BEST DEALS THIS WEEK

10 Best No Contract Sim Cards For Unlimited Data - May 2026

19M consumers helped this year.

Last Updated: 27-05-2026

1

Lebara Mobile SIM Card: Unlimited Data SIM Only Plan for £12.50, Half Price for First 3 Months, No Contract, UK Calls, Texts, International Minutes, EU and India Roaming Included, Fits All Devices

Lebara Mobile SIM Card: Unlimited Data SIM Only Plan for £12.50, Half Price for First 3 Months, No Contract, UK Calls, Texts, International Minutes, EU and India Roaming Included, Fits All Devices

Lebara

9.8

9.8

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2

Three Unlimited 5G Data SIM Card - No Contract or Credit Check - Rolling 30-Day £25/Month Subscription

Three Unlimited 5G Data SIM Card - No Contract or Credit Check - Rolling 30-Day £25/Month Subscription

Scancom

9.6

9.6

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3

- 60%

EE Unlimited 5G Data SIM - No Contract or Credit Check - Rolling 30-Days £25/Month Subscription

EE Unlimited 5G Data SIM - No Contract or Credit Check - Rolling 30-Days £25/Month Subscription

Scancom

9.5

9.5

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4

EE Unlimited Data SIM – Uncapped 5G Speeds – No Contract – Preloaded Until 4th March 2028 – Plug & Play Broadband for Routers & Phones

EE Unlimited Data SIM – Uncapped 5G Speeds – No Contract – Preloaded Until 4th March 2028 – Plug & Play Broadband for Routers & Phones

Scancom

9.2

9.2

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5

- 14%

EE Unlimited Data SIM – Uncapped 5G Speeds – No Contract – Preloaded for 1 Month from Order – Mobile Broadband for Routers & Phones

EE Unlimited Data SIM – Uncapped 5G Speeds – No Contract – Preloaded for 1 Month from Order – Mobile Broadband for Routers & Phones

Scancom

9.1

9.1

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6

SMARTY Unlimited Data only SIM. 1 Month Plan, No Contract, EU Roaming

SMARTY Unlimited Data only SIM. 1 Month Plan, No Contract, EU Roaming

SMARTY

8.8

8.8

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7

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).

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

8.6

8.6

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8

- 7%

Giffgaff Nano/Micro/Standard SIM. Top Tariff Offers Unlimited Calls, Text, Data - Just Pay As You Go - no Contract. Multi Size, Fits All Devices. £5 Bonus Credit When You Top up £10 First Time.

Giffgaff Nano/Micro/Standard SIM. Top Tariff Offers Unlimited Calls, Text, Data - Just Pay As You Go - no Contract. Multi Size, Fits All Devices. £5 Bonus Credit When You Top up £10 First Time.

Giffgaff

8.4

8.4

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9

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)

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)

Sims4Travel

8.2

8.2

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10

Vodafone Unlimited Data SIM - Preloaded for 6 Months - No Contract - Quick Activation Within 1 Working Day - Mobile Broadband for Routers, Tablets & Phones

Vodafone Unlimited Data SIM - Preloaded for 6 Months - No Contract - Quick Activation Within 1 Working Day - Mobile Broadband for Routers, Tablets & Phones

Scancom

8.1

8.1

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