Mozillion Pay Monthly Plus 10GB 24 months (£62.50 upfront + £2.50/mo)
10GBof 5G data
10 GBof 5G data
£2.50a month
£62.50 upfrontEffective £5.10/mo- NEW
Buy nowat Mozillion
at MozillionDeal details
Best eSIM Deals UK
Compare eSIM deals from every major UK network: activate instantly, no physical SIM, no waiting for the post.
List of SIM-only deals (227)
227 deals · from 6 retailers · Updated 7h ago
24 month contract
£122.50 total cost
Mozillion Pay Monthly Plus 30GB 24 months (£68.75 upfront + £2.75/mo)
30GBof 5G data
30 GBof 5G data
£2.75a month
£68.75 upfrontEffective £5.61/mo- NEW
Buy nowat Mozillion
at MozillionDeal details
Mozillion 1GB SIM Only, 12-month
1GBof 5G data
1 GBof 5G data
£2.75a month
£33.00 upfrontEffective £5.50/mo- NEW
Buy nowat Mozillion
at MozillionDeal details
Mozillion 80GB SIM Only, 24-month
80GBof 5G data
80 GBof 5G data
£3.00a month
£75.00 upfrontEffective £6.13/mo- NEW
Buy nowat Mozillion
at MozillionDeal details
Mozillion Pay Monthly Plus 100GB 24 months (£81.25 upfront + £3.25/mo)
100GBof 5G data
100 GBof 5G data
£3.25a month
£81.25 upfrontEffective £6.64/mo- NEW
Buy nowat Mozillion
at MozillionDeal details
Mozillion 3GB SIM Only, 24-month
3GBof 5G data
3 GBof 5G data
£3.50a month
£84.00 upfrontEffective £7.00/mo- NEW
Buy nowat Mozillion
at MozillionDeal details
Mozillion 210GB SIM Only, 24-month
210GBof 5G data
210 GBof 5G data
£3.50a month
£87.50 upfrontEffective £7.15/mo- NEW
Buy nowat Mozillion
at MozillionDeal details
Mozillion 3GB SIM Only, 12-month
3GBof 5G data
3 GBof 5G data
£3.75a month
£45.00 upfrontEffective £7.50/mo- NEW
Buy nowat Mozillion
at MozillionDeal details
Mozillion 260GB SIM Only, 24-month
260GBof 5G data
260 GBof 5G data
£3.75a month
£93.75 upfrontEffective £7.66/mo- NEW
Buy nowat Mozillion
at MozillionDeal details
Mozillion Pay Monthly Plus 310GB 24 months (£100 upfront + £4/mo)
310GBof 5G data
310 GBof 5G data
£4.00a month
£100.00 upfrontEffective £8.17/mo- NEW
Buy nowat Mozillion
at MozillionDeal details
Mozillion 30GB PAYG 24 months (£4/mo)
30GBof 5G data
30 GBof 5G data
£4.00a month
£96.00 upfrontEffective £8.00/moBuy nowat Mozillion
at MozillionDeal details
Mozillion 3GB SIM, £4.50/mo, 1-month rolling
3GBof 5G data
3 GBof 5G data
£4.50a month
£4.50 upfront- 1-month rolling
- NEW
Buy nowat Mozillion
at MozillionDeal details
Lebara 5GB SIM, £4.50/mo, 12 months
5GBof 5G data
5 GBof 5G data
£4.50a month
No mid-contract price rise£4.50 upfrontEffective £4.88/mo- NEW
Buy nowat Lebara
at LebaraDeal details
Lebara 5GB SIM, £5/mo, 1-month rolling
5GBof 5G data
5 GBof 5G data
£5.00a month
No mid-contract price rise£5.00 upfront- 1-month rolling
- NEW
Buy nowat Lebara
at LebaraDeal details
Mozillion 100GB PAYG 24 months (£5/mo)
100GBof 5G data
100 GBof 5G data
£5.00a month
£120.00 upfrontEffective £10.00/moBuy nowat Mozillion
at MozillionDeal details
Mozillion 10GB SIM, £5.90/mo, 1-month rolling
10GBof 5G data
10 GBof 5G data
£5.90a month
£5.90 upfront- 1-month rolling
- NEW
Buy nowat Mozillion
at MozillionDeal details
giffgaff SIM Only on golden goodybag with Unlimited mins & texts…
2GBof 5G data
2 GBof 5G data
£6.00a month
No mid-contract price rise£0.00 upfront- No upfront cost
- No contract
Buy nowat giffgaff
at giffgaffDeal details
giffgaff SIM Only on goodybag 1GB with Unlimited mins & texts…
1GBof 5G data
1 GBof 5G data
£6.00a month
No mid-contract price rise£0.00 upfront- No upfront cost
- No contract
Buy nowat giffgaff
at giffgaffDeal details
Mozillion 10GB SIM, £6/mo, 24 months
10GBof 5G data
10 GBof 5G data
£6.00a month
£144.00 upfrontEffective £12.00/mo- NEW
Buy nowat Mozillion
at MozillionDeal details
iD Mobile SIM Only on 5G 25GB (1 Month contract) with Unlimited mins…
25GBof 5G data
25 GBof 5G data
£6.00a month
£0.00 upfront- No upfront cost
- 5G
- 1-month rolling
Buy nowat iD Mobile
at iD MobileDeal details
Smarty 18GB SIM, £6/mo with affiliate voucher, 1-month rolling
18GBof 5G data
18 GBof 5G data
£6.00a month
£6.00 upfront- 1-month rolling
- NEW
Buy nowat Smarty
at SmartyDeal details
iD Mobile SIM Only on 5G 12GB (12 Month contract) with Unlimited mins…
12GBof 5G data
12 GBof 5G data
£6.00a month
£0.00 upfront- No upfront cost
- 5G
Buy nowat iD Mobile
at iD MobileDeal details
iD Mobile SIM Only on 5G 15GB (24 Month contract) with Unlimited mins…
15GBof 5G data
15 GBof 5G data
£6.00a month
£0.00 upfront- No upfront cost
- 5G
Buy nowat iD Mobile
at iD MobileDeal details
iD Mobile SIM Only on 5G 15GB (1 Month contract) with Unlimited mins…
15GBof 5G data
15 GBof 5G data
£6.00a month
£0.00 upfront- No upfront cost
- 5G
- 1-month rolling
Buy nowat iD Mobile
at iD MobileDeal details
Showing 24 of 227 deals
What Is an eSIM and How Does It Work?
An eSIM (embedded SIM) is a SIM card built directly into your phone. Unlike a standard nano SIM, it cannot be physically removed. Instead of inserting a card, you download your mobile plan digitally, usually by scanning a QR code from your network or following a setup guide in your phone settings.
Once activated, your eSIM works exactly like a normal SIM. You get calls, texts, and mobile data as normal. The key difference is speed and flexibility, you can switch networks, add a travel plan, or run two numbers on one phone without any physical swapping.
How to Activate an eSIM in 3 Steps:
- Choose your eSIM deal on Switch and confirm your plan
- Receive your QR code or activation details by email
- Open your phone Settings, go to Mobile/Cellular, select Add eSIM and scan the QR code
Setup takes under 5 minutes from start to finish on most devices.
Why Choose an eSIM Deal in the UK?
eSIMs offer several real advantages over traditional SIM cards, especially if you travel, switch networks regularly, or just want a quicker, cleaner mobile setup.
Which Phones Are eSIM Compatible in the UK?
Most smartphones released in the last four years support eSIM. Here are the main compatible devices:
- Apple iPhone: iPhone XS, XR (2018) and all models released after. iPhone 14 models bought in the US are eSIM only, no physical SIM tray. iPhone 15 and iPhone 16 series have full eSIM support with dual eSIM capability. iPhone SE (2020 and 2022) also supported.
- Samsung Galaxy: Galaxy S20, S21, S22, S23, S24, S25 series. Galaxy Z Fold and Z Flip foldables. Galaxy A54 and above (selected A-series models), check your specific model.
- Google Pixel: Pixel 3 and above. Pixel 7, 8, 9, and 10 series have full eSIM support.
If you are unsure whether your phone supports eSIM, go to Settings then About Phone on Android, or Settings then General then About on iPhone, and look for an EID number. If you see one, your phone has eSIM capability.
Which UK Networks Offer eSIM Deals?
All four major UK mobile networks now offer eSIM. Several smaller MVNOs do too. Network availability and plan details are subject to change; compare live on Switch for the most current pricing.
← Swipe to see all columns →
How to Find the Best eSIM Deals UK Networks Are Offering
Price is important, but it is not the only thing to look at when comparing eSIM plans. Here are the five things worth checking before you commit.
1
Monthly Data Allowance
Think about how much data you actually use. Ofcom reports the average UK mobile user consumes around 9.9GB per month. If you stream a lot or use your phone as a hotspot, an unlimited data eSIM plan gives you peace of mind. If you mainly use Wi-Fi, a 10 to 20GB deal could save you money every month.
2
Contract Length
Most eSIM plans come as 30-day rolling, 12-month, or 24-month contracts. Rolling plans are flexible, ideal if you like to switch regularly. Longer contracts usually offer a lower monthly price. With eSIM, switching is easier than ever, so a rolling plan is a popular choice.
3
5G Access
All major UK eSIM plans now include 5G access at no extra cost, as long as your phone supports it and you are in a covered area. Ofcom estimates 85 to 93% of UK premises can receive outdoor 5G from at least one network. Check coverage in your postcode before choosing.
4
Roaming
If you travel regularly, check whether your eSIM plan includes EU or international roaming. Since Brexit, several major networks have reintroduced roaming charges for Europe. Some plans, like Three's Go Roam and SMARTY's EU data inclusion, still offer roaming at no extra cost on selected plans.
5
Network Coverage
Every network uses the same physical infrastructure in your area differently. Check the Ofcom coverage checker with your postcode before switching. SMARTY and iD Mobile run on Three's network. giffgaff and Tesco Mobile run on O2. Lebara and spusu run on Vodafone and EE respectively.
eSIM vs Physical SIM: Which Is Right for You?
For most people with a phone bought in the last four years, eSIM is the more convenient option. For anyone who regularly swaps between multiple devices, a physical SIM still offers more flexibility.
← Swipe to see all columns →
Travel eSIM Deals: Stay Connected Abroad Without Roaming Fees
One of the most popular uses for eSIM is travel. Instead of paying daily roaming fees to your UK network, you can add a local data eSIM for your destination and keep your UK SIM active for calls and texts at the same time. You get the best of both, local data rates and your regular UK number.
How travel eSIMs work:
- Browse and buy a travel eSIM data plan for your destination before you leave the UK
- Receive the QR code by email and scan it in your phone settings
- When you land, your phone connects to the local network via the travel eSIM
- Your UK SIM stays active, you can still receive calls and texts on your normal number
- When you return, simply delete or deactivate the travel eSIM profile
Switch compares both UK eSIM deals and travel eSIM bundles so you can find the right option whether you are at home or heading abroad.
How to Switch to an eSIM Deal on Switch
Switching to an eSIM plan through Switch takes under 5 minutes from start to finish.
← Swipe to see all columns →
You do not need to contact your old network to cancel. If you want to keep your current phone number, text PAC to 65075 before you switch. Share the PAC code with your new network and your number transfers across automatically.
Can I Keep My Number When I Switch to an eSIM?
Yes. Keeping your number when switching to an eSIM is straightforward. The process is the same as any other network switch:
- Text PAC to 65075, you will receive your PAC code by text within minutes, free of charge
- Give the PAC code to your new network when setting up your eSIM plan
- Your number transfers across within 1 working day
- Your old contract cancels automatically once the number ports over
You do not lose your number at any point during the switch. Your old SIM continues working until the transfer is complete.
Compare eSIM Deals UK: Find Your Best Plan on Switch
Whether you want a flexible rolling monthly plan, a high-data 5G eSIM deal, or a travel eSIM for your next trip, Switch makes it simple to compare every option in one place. All major UK networks. All contract lengths. All data allowances. No hidden fees.
Switch is free to use, fully independent, and shows you plans ranked by what matters most to you, not by which network pays the highest commission.
Free AI deals helper
Meet Squid AI, your free deals agent
Say how much data you use and Squid AI picks the cheapest SIM that fits.
No sign-up · answers in seconds
- Save moneyKeep your phone and stop overpaying for data.
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- Cheapest SIMSearches live SIM-only prices on every network.
FAQs
What is an eSIM deal?
An eSIM deal is a mobile plan, with data, calls, and texts, that runs on an embedded SIM card built into your phone rather than a physical SIM card you insert. You activate it digitally by scanning a QR code. Everything else works the same as a normal mobile plan.
Which phones support eSIM in the UK?
Can I have two eSIMs at the same time?
Is it cheaper to use an eSIM?
Do I need to cancel my old contract to switch to an eSIM?
Can I use an eSIM on a prepayment basis?
What happens if I change phones, and do I lose my eSIM?
Are eSIMs secure?
Can I use an eSIM for data only?
How do I compare the best eSIM deals UK providers offer?
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