10 Best Sim Card in The UK

Last updated on 29/06/2025

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Best Choice

9.8

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
Allowances last up to 30 days from activation
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

O2 Pay As You Go Sim Card, blue

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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

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

MODEL IS Vodafone MW40

Vodafone Pay As You Go Sim Card

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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

MODEL IS Vodafone MW40

Vodafone VOXI SIM Card with Endless Social Media, Calls, Texts and Roaming

67% OffFree Shipping

Why We Love It

Unlimited social media usage.
Endless calls and texts.
Flexible plans for all needs.

Main Highlights

Endless social media, VOXI is the mobile network that gives you unlimited use of social apps without eating your data
Endless chat, all VOXI plans also come with endless calls, texts and picture messaging
Endless flexibility, Vodafone flexible monthly plans keep you in control; change, pause or cancel your plan anytime
Endless roaming, use your plan with no extra cost in 48 countries in Europe, including your endless social data
VOXI is powered by Vodafone's superfast 4G network for reliable speed and signal, at home or abroad

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

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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.

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

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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 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)

MODEL IS Vodafone MW40

Vodafone SIM Card UK PAYG £10 Bundle -7GB + Unlimited Calls & Texts 30 day bundle

55% Off

Why We Love It

Great value for money.
Total Rollover for data.
European roaming included.

Main Highlights

Want to stream, share and browse every day? Get more minutes, texts and 4G data for less with a Vodafone Big Value Bundle. Your sim comes pre-loaded so you can start using it straight away
Total Rollover - If you've got unused data, minutes and texts at the end of your bundle, they'll roll over if you renew - so you get to use them for another 30 days
Roam all over Europe - In Vodafone's Pay as you go Europe Zone, you can use your bundle as freely as you would at home - in 51 destinations
VeryMe Rewards membership - you'll get weekly discounts and giveaways that change over time depending on your interests. To join, you just need to top up a minimum of £10 every 6 weeks
My Vodafone app - Keep tabs on your bundle usage and manage your rewards. Plus, it's quick and easy to download

SIM CARD, 3 IN 1 SIM, PAYG, EE

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Main Highlights

EE 300011736 Pay As You Go 3-in-1 SIM card.

8.7

Excellent

We scanned 1194 products

We reviewed these offers relevant to the Sim Card 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, O2, love 2 surf, MODEL IS Vodafone MW40, Giffgaff, Best Price Square, 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 Card 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 O2 Pay As You Go Sim Card, blue by O2 based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Sim Card and the best cost-to-value ratio is Vodafone VOXI SIM Card with Endless Social Media, Calls, Texts and Roamingat MODEL IS Vodafone MW40 with a 67% discount.
Our list of the best Sim Card 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.

10 Best Sim Card in The UK

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We scanned 1194 products

We concluded that: