your circumstances, including any address, identity, payment or activation requirements. A short-stay, data-only travel eSIM may be simpler if you do not need a UK mobile number, calls or conventional texts. Do not assume you can activate a UK domestic plan from abroad.

Check your phone and the eSIM checkout before buying

Check your exact phone model and regional version against the manufacturer's specifications and the provider's eSIM instructions. If you are moving to a different provider, check that your phone is network-unlocked. On an iPhone, go to Settings → General → About → Network Provider Lock; Apple says 'No SIM restrictions' means it is unlocked. Apple explains how to check and unlock an iPhone. Device compatibility, customer eligibility and activation methods can still vary. For the basics, see our guide to what an eSIM is.

A recorded eSIM badge is not proof that every referral checkout will offer a digital SIM. After selecting View Deal, look for a clearly available eSIM option for the exact plan before paying. If the page offers only a physical SIM, do not order it assuming the provider will automatically convert it. Use the operator's confirmed eSIM purchase route or consider another qualifying deal. There is no guarantee of instant activation just because the tariff supports eSIM.

To move an existing UK number to a different mobile provider, text PAC to 65075 from the number you want to keep and give the code to your new provider. Do not cancel the old service first. If you have several numbers on one account, Ofcom advises contacting your provider or using its website for the switching code. Changing from a physical SIM to an eSIM within the same provider is instead normally a SIM swap: ask that provider to retain your existing number and account. See our number-switching guide or Ofcom's rules.

UK eSIM deals: common questions

Are eSIM deals cheaper or faster than physical SIM plans?

Not automatically. The SIM format alone does not improve coverage, speed or price. Compare the underlying network, the chosen tariff and the total amount you'll pay.

Does every deal on this page let me activate an eSIM immediately?

No guarantee. We include offers with recorded eSIM support, but the handset, customer eligibility and provider's actual ordering flow can differ. Confirm the eSIM option and activation instructions before purchasing.

Can I use a physical SIM and eSIM together?

Often, on a compatible dual-SIM phone. The number of active lines and the default line for mobile data depend on the exact device. Both services may incur charges. See Apple's dual-SIM guidance for supported iPhone configurations.

Can I keep my number when I switch to an eSIM?

Usually, yes. Use a PAC when moving your number to a different UK mobile provider, even if both providers use the same underlying network. If you are keeping the same provider and account, ask about a SIM swap instead. You do not need to buy another phone number just to change SIM format.

How DealPriceCheck compares eSIM deals

We display selected UK SIM-only offers, not the whole market. The catalogue uses recorded eSIM support, shows introductory and later prices where available, and keeps each offer's own verification date. We have not tested every operator checkout or every handset configuration, so confirm the final eSIM eligibility and terms before paying. Editorial review dates do not imply fresh verification of every tariff.

For network-specific setup, read how to get and activate a Lyca Mobile eSIM. To compare providers' eSIM availability, see which UK networks support eSIM. If you're not committed to digital SIM delivery, compare all UK SIM-only deals.