10 Best Sim Card in The UK

Last updated on 29/06/2025

Advertising disclosure

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

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

Free Shipping

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

THREE 4G/5G SIM Card UK & ROAM FREE in over 70 destinations - PREPAID PAYG £10 Bundle - 20GB + (20GB FREE DATA) Unltd Texts & Mins - ROAMING ALLOWANCE 6GB

5% OffFree Shipping

Why We Love It

Generous data bundle with auto-renew.
Global roaming in 70 destinations.
Fastest 5G network in UK.

Main Highlights

Quick & Easy Sim Activation - FREE 20GB PROMO – total 40GB
Bundle lasts 30 days from activation. NOTE: CREDIT WILL BE ZERO - allocated to bundle allowance
Travelling abroad - GO ROAM in over 70 destinations (includes EUROPE) - ROAMING ALLOWANCE 6GB, calls and texts to UK numbers only
UK’s fastest 5G network -Trio SIM fits any unlocked 4G and 5G device. Personal hotspot/tethering allowed
INTERNATIONAL CALLING SERVICE TO USE WITH SIM - E.g. USA - 0.3p/min and EU - 0.3p/min (optional extra)

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)

Free Shipping

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

O2 SIM Card UK & EUROPE (ROAM FREE) PREPAID PAYG £10 Bundle -8GB + Unltd Texts & Mins - ROAMING ALLOWANCE 8GB + International Calling Option - (Love2surf RETAIL PACK)

5% OffFree Shipping

Why We Love It

Convenient prepaid bundle.
Roaming within EU zone.
Affordable international calls.

Main Highlights

QUICK & EASY SIM ACTIVATION - 8GB
Bundle lasts 30 days from activation. NOTE: CREDIT WILL BE ZERO - allocated to bundle allowance (see description)
MUST USE SIM IN UK PRIOR TO USE IN EUROPE – data is limited to 25GB while roaming (calls & texts allowance is for UK numbers only)
Trio SIM fits any unlocked 2G and above phone or devices locked to O2 network. Personal hotspot/tethering allowed
INTERNATIONAL CALLING SERVICE TO USE WITH SIM - E.g. USA - 0.3p/min and EU - 0.3p/min (optional extra)

Three Mobile PAYG Voice SIM Pack - 40GB - £10

Free Shipping

Why We Love It

Preloaded data and unlimited connectivity.
Complimentary 5G network access.
International usage in 71 destinations.

Main Highlights

Pre-loaded with 40GB of data, unlimited minutes and texts.
Access to our 5G network – at no extra cost.
Call, text and use data in 71 destinations – up to 6GB
Data Pack lasts one month.
SIM fits any unlocked 3G, 4G and 5G device.

Lebara UK Unlimited Data Pay As You Go SIM Card, Unlimited UK Minutes & Texts, 100 International minutes for £25

Free Shipping

Why We Love It

Pre-loaded plan ready to use.
Cancel or change anytime.
Keep your existing number.

Main Highlights

Plan is Pre-loaded and ready to use
1 month plan. No contract. Change or cancel anytime
50% Off for 3 months when you renew
No Credit Check
Keep your existing number

Lebara UK Pay As You Go SIM Card - 5GB Data, 1000 UK Minutes & Texts, 100 International minutes for £5

17% OffFree Shipping

Why We Love It

Pre-loaded plan, ready to use.
No contract, cancel anytime.
Keep your existing number.

Main Highlights

Plan is Pre-loaded and ready to use
1 month plan. No contract. Change or cancel anytime
50% Off for 3 months when you renew
No Credit Check
Keep your existing number

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

Free Shipping

Why We Love It

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

Main Highlights

50% Off for 3 months. 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, India and China roaming included.

OFFICIAL LYCAMOBILE - MICRO/ STANDARD SIM CARD UK BUYERS ONLY PLEASE !

37% Off

Why We Love It

Excellent calling rates worldwide.
Convenient SIM card solution.
Stay connected effortlessly abroad.

Main Highlights

Excellent international calling rates
Product type: SIM CARD

8.7

Excellent

Save 37%

We scanned 424 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 Lebara, EE, love 2 surf, 3 MOBILE, Lycamobile, 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 2121 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 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. We love many things about this product by Lebara. What sets it apart from the competition is Huge savings for three months. , Convenient pre-loaded plan available. , Flexibility to change anytime. .
The best value product for most shoppers and where user satisfaction is continuously the highest is EE PAYG £10 Data Sim Includes £10 pre-paid credit, 8GB Data, 500 Minutes and Unlimited Texts (EE £10-20GB) by EE 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 OFFICIAL LYCAMOBILE - MICRO/ STANDARD SIM CARD UK BUYERS ONLY PLEASE !at Lycamobile with a 37% 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

Related Deals You Might Like for Sim Card

Vodafone Pay As You Go Sim Card

O2 Pay As You Go Sim Card, blue

Vodafone UK 2G 3G 4G Multi Size SIM Card - Pay As You Go. Standard/Micro/Nano

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

Lebara SIM Only Deal, Contract Free SIM Only Deal for Flexible Use, PAYG - Applicable for Standard, Micro and Nano SIM Card, Cheap International Calls in 40+ Countries

EE £15 Data Pack Pay As You Go Sim Card - Standard, Micro & Nano Included

SMARTY Unlimited SIM Only 1-month flexible plan

SIM CARD, 3 IN 1 SIM, PAYG, EE

Lebara Pay As You Go International Sim Card

SMARTY Unlimited Data only SIM. 1 month plan, No contract, EU Roaming

We scanned 424 products

We concluded that: