Best Sim Cards of 2025

Last updated on 17/09/2025

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Best Choice

9.9

Exceptional

EE PAYG £10 Data Sim Includes £10 pre-paid credit, 8GB Data, 500 Minutes and Unlimited Texts (EE £10-20GB)

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Why we love it

Generous data and call allowances.
Attractive bonus on multiple purchases.
Fast 4G cellular technology.

Main Highlights

20GB Data included, lasts up to 30 days
The packaging you receive may differ from the image displayed but the data you receive will be as detailed above
Roaming is not included
Free Boost - Buy 2 packs and get 2GB free
500 minutes and unlimited texts
If the purchased pre-paid credit is not immediately available when the sim is put into the device, please message us and include the mobile number as detailed on the back of the packaging.
To view EE’s pay as you go pre-service information, visit ee.co.uk/paygservice. Please read before placing your order. You can download or save the document from your browser

EE Pay As You Go SIM Card UK PREPAID PAYG £10 Bundle 8GB + (12GB FREE DATA every month for 6 months with regular top ups (Promotion request deadline of 07.10.2025)

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Why we love it

Free 12GB data promo.
Trio SIM fits any device.
4G speeds and WiFi calling.

Main Highlights

Quick & Easy Sim Activation - FREE 12GB PROMO activate by 07 OCT 2025 – total 20GB
The sim pack you receive will state 8GB on the printed packaging. This will be upgraded to 20GB ‘Extra Data’ promotional offer after activation on our website
Bundle lasts 30 days from activation -BUNDLE DOES NOT INCLUDE EUROPEAN ROAMING. Trio SIM fits any unlocked 4G and above phone or devices locked to EE network. Personal hotspot/tethering allowed
4G speeds up to 25Mbps (No 5G with PAYG). WIFI CALLING + WIFI COVERAGE ON LONDON UNDERGROUND + 150,000 LOCATIONS ACROSS UK
To view EE’s pay as you go pre-service information, visit ee.co.uk/paygservice. Please read before placing your order. You can download or save the document from your browser

Lebara SIM Card, Unlimted Data SIM for £12.50, Half Price for First 3 Months, No Contract, UK Calls, UK Texts and International Calls Included, Multi-size, Fits All Devices

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Why we love it

Huge savings for three months.
Convenient pre-loaded plan available.
Flexibility to change anytime.

Main Highlights

Register to activate your promotion.
Plan is Pre-loaded and ready to use.
30-day rolling plan. No contract. Change or cancel anytime.
Keep your existing number.
EU and India roaming included.

Lebara SIM Card: 25GB for £5, Half Price for First 3 Months, No Contract, UK Calls, UK Texts and International Calls Included, Multi-size, Fits All Devices

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Why we love it

50% Off for three months.
Pre-loaded plan for convenience.
No contract, change anytime easily.

Main Highlights

Register to activate your promotion.
Plan is Pre-loaded and ready to use.
30-day rolling plan. No contract. Change or cancel anytime.
Keep your existing number.
Roam like home in the EU and India.

Lebara SIM Card, 5GB for £2.50, Half Price for First 3 Months, No Contract, UK Calls, UK Texts and International Calls Included, Multi-size, Fits All Devices

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Why we love it

Great savings for three months.
Flexible plan with no contract.
Includes free roaming in multiple regions.

Main Highlights

Plan is Pre-loaded and ready to use.
30-day rolling plan. No contract. Change or cancel anytime.
Keep your existing number.
EU and India roaming included.
100 International Minutes (from the UK) to over 50 countries.

Vodafone Pay As You Go Sim Card

78% Off

Why we love it

Makes switching to Vodafone easy.
Revives old phones effortlessly.
Perfect for UK visits.

Main Highlights

Suitable if your switching to the Vodafone network
Reactivate an old phone with this Sim Card
Visit the UK with your handset
Connect your existing phone to a wide range of Vodafone products and services
New SIM with mobile phone number

O2 Pay As You Go Sim Card, blue

12% OffFree Shipping

Why we love it

Flexibility with no binding contract.
Savings with zero monthly bills.
Reasonable call and text charges.

Main Highlights

No Contract To Sign
No Monthly Bills
Pay As You Go
Official Dealer Pack
Great Call & Text Charges

giffgaff O2 4G Multi Sim Card For PAYG - UNLIMITED CALLS, TEXTS & DATA - get £5 BONUS CALL CREDIT with your first Top up! Fits ALL devices eg. iPhone 5S/6/6S/7 Plus/8 Plus/SE/X/, GALAXY S7/S7 Edge/S8

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Why we love it

Flexible monthly bundles available.
Various SIM sizes included.
Affordable top-up options offered.

Main Highlights

3 in 1 Sim (Nano, Micro, Standard)
Enjoy our rolling monthly bundles from just £6 or pay as you go
Free Credit not always available and depends on Giff Gaff Promotions
Select the best tariff option for you on activation
Top-up required upon activation (Not included)

EE Pay As You Go 3-in-1 SIM card

44% Off

Why we love it

Versatile with three SIM sizes.
Generous data and call allowance.
Freedom from binding contracts.

Main Highlights

Add £10 credit and receive 8GB Data 500 minutes and unlimited texts lasts up to 30 days
The packaging you receive may have the 'hat' missing or differ from the image displayed but the data you receive will be as detailed above
To view EE’s pay as you go pre-service information, visit ee.co.uk/paygservice. Please read before placing your order. You can download or save the document from your browser

giffgaff Nano/Micro/Standard SIM – lowcost 4G/5G monthly bundles, perfect for phones or travel WiFi devices

71% OffFree Shipping

Why we love it

Fits all phone sizes.
Free calls and texts.
Monthly bundles from £6.

Main Highlights

PLEASE NOTE THAT THE PACKAGING MIGHT VARY! GIFFGAFF CHANGE THEIR PACKAGING DESIGN VERY OFTEN BUT THE SIM CARDS INSIDE ARE ALWAYS THE SAME.
Triple SIM fits all phones (nano, micro and standard sizes).
Latest Sim pack sent just register and top-up to use. Enjoy free calls & texts to your mates on giffgaff.
Monthly bundles from just £6 or pay as you go. 4G data as standard. £5 Bonus Credit When You Topup £10 First Time.

8.7

Excellent

Save 71%

We scanned 1194 products

We reviewed these offers relevant to the Sim Cards within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like EE, love 2 surf, Lebara, Vodafone, O2, Giffgaff, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Sim Cards in the market, we considered we took a deep dive into 5971 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is EE PAYG £10 Data Sim Includes £10 pre-paid credit, 8GB Data, 500 Minutes and Unlimited Texts (EE £10-20GB). We love many things about this product by EE. What sets it apart from the competition is Generous data and call allowances. , Attractive bonus on multiple purchases. , Fast 4G cellular technology.
The best value product for most shoppers and where user satisfaction is continuously the highest is EE Pay As You Go SIM Card UK PREPAID PAYG £10 Bundle 8GB + (12GB FREE DATA every month for 6 months with regular top ups (Promotion request deadline of 07.10.2025) by love 2 surf based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Sim Cards and the best cost-to-value ratio is Vodafone Pay As You Go Sim Cardat Vodafone with a 78% discount.
Our list of the best Sim Cards is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

Best Sim Cards of 2025

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We scanned 1194 products

We concluded that: