12 month mobile contracts
Compare 12 month mobile contracts from the UK's leading networks.
Prices correct as of September 2026. We may earn commission when you click through — this never affects our rankings.
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Showing 20 of 53 deals
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iD Mobile
4.34.3 (70000)
Uses Three network
No price riseData rollover5G
Data
50GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
£60 cashback (claim required)
£8.00/mo
50GB · 12 months
Unlimited calls & texts
No price riseData rollover5G
£96.00 total over 12 months
Continue on iD Mobile
✓ Roll over unused data✓ No roaming charges in EU✓ No price rises mid-contract
LB
Lebara
4.84.8 (78000)
Uses Vodafone network
EU roamingInternational calls5G
Data
5GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
£4.50/mo
5GB · 12 months
Unlimited calls & texts
EU roamingInternational calls5G
£54.00 total over 12 months
Continue on Lebara
✓ International minutes included✓ EU roaming included✓ No credit check
Top pick
iD Mobile
4.34.3 (70000)
Uses Three network
No price riseData rollover5G
Data
120GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
✓ £60 automatic cashback
£10.00/mo
120GB · 12 months
Unlimited calls & texts
No price riseData rollover5G
£120.00 total over 12 months
Continue on iD Mobile
✓ Roll over unused data✓ No roaming charges in EU✓ No price rises mid-contract
iD Mobile
4.34.3 (70000)
Uses Three network
No price riseData rollover5G
Data
99GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
£48 cashback (claim required)
£9.00/mo
99GB · 12 months
Unlimited calls & texts
No price riseData rollover5G
£108.00 total over 12 months
Continue on iD Mobile
✓ Roll over unused data✓ No roaming charges in EU✓ No price rises mid-contract
Vodafone
Vodafone network
5G readyEU roaming
Data
50GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
£36 cashback (claim required)
£8.00/mo
50GB · 12 months
Unlimited calls & texts
5G readyEU roaming
£96.00 total over 12 months
Continue on Vodafone
✓ 5G ready✓ EU roaming included✓ Vodafone Together discounts
iD Mobile
4.34.3 (70000)
Uses Three network
No price riseData rollover5G
Data
60GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
✓ £30 automatic cashback
£8.00/mo
60GB · 12 months
Unlimited calls & texts
No price riseData rollover5G
£96.00 total over 12 months
Continue on iD Mobile
✓ Roll over unused data✓ No roaming charges in EU✓ No price rises mid-contract
AM
Asda Mobile
3.73.7 (17000)
Uses Vodafone network
No contractNo price rise5G
Data
10GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
£5.95/mo
10GB · 12 months
Unlimited calls & texts
No contractNo price rise5G
£71.40 total over 12 months
Continue on Asda Mobile
✓ No contract✓ Free SIM✓ Rewards with Asda shopping
iD Mobile
4.34.3 (70000)
Uses Three network
No price riseData rollover5G
Data
15GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
£6.00/mo
15GB · 12 months
Unlimited calls & texts
No price riseData rollover5G
£72.00 total over 12 months
Continue on iD Mobile
✓ Roll over unused data✓ No roaming charges in EU✓ No price rises mid-contract
iD Mobile
4.34.3 (70000)
Uses Three network
No price riseData rollover5G
Data
8GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
£6.00/mo
8GB · 12 months
Unlimited calls & texts
No price riseData rollover5G
£72.00 total over 12 months
Continue on iD Mobile
✓ Roll over unused data✓ No roaming charges in EU✓ No price rises mid-contract
Vodafone
Vodafone network
5G readyEU roaming
Data
16GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
✓ £10 automatic cashback
£7.00/mo
16GB · 12 months
Unlimited calls & texts
5G readyEU roaming
£84.00 total over 12 months
Continue on Vodafone
✓ 5G ready✓ EU roaming included✓ Vodafone Together discounts
Vodafone
Vodafone network
5G readyEU roaming
Data
100GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
£60 cashback (claim required)
£12.00/mo
100GB · 12 months
Unlimited calls & texts
5G readyEU roaming
£144.00 total over 12 months
Continue on Vodafone
✓ 5G ready✓ EU roaming included✓ Vodafone Together discounts
iD Mobile
4.34.3 (70000)
Uses Three network
No price riseData rollover5G
Data
30GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
£12 cashback (claim required)
£8.00/mo
30GB · 12 months
Unlimited calls & texts
No price riseData rollover5G
£96.00 total over 12 months
Continue on iD Mobile
✓ Roll over unused data✓ No roaming charges in EU✓ No price rises mid-contract
Vodafone
Vodafone network
5G readyEU roaming
Data
30GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
£36 cashback (claim required)
£10.00/mo
30GB · 12 months
Unlimited calls & texts
5G readyEU roaming
£120.00 total over 12 months
Continue on Vodafone
✓ 5G ready✓ EU roaming included✓ Vodafone Together discounts
iD Mobile
4.34.3 (70000)
Uses Three network
No price riseData rollover5G
Data
25GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
£7.00/mo
25GB · 12 months
Unlimited calls & texts
No price riseData rollover5G
£84.00 total over 12 months
Continue on iD Mobile
✓ Roll over unused data✓ No roaming charges in EU✓ No price rises mid-contract
iD Mobile
4.34.3 (70000)
Uses Three network
No price riseData rollover5G
Data
20GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
£7.00/mo
20GB · 12 months
Unlimited calls & texts
No price riseData rollover5G
£84.00 total over 12 months
Continue on iD Mobile
✓ Roll over unused data✓ No roaming charges in EU✓ No price rises mid-contract
O2
O2 network
O2 PriorityEU roaming
Data
10GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
£7.00/mo
10GB · 12 months
Unlimited calls & texts
O2 PriorityEU roaming
£84.00 total over 12 months
Continue on O2
✓ O2 Priority rewards✓ EU roaming included✓ 5G at no extra cost
Three
Three network
Go Roam5G ready
Data
8GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
£7.00/mo
8GB · 12 months
Unlimited calls & texts
Go Roam5G ready
£84.00 total over 12 months
Continue on Three
✓ Go Roam in 71 destinations✓ Unlimited data plans✓ 5G included
Vodafone
Vodafone network
5G readyEU roaming
Data
70GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
✓ £20 automatic cashback
£9.00/mo
70GB · 12 months
Unlimited calls & texts
5G readyEU roaming
£108.00 total over 12 months
Continue on Vodafone
✓ 5G ready✓ EU roaming included✓ Vodafone Together discounts
AM
Asda Mobile
3.73.7 (17000)
Uses Vodafone network
No contractNo price rise5G
Data
50GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
£7.95/mo
50GB · 12 months
Unlimited calls & texts
No contractNo price rise5G
£95.40 total over 12 months
Continue on Asda Mobile
✓ No contract✓ Free SIM✓ Rewards with Asda shopping
O2
O2 network
O2 PriorityEU roaming
Data
50GB
Calls
Unlimited
Texts
Unlimited
Contract
12 months
12 months
£8.00/mo
50GB · 12 months
Unlimited calls & texts
O2 PriorityEU roaming
£96.00 total over 12 months
Continue on O2
✓ O2 Priority rewards✓ EU roaming included✓ 5G at no extra cost