Best Sim Cards of 2025

Last updated on 29/12/2025
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1
EE PAYG SIM card preloaded with 120GB of Data

EE PAYG SIM card preloaded with 120GB of Data

EE
19% Off
Why we love it
  • Generous 120GB data included.
  • Valid for a year from activation.
  • No contracts, no commitments.
Main Highlights
  • 120GB of Data Included
  • Lasts up to 12 months from activation
  • No contract, no commitment. You can top-up to buy more data
  • The EE PAYG 120GB data SIM is compatible with the all unlocked devices or those that are locked to the EE network
  • SIM Card - Standard, Micro, and Nano SIM all-in-one with 120GB of data
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9.9
Exceptional
9.9
Exceptional
EE

EE PAYG SIM card preloaded with 120GB of Data

19% Off
Why we love it
  • Generous 120GB data included.
  • Valid for a year from activation.
  • No contracts, no commitments.
Main Highlights
  • 120GB of Data Included
  • Lasts up to 12 months from activation
  • No contract, no commitment. You can top-up to buy more data
  • The EE PAYG 120GB data SIM is compatible with the all unlocked devices or those that are locked to the EE network
  • SIM Card - Standard, Micro, and Nano SIM all-in-one with 120GB of data
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Value for Money
2
Wave Connect Quad Network Data Only SIM Card, Three, EE, O2, Vodafone, 4G LTE + 5G Prepaid, Activates On First Use, Includes UK, Ireland, EU, For Unlocked IoT Devices, Cameras (12GB | 12 Months)

Wave Connect Quad Network Data Only SIM Card, Three, EE, O2, Vodafone, 4G LTE + 5G Prepaid, Activates On First Use, Includes UK, Ireland, EU, For Unlocked IoT Devices, Cameras (12GB | 12 Months)

Wave Connect
14% Off
Why we love it
  • Versatile 3-in-1 SIM card.
  • Easy online data management.
  • Works with various devices.
Main Highlights
  • THE PLAN: Data only SIM card with 12GB valid for 12 months (not 12GB per month). Refill any time to reset the duration.
  • WHAT’S INCLUDED: A 3-in-1 SIM card with data to use across all major UK networks. The card includes standard/micro/nano sizes. This is data-only, no voice or text.
  • HOW IT WORKS: Insert to use straight away, register online to view data use and top-up.
  • WHY THIS SIM? Enjoy online access to view data consumption, add alerts and notifications when nearing your data allowance, and top-up manually or choose automatic top-ups with different data allowances available.
  • WHO’S THIS FOR? This non-steered SIM card connects to all networks so is great for trail cameras, CCTV, surveillance, security, movement cameras, solar energy monitoring systems and wind turbines - although it will work with most devices.
  • TOP-UP ANYTIME: A choice of options to add more data based on your use. Downgrade or upgrade at any time. Select automatic refill to ensure you’re always connected.
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9.9
Exceptional
9.9
Exceptional
Wave Connect

Wave Connect Quad Network Data Only SIM Card, Three, EE, O2, Vodafone, 4G LTE + 5G Prepaid, Activates On First Use, Includes UK, Ireland, EU, For Unlocked IoT Devices, Cameras (12GB | 12 Months)

14% Off
Why we love it
  • Versatile 3-in-1 SIM card.
  • Easy online data management.
  • Works with various devices.
Main Highlights
  • THE PLAN: Data only SIM card with 12GB valid for 12 months (not 12GB per month). Refill any time to reset the duration.
  • WHAT’S INCLUDED: A 3-in-1 SIM card with data to use across all major UK networks. The card includes standard/micro/nano sizes. This is data-only, no voice or text.
  • HOW IT WORKS: Insert to use straight away, register online to view data use and top-up.
  • WHY THIS SIM? Enjoy online access to view data consumption, add alerts and notifications when nearing your data allowance, and top-up manually or choose automatic top-ups with different data allowances available.
  • WHO’S THIS FOR? This non-steered SIM card connects to all networks so is great for trail cameras, CCTV, surveillance, security, movement cameras, solar energy monitoring systems and wind turbines - although it will work with most devices.
  • TOP-UP ANYTIME: A choice of options to add more data based on your use. Downgrade or upgrade at any time. Select automatic refill to ensure you’re always connected.
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3
O2 Data Sim Card Preloaded with UNLIMITED 4G/5G Data. Includes 25GB to Roam for Free in 47 Countries. No Contracts, No Commitments, No Credit Checks, No Tie-ins, No Personal ID. (Valid for 1 Month).

O2 Data Sim Card Preloaded with UNLIMITED 4G/5G Data. Includes 25GB to Roam for Free in 47 Countries. No Contracts, No Commitments, No Credit Checks, No Tie-ins, No Personal ID. (Valid for 1 Month).

Sims4Travel
11% Off
Why we love it
  • Unlimited 4G/5G data preloaded.
  • No contracts or commitments.
  • Supports free international roaming.
Main Highlights
  • PRELOADED DATA: O2 SIM Card Preloaded with UNLIMITED 4G/5G Data. Enjoy Super-Fast 4G/5G Data Speeds with the UK’s most reliable network. The Data Sim Bundle lasts for 1 month from first use. Easy to renew your bundle for longer
  • NO CONTRACTS: The Preloaded O2 Data SIM Card is simple to activate. There are No Contracts, No Commitments, No Credit Checks, No Tie-ins & No Personal ID required
  • FREE ROAMING: Includes 25GB of Data which can be used to Roam for Free in any of the 47 countries listed in the description below. So whether you are on Holiday, a Business Trip or Working from Home, you can count on the Preloaded O2 4G/5G Data SIM for reliable & super-fast internet
  • MULTIPLE USES: The Sim comes in a Triple-Sized format, meaning it is suitable for use with all O2 or Unlocked Mobile Wi-Fi devices, Routers, Tablets, iPads, Dongles, Laptops, Mobile Phones, CCTV & Alarm systems. Tethering & Mobile Hotspots are also supported
  • SPEED YOU WILL LOVE: Working from Home, Streaming Online, Gaming, Scrolling through Social Media - The O2 4G/5G Preloaded SIM card provides amazing performance without any speed restrictions
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9.7
Exceptional
9.7
Exceptional
Sims4Travel

O2 Data Sim Card Preloaded with UNLIMITED 4G/5G Data. Includes 25GB to Roam for Free in 47 Countries. No Contracts, No Commitments, No Credit Checks, No Tie-ins, No Personal ID. (Valid for 1 Month).

11% Off
Why we love it
  • Unlimited 4G/5G data preloaded.
  • No contracts or commitments.
  • Supports free international roaming.
Main Highlights
  • PRELOADED DATA: O2 SIM Card Preloaded with UNLIMITED 4G/5G Data. Enjoy Super-Fast 4G/5G Data Speeds with the UK’s most reliable network. The Data Sim Bundle lasts for 1 month from first use. Easy to renew your bundle for longer
  • NO CONTRACTS: The Preloaded O2 Data SIM Card is simple to activate. There are No Contracts, No Commitments, No Credit Checks, No Tie-ins & No Personal ID required
  • FREE ROAMING: Includes 25GB of Data which can be used to Roam for Free in any of the 47 countries listed in the description below. So whether you are on Holiday, a Business Trip or Working from Home, you can count on the Preloaded O2 4G/5G Data SIM for reliable & super-fast internet
  • MULTIPLE USES: The Sim comes in a Triple-Sized format, meaning it is suitable for use with all O2 or Unlocked Mobile Wi-Fi devices, Routers, Tablets, iPads, Dongles, Laptops, Mobile Phones, CCTV & Alarm systems. Tethering & Mobile Hotspots are also supported
  • SPEED YOU WILL LOVE: Working from Home, Streaming Online, Gaming, Scrolling through Social Media - The O2 4G/5G Preloaded SIM card provides amazing performance without any speed restrictions
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4
EE PAYG £10 Data Sim Includes £10 pre-paid credit, 20GB Data, 500 Minutes and Unlimited Texts (EE £10-20GB)

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

EE
5% Off
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
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9.6
Superb
9.6
Superb
EE

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

5% Off
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
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5
EE 75GB Data Sim includes £15 pre-paid credit, 75GB Data, Unlimited Minutes & Unlimited Texts

EE 75GB Data Sim includes £15 pre-paid credit, 75GB Data, Unlimited Minutes & Unlimited Texts

EE
4% Off
Why we love it
  • 25GB data for 30 days.
  • Unlimited calls and texts.
  • Free 500MB Boost.
Main Highlights
  • 75GB Data Included, lasts up to 30 days from activation
  • 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
  • Unlimited calls and 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
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9.4
Superb
9.4
Superb
EE

EE 75GB Data Sim includes £15 pre-paid credit, 75GB Data, Unlimited Minutes & Unlimited Texts

4% Off
Why we love it
  • 25GB data for 30 days.
  • Unlimited calls and texts.
  • Free 500MB Boost.
Main Highlights
  • 75GB Data Included, lasts up to 30 days from activation
  • 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
  • Unlimited calls and 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
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6
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 31.01.2026)

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 31.01.2026)

love 2 surf
3% Off
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 31 JAN 2026 – 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
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9.2
Superb
9.2
Superb
love 2 surf

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 31.01.2026)

3% Off
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 31 JAN 2026 – 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
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7
O2 PAY AS YOU GO SIM CARD WITH £10 BUNDLE - 8 GB AND UNLIMITED CALLS AND TEXTS - ROAM IN EUROPE

O2 PAY AS YOU GO SIM CARD WITH £10 BUNDLE - 8 GB AND UNLIMITED CALLS AND TEXTS - ROAM IN EUROPE

talk all day
Why we love it
  • Automatically converts into a bundle.
  • Lasts for 30 days.
  • Easy claim instructions included.
Main Highlights
  • credit will be automatically converted into a bundle
  • the £10 will be exchanged into the bundle which lasts for 30 days
  • before you can use for roaming, the sim HAS to be used in the UK
  • have to claim the credit via the instructions enclosed in the package
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9.1
Superb
9.1
Superb
talk all day

O2 PAY AS YOU GO SIM CARD WITH £10 BUNDLE - 8 GB AND UNLIMITED CALLS AND TEXTS - ROAM IN EUROPE

Why we love it
  • Automatically converts into a bundle.
  • Lasts for 30 days.
  • Easy claim instructions included.
Main Highlights
  • credit will be automatically converted into a bundle
  • the £10 will be exchanged into the bundle which lasts for 30 days
  • before you can use for roaming, the sim HAS to be used in the UK
  • have to claim the credit via the instructions enclosed in the package
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8
Lebara Mobile SIM Card with 100GB Data Plan for £10, Half Price for First 3 Months, No Contract, UK Calls, Texts, International Minutes, EU and India Roaming Included

Lebara Mobile SIM Card with 100GB Data Plan for £10, Half Price for First 3 Months, No Contract, UK Calls, Texts, International Minutes, EU and India Roaming Included

Lebara
Why we love it
  • No contracts or commitments needed.
  • Hassle-free sign-up process.
  • Total control over spending.
Main Highlights
  • No Contract - 30 day rolling plans, change or cancel anytime.
  • No Credit Check - Sign up hassle free in less than 60 seconds.
  • No Bill shocks - Total control on your spend.
  • Free roaming in the EU & India up to 30GB - Use your UK plan allowance in the EU and India as you would at home.
  • Pay As You Go - SIM card is pre-loaded with a month's data. Renew at the end of 30 days to keep your plan.
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9.0
Superb
9.0
Superb
Lebara

Lebara Mobile SIM Card with 100GB Data Plan for £10, Half Price for First 3 Months, No Contract, UK Calls, Texts, International Minutes, EU and India Roaming Included

Why we love it
  • No contracts or commitments needed.
  • Hassle-free sign-up process.
  • Total control over spending.
Main Highlights
  • No Contract - 30 day rolling plans, change or cancel anytime.
  • No Credit Check - Sign up hassle free in less than 60 seconds.
  • No Bill shocks - Total control on your spend.
  • Free roaming in the EU & India up to 30GB - Use your UK plan allowance in the EU and India as you would at home.
  • Pay As You Go - SIM card is pre-loaded with a month's data. Renew at the end of 30 days to keep your plan.
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9
EE Pay As You Go Sim Card comes With 20 GB 500 minutes and unlimited texts

EE Pay As You Go Sim Card comes With 20 GB 500 minutes and unlimited texts

talk all day
Why we love it
  • Generous 20GB data allowance.
  • Includes 500 minutes calling.
  • Unlimited texts included.
Main Highlights
  • 8GB PLUS 12 GB PROMOTIONAL DATA WITH 500 MINUTES AND UNLIMITED TEXTS FOR 30 DAYS
  • have to follow the instructions to activate the allowances
  • 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
  • have to follow the instructions to activate the allowances
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8.8
Excellent
8.8
Excellent
talk all day

EE Pay As You Go Sim Card comes With 20 GB 500 minutes and unlimited texts

Why we love it
  • Generous 20GB data allowance.
  • Includes 500 minutes calling.
  • Unlimited texts included.
Main Highlights
  • 8GB PLUS 12 GB PROMOTIONAL DATA WITH 500 MINUTES AND UNLIMITED TEXTS FOR 30 DAYS
  • have to follow the instructions to activate the allowances
  • 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
  • have to follow the instructions to activate the allowances
Show More
10
Lebara Mobile SIM Card with Unlimited Data Plan for £12.50, Half Price for First 3 Months, No Contract, UK Calls, Texts, International Minutes, EU and India Roaming Included

Lebara Mobile SIM Card with Unlimited Data Plan for £12.50, Half Price for First 3 Months, No Contract, UK Calls, Texts, International Minutes, EU and India Roaming Included

Lebara
Why we love it
  • Huge savings for three months.
  • Convenient pre-loaded plan available.
  • Flexibility to change anytime.
Main Highlights
  • No Contract - 30 day rolling plans, change or cancel anytime.
  • No Credit Check - Sign up hassle free in less than 60 seconds.
  • No Bill shocks - Total control on your spend.
  • Free roaming in the EU & India up to 30GB - Use your UK plan allowance in the EU and India as you would at home.
  • Pay As You Go - SIM card is pre-loaded with a month's data. Renew at the end of 30 days to keep your plan.
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8.7
Excellent
8.7
Excellent
Lebara

Lebara Mobile SIM Card with Unlimited Data Plan for £12.50, Half Price for First 3 Months, No Contract, UK Calls, Texts, International Minutes, EU and India Roaming Included

Why we love it
  • Huge savings for three months.
  • Convenient pre-loaded plan available.
  • Flexibility to change anytime.
Main Highlights
  • No Contract - 30 day rolling plans, change or cancel anytime.
  • No Credit Check - Sign up hassle free in less than 60 seconds.
  • No Bill shocks - Total control on your spend.
  • Free roaming in the EU & India up to 30GB - Use your UK plan allowance in the EU and India as you would at home.
  • Pay As You Go - SIM card is pre-loaded with a month's data. Renew at the end of 30 days to keep your plan.
Show More