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Preloaded Data Sim Cards Comparison - July 2025

7 Best Preloaded Data Sim Cards In the UK

1
Best Choice
9.7Exceptional
2
9.6Exceptional
3
9.4Excellent
4
9.1Excellent
5
Best Value
9.0Excellent
6
8.9Very Good
7
8.8Very Good
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Model

Three Mobile Pay As You Go Mobile Broadband 24 GB data SIM
Model
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).
Model
Three Mobile Pay As You Go Mobile Broadband 12 GB data SIM
Model
EE Pay As You Go Sim Card Preloaded With £10 Credit includes 20GB data plus 500 minutes and unlimited texts.
Model
Three 500GB Data SIM – Uncapped 5G Speeds – Renewed EVERY MONTH Until 8th SEPTEMBER 2025 – No Contract – Ideal for Business Mobile Broadband, Routers & Phones
Model
Three 25GB Data SIM – Uncapped 5G Speeds – Renewed EVERY MONTH Until 8th FEBRUARY 2027 – No Contract – Ideal for Business Mobile Broadband, Routers & Phones
Model
Three UK 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)

Brand

3 MOBILE
Brand
Sims4Travel
Brand
3 MOBILE
Brand
EE
Brand
Scancom
Brand
Scancom
Brand
Sims4Home

Reviews

8 reviews
Reviews
1,924 reviews
Reviews
7,408 reviews
Reviews
8,796 reviews
Reviews
1,108 reviews
Reviews
992 reviews
Reviews
1,060 reviews

Features

Worth the money

9.6
Worth the money
9.1
Worth the money
8.6
Worth the money
7.6
Worth the money
7.0
Worth the money
7.0
Worth the money
7.0

For vacation

9.3
For vacation
9.3
For vacation
8.9
For vacation
7.0
For vacation
7.0
For vacation
7.0
For vacation
7.0

Wi Fi signal

9.3
Wi Fi signal
9.1
Wi Fi signal
8.9
Wi Fi signal
7.0
Wi Fi signal
7.0
Wi Fi signal
7.0
Wi Fi signal
7.0

Tech Specs

product dimensions

-
product dimensions
8.6 x 0.1 x 5.4 cm 2 g
product dimensions
8.99 x 7.19 x 2.01 cm 9.07 g
product dimensions
13 x 9.5 x 0.1 cm 30 g
product dimensions
15 x 9 x 0.1 cm 20 g
product dimensions
15 x 9 x 0.1 cm 20 g
product dimensions
5.4 x 4.2 x 0.1 cm 30 g

Available On

Available On
Available On
Available On
Available On
Available On
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Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.7
    1
    3 MOBILE

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

    9.6 worth the money
    9.3 For vacation
    9.3 Wi Fi signal

    Why we love it

    Long-lasting data validity.
    Global data usage capability.
    Free 5G network access.
  • 9.6
    2
    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).

    9.3 For vacation
    9.1 worth the money
    9.1 Wi Fi signal

    Why we love it

    Unlimited data with no contracts.
    Free roaming in 47 countries.
    Supports multiple devices easily.
  • 9.4
    3
    3 MOBILE
    21% Off

    Three Mobile Pay As You Go Mobile Broadband 12 GB data SIM

    8.9 For vacation
    8.9 Wi Fi signal
    8.6 worth the money

    Why we love it

    Affordable 12GB data lasts up to 12 months.
    Access 5G network without extra cost.
    Works in 71 destinations worldwide.

Our ranking system

The TopChoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. TopChoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.

Features

Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
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Consumer Reviews

We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
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Popularity

Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
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Value for money

TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.

When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.