10 Best Sim Card in The UK

Last updated on 02/08/2025
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Best Choice
1
9.8
Exceptional
EE PAYG £10 Data Sim Includes £10 pre-paid credit, 8GB Data, 500 Minutes and Unlimited Texts (EE £10-20GB)
EE
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
9.8
Exceptional
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Best Value
2
9.6
Superb
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
Lebara
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.
9.6
Superb
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3
9.4
Superb
vodafone pay as you go sim card UK - with £5 credit
talk all day
vodafone pay as you go sim card UK - with £5 credit
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Why We Love It
  • Easy to claim credit.
  • Perfect for backup devices.
  • Affordable pay-as-you-go option.
Main Highlights
  • UK vodafone Pay as you go sim card
  • £5 credit - simple claim process
  • great for back up devices
9.4
Superb
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4
9.3
Superb
Save 32%
Vodafone Pay As You Go Sim Card
Vodafone
Vodafone Pay As You Go Sim Card
32% 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
9.3
Superb
Save 32%
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5
9.1
Superb
O2 Pay As You Go Sim Card, blue
O2
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
9.1
Superb
Amazon Logo
6
9.0
Superb
EE Pay As You Go 3-in-1 SIM card
EE
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
9.0
Superb
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7
8.9
Excellent
New Sim card Young Mobile Retail Pack - Latest offer £12, unlimited text and calls
Generic
New Sim card Young Mobile Retail Pack - Latest offer £12, unlimited text and calls
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Main Highlights
  • Endless chat, all plans also come with endless calls, texts and picture messaging
8.9
Excellent
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8
8.8
Excellent
SMARTY Unlimited SIM Only 1-month flexible plan
SMARTY
SMARTY Unlimited SIM Only 1-month flexible plan
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Why We Love It
  • Flexible plans, cancel anytime.
  • EU roaming included with plan.
  • No speed caps or restrictions.
Main Highlights
  • Unlimited data, calls and texts SIM for just £18 a month.
  • You’re free to leave at the end of the month: Commitment-free with no long contract.
  • No annual price rises: You won’t be shocked with a higher bill at the end of the month.
  • EU roaming up to 12GB included: Enjoy your EU travels without being hit with extra charges.
  • Switch effortlessly: Keep your existing number, no need to remember a new one.
8.8
Excellent
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9
8.7
Excellent
giffgaff Nano/Micro/Standard SIM – lowcost 4G/5G monthly bundles, perfect for phones or travel WiFi devices
Giffgaff
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.
8.7
Excellent
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10
8.7
Excellent
Vodafone VOXI SIM Card with Endless Social Media, Calls, Texts and Roaming
Vodafone
Vodafone VOXI SIM Card with Endless Social Media, Calls, Texts and Roaming
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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
8.7
Excellent
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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, Lebara, talk all day, Vodafone, O2, Generic, SMARTY, 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 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: