10 Best Data Sim Card in The UK

Last updated on 02/08/2025

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Three 80GB Data SIM – Uncapped 5G Speeds – Preloaded EVERY MONTH Until 8th JANUARY 2027 – No Contract – Plug & Play for Business Broadband, Routers & Phones

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Why We Love It

Generous 80GB data monthly.
Instant connectivity, no setup.
Portable Wi-Fi hub feature.

Main Highlights

PRELOADED DATA - 80GB Data renewed monthly until 8th January 2027 for a one-off payment.
EFFORTLESS PLUG & PLAY – Enjoy seamless 4G and 5G connectivity with no initial setup required.
THE UK’S FASTEST 5G NETWORK – Stream, play, watch, work & explore with the power of 5G.
UNIVERSAL DEVICE COMPATIBILITY - Optimised for Smartphones, Tablets, Laptops, Mobile Wi-Fi Dongles, Routers, IoT Devices, Smart Meters, Vehicles, Drones, GPS Trackers, Smart Home Devices & Security Cameras.
DEDICATED SUPPORT - Gain peace of mind with our dedicated business customer support, ready to assist you whenever needed. Please reach us at support@scancom.co.uk with the sim number and order reference.
ZERO CONTRACTS - Benefit from our data services without the burden of contracts or recurring fees.
VERSATILE TRIPLE CUT SIM - Our all-in-one sim card fits any Standard, Micro, and Nano size device.
EXCLUSIVE UK DATA-ONLY - This Sim card does not support calls, texts, or roaming.
Sims cannot be ported/transferred, promotions are non-renewable, and support for pre-registered sims is available exclusively via email.
This item is tailored for business customers. If your order is not in the name of company / non profit registered at companies house or an Amazon business customer, by purchasing, you affirm your status as a self-employed individual.

Three 500GB Data SIM – Uncapped 5G Speeds – Preloaded EVERY MONTH Until 8th OCTOBER 2025 – No Contract – Plug & Play for Business Broadband, Routers & Phones

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Why We Love It

500GB monthly data renewal.
Effortless plug & play.
Zero contracts or fees.

Main Highlights

PRELOADED DATA - 500GB Data renewed monthly until 8th OCTOBER 2025 for a one-off payment.
EFFORTLESS PLUG & PLAY – Enjoy seamless 4G and 5G connectivity with no initial setup required.
THE UK’S FASTEST 5G NETWORK – Stream, play, watch, work & explore with the power of 5G.
UNIVERSAL DEVICE COMPATIBILITY - Optimised for Smartphones, Tablets, Laptops, Mobile Wi-Fi Dongles, Routers, IoT Devices, Smart Meters, Vehicles, Drones, GPS Trackers, Smart Home Devices & Security Cameras.
DEDICATED SUPPORT - Gain peace of mind with our dedicated business customer support, ready to assist you whenever needed. Please reach us at support@scancom.co.uk with the sim number and order reference.
ZERO CONTRACTS - Benefit from our data services without the burden of contracts or recurring fees.
VERSATILE TRIPLE CUT SIM - Our all-in-one sim card fits any Standard, Micro, and Nano size device.
EXCLUSIVE UK DATA-ONLY - This Sim card does not support calls, texts, or roaming.
Sims cannot be ported/transferred, promotions are non-renewable, and support for pre-registered sims is available exclusively via email.
This item is tailored for business customers. If your order is not in the name of company / non profit registered at companies house or an Amazon business customer, by purchasing, you affirm your status as a self-employed individual.

Three Unlimited Data SIM – Uncapped 5G Speeds – Preloaded EVERY MONTH Until 8th AUGUST 2026 – No Contract – Plug & Play for Business Broadband, Routers & Phones

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Why We Love It

Unlimited data till 2026.
Effortless plug & play.
Zero contracts, no fees.

Main Highlights

PRELOADED DATA - Unlimited Data renewed monthly until 8th August 2026 for a one-off payment.
EFFORTLESS PLUG & PLAY – Enjoy seamless 4G and 5G connectivity with no initial setup required.
THE UK’S FASTEST 5G NETWORK – Stream, play, watch, work & explore with the power of 5G.
UNIVERSAL DEVICE COMPATIBILITY - Optimised for Smartphones, Tablets, Laptops, Mobile Wi-Fi Dongles, Routers, IoT Devices, Smart Meters, Vehicles, Drones, GPS Trackers, Smart Home Devices & Security Cameras.
DEDICATED SUPPORT - Gain peace of mind with our dedicated business customer support, ready to assist you whenever needed. Please reach us at support@scancom.co.uk with the sim number and order reference.
ZERO CONTRACTS - Benefit from our data services without the burden of contracts or recurring fees.
VERSATILE TRIPLE CUT SIM - Our all-in-one sim card fits any Standard, Micro, and Nano size device.
EXCLUSIVE UK DATA-ONLY - This Sim card does not support calls, texts, or roaming. There is a fair use policy of 1000GB per month.
Sims cannot be ported/transferred, promotions are non-renewable, and support for pre-registered sims is available exclusively via email.
This item is tailored for business customers. If your order is not in the name of company / non-profit registered at companies house or an Amazon business customer, by purchasing, you affirm your status as a self-employed individual.

EE PAYG SIM card preloaded with 120GB of Data

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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

Three 25GB Data SIM – Uncapped 5G Speeds – Preloaded EVERY MONTH Until 8th FEBRUARY 2027 – No Contract – Plug & Play for Business Broadband, Routers & Phones

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Why We Love It

Instant connectivity with no setup.
Automatically refreshed monthly data.
No contract or monthly fees.

Main Highlights

PRELOADED DATA - 25GB Data renewed monthly until 8th February 2027 for a one-off payment.
EFFORTLESS PLUG & PLAY – Enjoy seamless 4G and 5G connectivity with no initial setup required.
THE UK’S FASTEST 5G NETWORK – Stream, play, watch, work & explore with the power of 5G.
UNIVERSAL DEVICE COMPATIBILITY - Optimised for Smartphones, Tablets, Laptops, Mobile Wi-Fi Dongles, Routers, IoT Devices, Smart Meters, Vehicles, Drones, GPS Trackers, Smart Home Devices & Security Cameras.
DEDICATED SUPPORT - Gain peace of mind with our dedicated business customer support, ready to assist you whenever needed. Please reach us at support@scancom.co.uk with the sim number and order reference.
ZERO CONTRACTS - Benefit from our data services without the burden of contracts or recurring fees.
VERSATILE TRIPLE CUT SIM - Our all-in-one sim card fits any Standard, Micro, and Nano size device.
EXCLUSIVE UK DATA-ONLY - This Sim card does not support calls, texts, or roaming.
Sims cannot be ported/transferred, promotions are non-renewable, and support for pre-registered sims is available exclusively via email.
This item is tailored for business customers. If your order is not in the name of company / non profit registered at companies house or an Amazon business customer, by purchasing, you affirm your status as a self-employed individual.

EE PAYG MBB 120GB 12 Months SIM (EE PAYG MBB 120GB 12 Months SIM)

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Why We Love It

Generous 120GB data upon activation.
Zero contracts attached.
Comes in all SIM sizes.

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

Three Mobile Pay As You Go Mobile Broadband 24 GB data SIM

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Why We Love It

24GB data lasting 24 months.
5G access at no cost.
Compatible with any unlocked device.

Main Highlights

Pre-loaded with 24GB of data that lasts up to 24 months.
Access to our 5G network – at no extra cost.
Use data in 71 destinations – up to 12GB
SIM fits any unlocked 3G, 4G and 5G device.

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).

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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

O2 Data Sim Card Preloaded with UNLIMITED 4G/5G Data. No Contracts, No Commitments, No Credit Checks, No Tie-ins, No Personal ID. (Valid for 1 Month)

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Why We Love It

Unlimited high-speed data access.
No contracts or commitments.
Supports all devices seamlessly.

Main Highlights

O2 Data Sim Card Preloaded with UNLIMITED 4G/5G Data. No Contracts, No Commitments, No Credit Checks, No Tie-ins, No Personal ID. (Valid for 1 Month)
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.
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 and more. 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 Data SIM provides amazing performance without any speed restrictions.

EE 150GB Data Sim includes £20 pre-paid credit, 150GB Data, Unlimited Minutes & Unlimited Texts

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Why We Love It

Generous 50GB data allotment.
500MB free on extra packs.
Unlimited calls and texts.

Main Highlights

150GB Data Included, lasts up to 30 days
The sim you receive may be in old style packaging but will include the data allowances as per the description
Roaming is not included
Free Boost - Buy 2 packs and get 2GB free
Unlimited calls and texts

8.7

Excellent

We scanned 1282 products

We reviewed these offers relevant to the Data 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 Scancom, EE, 3, Sims4Travel, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Data Sim Card in the market, we considered we took a deep dive into 6411 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 Three 80GB Data SIM – Uncapped 5G Speeds – Preloaded EVERY MONTH Until 8th JANUARY 2027 – No Contract – Plug & Play for Business Broadband, Routers & Phones. We love many things about this product by Scancom. What sets it apart from the competition is Generous 80GB data monthly, Instant connectivity, no setup, Portable Wi-Fi hub feature.
The best value product for most shoppers and where user satisfaction is continuously the highest is Three 500GB Data SIM – Uncapped 5G Speeds – Preloaded EVERY MONTH Until 8th OCTOBER 2025 – No Contract – Plug & Play for Business Broadband, Routers & Phones by Scancom based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Data Sim Card and the best cost-to-value ratio is EE PAYG SIM card preloaded with 120GB of Dataat EE with a 18% discount.
Our list of the best Data 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 Data Sim Card in The UK

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UK Multi-Network Data SIM Card | Automatically Selects the Strongest Network: EE, Three, O2, or Vodafone (1GB - 12 Months)

We scanned 1282 products

We concluded that: