10 Best Unlimited Data Sim Uk

10 Best unlimited data sim uk - December 2025

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Last Updated: 28-12-2025

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EE Unlimited Data SIM – Uncapped 5G Speeds – Preloaded monthly Until 8th October 2027 – No Contract – Plug & Play for Broadband, Routers & Phones

Scancom

9.8

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29% Off

EE Unlimited Data SIM - Includes 25GB Europe Roaming – Uncapped 5G Speeds – Preloaded Monthly Until 8th October 2027 – Ideal for Routers & Travel

Scancom

9.6

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Best value

20% Off

Three Unlimited Data SIM - Uncapped 5G - Preloaded MONTHLY Until September 2028 - Plug & Play for Routers & Phones - Access to Three & Vodafone - Connects to the Strongest Signal available

Scancom

9.5

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Three Unlimited Data SIM - Uncapped 5G - Preloaded MONTHLY Until January 2026 - Plug & Play for Routers & Phones - Access to Three & Vodafone - Connects to the Strongest Signal available

Scancom

9.2

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17% Off

Three Unlimited Data SIM - Uncapped 5G - Preloaded MONTHLY Until April 2026 - Plug & Play for Routers & Phones - Access to Three & Vodafone - Connects to the Strongest Signal available

Scancom

9.1

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7% Off

EE Unlimited Data Sim includes £35 pre-paid credit, Unlimited Data, Unlimited Minutes & Unlimited Texts

8.8

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9% Off

EE Pay As You Go SIM Card UK PREPAID PAYG £35 Bundle - UNLIMITED DATA + Texts & Mins

love 2 surf

8.6

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11% Off

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

8.4

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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

8.2

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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

8.1

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EE Unlimited Data SIM – Uncapped 5G Speeds – Preloaded monthly Until 8th October 2027 – No Contract – Plug & Play for Broadband, Routers & Phones

EE Unlimited Data SIM - Includes 25GB Europe Roaming – Uncapped 5G Speeds – Preloaded Monthly Until 8th October 2027 – Ideal for Routers & Travel

Three Unlimited Data SIM - Uncapped 5G - Preloaded MONTHLY Until September 2028 - Plug & Play for Routers & Phones - Access to Three & Vodafone - Connects to the Strongest Signal available

Three Unlimited Data SIM - Uncapped 5G - Preloaded MONTHLY Until January 2026 - Plug & Play for Routers & Phones - Access to Three & Vodafone - Connects to the Strongest Signal available

Three Unlimited Data SIM - Uncapped 5G - Preloaded MONTHLY Until April 2026 - Plug & Play for Routers & Phones - Access to Three & Vodafone - Connects to the Strongest Signal available

EE Unlimited Data Sim includes £35 pre-paid credit, Unlimited Data, Unlimited Minutes & Unlimited Texts

EE Pay As You Go SIM Card UK PREPAID PAYG £35 Bundle - UNLIMITED DATA + Texts & Mins

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 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 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

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