10 Best Preloaded Data Sim Cards

10 Best preloaded data sim cards - July 2025

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Last Updated: 13-07-2025

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

Scancom

9.8

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

Scancom

9.6

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Three 500GB Data SIM – Uncapped 5G Speeds – Preloaded EVERY MONTH Until 8th NOVEMBER 2027 – No Contract – Plug & Play for Business Broadband, Routers & Phones

Scancom

9.5

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Best value

17% Off

EE PAYG SIM card preloaded with 120GB of Data

9.2

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

9.1

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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

8.8

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

8.6

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12% Off

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)

Sims4Home

8.4

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

Lebara

8.2

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

8.1

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

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

Three 500GB Data SIM – Uncapped 5G Speeds – Preloaded EVERY MONTH Until 8th NOVEMBER 2027 – No Contract – Plug & Play for Business Broadband, Routers & Phones

EE PAYG SIM card preloaded with 120GB of Data

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

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).

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

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)

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

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

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