Which UK Provider Has eSIM? Every Network Reviewed

All four major UK mobile networks (EE, Vodafone, Three, and O2) fully support eSIM, along with a growing list of smaller virtual operators including Giffgaff, Sky Mobile, VOXI, iD Mobile, SMARTY, spusu, Talkmobile, Lyca Mobile, Lebara, Tesco Mobile, Honest Mobile, and ParentShield. The UK has reached a point where the majority of mobile providers offer eSIM on at least some of their plans, though the quality of the eSIM experience varies significantly between networks. Some providers offer seamless, instant activation that takes under five minutes, while others still require phone calls to customer service or in-store visits. This guide reviews every UK provider that currently supports eSIM, explains how to activate on each, and helps you decide which one best fits your needs based on coverage, pricing, activation experience, and plan flexibility.

The Big Four: Full eSIM Support Across the Board

The UK's four major network operators all support eSIM technology on their pay monthly, SIM-only, and (in most cases) pay-as-you-go plans. Since these networks own and operate the physical infrastructure that every UK mobile connection depends on, understanding their eSIM offerings is essential before looking at smaller providers that resell capacity on these same networks.

EE

EE operates the UK's largest 4G network and one of the most extensive 5G networks, covering more geographic area than any other UK operator. Their eSIM support is comprehensive but comes with some quirks worth knowing about.

How to get an eSIM from EE. New customers purchasing a phone on contract can request an eSIM at checkout. SIM-only customers may find that eSIM is not always offered during the online checkout process, which means you may need to order a physical SIM first and then convert it. Existing customers can switch to eSIM by calling 150 from their EE phone, using the EE app, or visiting an EE store. The conversion process typically completes within minutes.

Coverage and performance. EE consistently leads independent coverage tests across the UK, particularly in rural areas where other networks struggle. Their 4G network reaches approximately 99% of the UK population, and their 5G rollout covers major cities including London, Manchester, Birmingham, Edinburgh, Cardiff, and dozens of smaller urban areas. For users who prioritize signal reliability, especially outside city centres, EE's network is difficult to beat.

Pricing. EE is the most expensive of the big four networks. Their SIM-only plans start significantly higher than comparable offerings from Three or Vodafone, and many plans include speed caps (limiting downloads to 100 Mbps even on 5G) unless you pay for a premium tier. If you want EE's excellent coverage without EE's prices, consider spusu, an MVNO that operates on the EE network at much lower price points (covered below).

Roaming. EE includes roaming in 47 European destinations on most plans, with a fair usage policy that varies by plan. Outside Europe, roaming passes are available but tend to be expensive.

Vodafone

Vodafone was one of the early adopters of eSIM technology in the UK and offers a well-established activation process across multiple plan types.

How to get an eSIM from Vodafone. New customers can select eSIM during the checkout process for both pay-monthly and pay-as-you-go plans. Vodafone emails activation instructions with a QR code that you scan using your phone's camera. Existing customers can switch from physical SIM to eSIM by contacting Vodafone through their app, website chat, or calling customer service. Vodafone also supports eSIM activation in stores.

Coverage and performance. Vodafone's 4G coverage ranks closely behind EE, with strong performance across England and improving coverage in Scotland and Wales. Their 5G network is expanding in major cities, though it currently lags behind EE and Three in terms of geographic coverage. Vodafone's network is reliable for most urban and suburban users, though rural coverage gaps exist in parts of Scotland, Wales, and Northern England.

Pricing. Vodafone occupies the mid-range in UK mobile pricing. Their Xtra plans bundle entertainment subscriptions (like YouTube Premium or Spotify) with data, which adds value if you use those services. Standard SIM-only plans are competitive with O2 but generally more expensive than Three or budget MVNOs.

Roaming. Vodafone includes roaming in European destinations on most plans, with an 8-day roaming pass available for non-European travel at reasonable prices. Their Global Roaming Plus add-on covers 83 destinations.

Three

Three has carved out a reputation for offering the fastest average 5G speeds in the UK, aggressive pricing, and generous data allowances. Their eSIM support covers all SIM-only and pay-monthly plans.

How to get an eSIM from Three. New customers can request an eSIM at checkout when ordering any SIM-only or pay-monthly plan. The option is clearly presented alongside the physical SIM choice. Existing customers can switch by contacting Three's customer service. The process is straightforward and usually completes within 24 hours, though many users report faster activation.

Coverage and performance. Three operates the UK's fastest 5G network based on average download speeds, which is a significant advantage for users in 5G-covered areas. Their 4G coverage, however, is the weakest of the big four, particularly in rural Scotland, Wales, and parts of Northern England. Indoor coverage can also be patchy in some areas because Three relies more heavily on higher-frequency spectrum that penetrates buildings less effectively. If you live and work primarily in urban areas, Three is an excellent choice. If you frequently travel to rural areas, check their coverage map carefully before committing.

Pricing. Three is consistently the cheapest of the four major networks, often offering unlimited data plans at prices that competitors charge for 50GB or 100GB. This makes them the value leader among the big four, and their eSIM support means you do not have to sacrifice convenience for savings.

Roaming. Three's Go Roam service includes roaming in 71 destinations, but with a 12GB monthly fair usage limit on data regardless of your UK plan's allowance. This limit is lower than what EE and Vodafone offer, making Three less ideal for heavy data users who travel frequently within Europe.

O2

O2 rounds out the big four with solid nationwide coverage and a strong brand presence, particularly among contract customers who value their Priority rewards program.

How to get an eSIM from O2. O2's eSIM process for pay-monthly customers is available through the My O2 app or by contacting customer service. Pay-as-you-go eSIM requires an in-store visit, which is less convenient than the online processes offered by Three and Vodafone for PAYG. This in-store requirement is a notable limitation for travellers or users who prefer fully digital activation.

Coverage and performance. O2's 4G coverage is comparable to Vodafone's, with strong performance across urban and suburban areas and some gaps in deeply rural locations. Their 5G rollout is ongoing in major cities. O2 shares network infrastructure with Vodafone through their joint venture (CTIL), which means real-world coverage differences between the two networks are narrowing.

Pricing. O2's plans are competitively priced within the mid-range. Their Airtime Plans separate device costs from service charges, which can make upgrading phones more flexible. O2 Priority rewards (early access to concert tickets, restaurant deals, and partner offers) add additional value that is difficult to quantify but genuinely appreciated by many customers.

Roaming. O2 includes roaming in 47 European destinations (called O2 Travel) with data, calls, and texts included at no extra cost, subject to a fair usage limit. Non-European roaming is available through travel add-ons.

MVNOs With eSIM: Cheaper Alternatives on the Same Networks

Mobile Virtual Network Operators (MVNOs) do not own network infrastructure but instead lease capacity from the big four. This business model allows them to offer significantly lower prices while providing identical coverage to the host network. Several UK MVNOs now support eSIM.

Giffgaff (O2 Network)

Giffgaff operates on the O2 network and is one of the UK's most popular budget providers. They launched eSIM support relatively recently and offer it across all their plans, including their flexible monthly "goodybag" bundles that can be changed or cancelled every 30 days with no contract commitment.

Activation process. Download the Giffgaff app, select the eSIM option on the dashboard, and choose your plan. Existing customers can switch from physical SIM to eSIM through the app under Account, then SIM, then Replace my SIM, then Switch to a new eSIM. The process is smooth and completes quickly.

Best for. Budget-conscious users who want O2 coverage with maximum flexibility. Giffgaff's 30-day rolling plans with no contract are particularly appealing for people who do not want to be locked into a 12 or 24 month agreement. Pricing is consistently among the lowest in the UK market.

VOXI (Vodafone Network)

VOXI, Vodafone's youth-oriented sub-brand, offers eSIM on all plans. Their standout feature is "endless social media," meaning social apps like Instagram, TikTok, Snapchat, Facebook, and WhatsApp do not count toward your data allowance. Plans are 30-day rolling with no credit check required.

Best for. Users under 30 (though anyone can join) who consume large amounts of social media content and want Vodafone's network quality at lower prices.

spusu (EE Network)

Spusu is an Austrian MVNO that entered the UK market and operates on the EE network. All their SIM-only plans support eSIM, and the activation process is notably smooth: order your plan, receive a QR code via email within minutes, scan it, and connect.

Best for. Users who want EE's superior rural and 4G coverage without paying EE's premium prices. Spusu's plans are simple and affordable, making them an excellent choice for anyone in areas where EE provides the strongest signal. Their customer service is UK-based and responsive.

iD Mobile (Three Network)

iD Mobile runs on Three's network and offers eSIM on both pay-monthly and pay-as-you-go plans. You can select eSIM during checkout, and activation via QR code is straightforward.

Best for. Budget users who want Three's network (including their fast 5G) at competitive prices with data rollover, meaning unused data from one month carries over to the next.

SMARTY (Three Network)

SMARTY, Three's own budget sub-brand, added eSIM support in late 2025. Currently, you must join on a physical SIM first and then convert to eSIM through your online dashboard. Direct eSIM ordering for new customers is expected but was not available at the time of writing.

Best for. Users who want the absolute lowest prices on Three's network. SMARTY is among the cheapest providers in the UK, and their plans are 30-day rolling with no contract. The eSIM activation process requires an extra step compared to competitors, but the savings can be significant.

Talkmobile (Vodafone Network)

Talkmobile added eSIM support in September 2025. New customers can select eSIM at checkout with any SIM-only deal. The process is functional but not the smoothest: QR codes can take up to 15 minutes to arrive via email, and APN settings may need manual configuration for data connectivity.

Best for. Users who want Vodafone coverage at lower prices and do not mind a slightly less polished activation experience.

Sky Mobile (O2 Network)

Sky Mobile operates on the O2 network and offers eSIM support on their plans. Sky's unique "Roll" feature allows unused data to be stored in a Data Piggybank for up to three years, giving you a growing reserve of backup data.

Best for. Existing Sky TV and broadband customers who can benefit from multiproduct discounts. The Data Piggybank feature appeals to users whose data consumption varies significantly month to month.

Lyca Mobile (Multiple Networks)

Lyca Mobile supports eSIM on all plans, including their extremely affordable pay-as-you-go bundles. Their cheapest PAYG option starts at just £2.50, which includes 5GB of data plus 1,000 minutes and texts, making it one of the most affordable eSIM options in the UK market.

Best for. Users who need an extremely cheap UK number with generous allowances, and international callers, as Lyca Mobile specializes in low-cost calls to overseas destinations.

Lebara (Vodafone Network)

Lebara launched eSIM in October 2025 with initial support limited to new customers using the iPhone Air. The network has indicated plans to expand eSIM availability to existing customers and a wider range of devices. As of early 2026, eSIM availability may still be limited depending on your device.

Best for. International calling enthusiasts, as Lebara includes free calls to dozens of countries in many of their plans. Check current eSIM device compatibility before purchasing.

Honest Mobile (Coverage Varies)

Honest Mobile, a smaller ethical provider, supports eSIM and donates a portion of revenue to environmental causes. Their plans are competitive and include eSIM activation.

Best for. Environmentally conscious users who want their mobile spend to support sustainability initiatives.

UK Providers That Do Not Yet Support eSIM

A few UK providers still lack eSIM support. ASDA Mobile (Vodafone network), and some smaller regional MVNOs have not yet implemented the technology. If you are currently with a provider that does not offer eSIM, switching is straightforward: text PAC to 65075 from your current SIM, receive your porting code within one minute, provide it to your new eSIM-supporting provider, and your number transfers within one business day.

How to Choose the Right UK eSIM Provider

With so many options, selecting the right provider comes down to four key factors.

Coverage at your specific location matters most. Use the Ofcom coverage checker to see which networks provide the strongest signal at your home, workplace, and regular travel routes. The best deal in the world is worthless if the network does not reach your location. EE generally leads in rural and 4G coverage. Three leads in urban 5G speeds. Vodafone and O2 fall between the two.

Price versus network quality is the core trade-off. If you want the cheapest possible plan, MVNOs like SMARTY, Giffgaff, and Lyca Mobile offer remarkable value. If you want the strongest coverage and are willing to pay more, EE (or spusu on EE's network for better value) is the premium choice. Three offers the best balance of price and performance for urban users.

Activation experience varies significantly. Some providers (spusu, Giffgaff, Three) offer excellent eSIM activation that completes in under five minutes. Others (O2 PAYG, Lebara) have limitations that require store visits or specific device models. If a seamless digital-first activation is important to you, prioritize providers known for smooth eSIM processes.

Roaming needs should influence your decision. If you travel frequently within Europe, check each provider's roaming fair usage limits. Three's 12GB cap may be restrictive for heavy users, while EE and Vodafone offer more generous allowances. For travel outside the UK and Europe, consider supplementing your UK eSIM with a travel data eSIM from providers listed on eSIM Card List, which can save substantially compared to carrier roaming charges.

UK eSIM Providers: Quick Comparison Table

Setting Up Your UK eSIM: Step-by-Step

Regardless of which provider you choose, the eSIM activation process follows a similar pattern on all devices.

On iPhone. Go to Settings, then Cellular (or Mobile Service), then Add eSIM (or Add Cellular Plan on older iOS versions). Choose "Use QR Code" and scan the code provided by your carrier. If your carrier supports eSIM Carrier Activation, the profile may download automatically without scanning. Name your new plan (for example, "EE Personal" or "Three Work") to distinguish it from any other lines. Choose your default line preferences for voice, SMS, and data.

On Samsung. Go to Settings, then Connections, then SIM Manager, then Add eSIM. Select "Scan QR code from service provider" and scan the code. Samsung's One UI interface allows you to name each SIM and configure default preferences for calls, messages, and mobile data independently.

On Google Pixel. Go to Settings, then Network and Internet, then SIMs, then Add SIM (or the "+" icon). Choose "Download a SIM instead" and scan the QR code. Follow the remaining prompts to complete activation and configure your line preferences.

After activation, your eSIM connects to the carrier's network within minutes. If data does not work immediately, try restarting your phone. If the issue persists, check that APN settings are correctly configured (your carrier's support page will list the correct values) and ensure that data roaming is turned on for eSIM lines that require it.

Conclusion

The UK eSIM market has matured to the point where nearly every significant mobile provider offers eSIM support in some form. All four major networks (EE, Vodafone, Three, O2) and the majority of popular MVNOs now allow you to activate service on an embedded SIM, though the smoothness of the experience varies between providers. For the best combination of coverage and value, consider spusu (EE network, budget pricing), Giffgaff (O2 network, maximum flexibility), or Three directly (fastest 5G, cheapest big four). Whichever provider you choose, the days of hunting for a SIM ejector pin and fumbling with tiny plastic cards are ending. The UK is firmly in the eSIM era, and the technology only becomes more capable with each passing year.