O2 12-month SIM only deals
O2 12-month SIM only deals are a great way to use O2 if you don't need a new phone. If you need something different, O2 are have a range of other SIM only deals available:
Our top pick
Mobile SIM Deal
12 months
DATA
40 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£24.99
per month
Airtime plan will increase every April bill thereafter. Price will be £26.79 from Apr 2026. Airtime plan will increase every April bill thereafter. Price will be £28.59 from Apr 2027.
Mobile SIM Deal
12 months
DATA
150 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£28.99
per month
Airtime plan will increase every April bill thereafter. Price will be £30.79 from Apr 2026. Airtime plan will increase every April bill thereafter. Price will be £32.59 from Apr 2027.
Mobile SIM Deal
12 months
DATA
Unlimited
allowance
MINUTES
Unlimited
allowance
PRICE
£35.00
per month
Includes: Choose 3 months of Disney+ Standard, Amazon Prime, or more.
Airtime plan will increase every April bill thereafter. Price will be £36.80 from Apr 2026. Airtime plan will increase every April bill thereafter. Price will be £38.60 from Apr 2027.
Mobile SIM Deal
12 months
DATA
100 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£27.00
per month
Includes: Choose 3 months of Disney+ Standard, Amazon Prime, or more.
Airtime plan will increase every April bill thereafter. Price will be £28.80 from Apr 2026. Airtime plan will increase every April bill thereafter. Price will be £30.60 from Apr 2027.
Mobile SIM Deal
12 months
DATA
10 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£20.99
per month
Airtime plan will increase every April bill thereafter. Price will be £22.79 from Apr 2026. Airtime plan will increase every April bill thereafter. Price will be £24.59 from Apr 2027.
Mobile SIM Deal
12 months
DATA
3 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£19.00
per month
Includes: Choose 3 months of Disney+ Standard, Amazon Prime, or more.
Airtime plan will increase every April bill thereafter. Price will be £20.80 from Apr 2026. Airtime plan will increase every April bill thereafter. Price will be £22.60 from Apr 2027.
Mobile SIM Deal
12 months
DATA
20 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£23.00
per month
Includes: Choose 3 months of Disney+ Standard, Amazon Prime, or more.
Airtime plan will increase every April bill thereafter. Price will be £24.80 from Apr 2026. Airtime plan will increase every April bill thereafter. Price will be £26.60 from Apr 2027.
Mobile SIM Deal
12 months
DATA
40 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£33.49
per month
Airtime plan will increase every April bill thereafter. Price will be £35.29 from Apr 2026. Airtime plan will increase every April bill thereafter. Price will be £37.09 from Apr 2027.
Mobile SIM Deal
12 months
DATA
Unlimited
allowance
MINUTES
Unlimited
allowance
PRICE
£45.49
per month
Airtime plan will increase every April bill thereafter. Price will be £47.29 from Apr 2026. Airtime plan will increase every April bill thereafter. Price will be £49.09 from Apr 2027.
Mobile SIM Deal
12 months
DATA
150 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£37.49
per month
Airtime plan will increase every April bill thereafter. Price will be £39.29 from Apr 2026. Airtime plan will increase every April bill thereafter. Price will be £41.09 from Apr 2027.
Mobile SIM Deal
12 months
DATA
10 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£29.49
per month
Airtime plan will increase every April bill thereafter. Price will be £31.29 from Apr 2026. Airtime plan will increase every April bill thereafter. Price will be £33.09 from Apr 2027.
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