Three 12-month SIM only deals
Three 12-month SIM only deals are a great way to save money by committing longer. If you need something different, Three are have a range of other SIM only deals available:
Our top pick
Mobile SIM Deal
12 months
DATA
Unlimited
allowance
MINUTES
Unlimited
allowance
PRICE
£18
per month
Airtime plan will increase every April bill thereafter. Price will be £19.50 from Apr 2026.
Mobile SIM Deal
12 months
DATA
250 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£16
per month
Airtime plan will increase every April bill thereafter. Price will be £17.50 from Apr 2026.
Mobile SIM Deal
12 months
DATA
120 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£12
per month
Airtime plan will increase every April bill thereafter. Price will be £13.50 from Apr 2026.
Mobile SIM Deal
12 months
DATA
80 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£10
per month
Airtime plan will increase every April bill thereafter. Price will be £11.25 from Apr 2026.
Mobile SIM Deal
12 months
DATA
60 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£9
per month
Airtime plan will increase every April bill thereafter. Price will be £10.25 from Apr 2026.
Mobile SIM Deal
12 months
DATA
40 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£8
per month
Airtime plan will increase every April bill thereafter. Price will be £9.25 from Apr 2026.
Mobile SIM Deal
12 months
DATA
25 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£7
per month
Airtime plan will increase every April bill thereafter. Price will be £8.25 from Apr 2026.
