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12-month SIM only deals

12-month SIM only deals are a great way to save money if you don't need a new phone. We've found the best 12-month SIM only deals available on the market.

O2 12-month SIM only dealsVodafone 12-month SIM only dealsThree 12-month SIM only dealsLebara 12-month SIM only dealsSky Mobile 12-month SIM only dealsID Mobile 12-month SIM only dealsTesco Mobile 12-month SIM only dealsAsda Mobile 12-month SIM only deals
Our top pick
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Unlimited speed

Unlimited Max SIM Only

Data
Unlimited
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £456
Price
£38per month
  • Price becomes £40.50 on 1 April 2026
Our best speeds, uncapped
Get deal
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Unlimited speed
5G+

Red SIM Only 20GB Xtra Global Roam

Data
20 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £372
Price
£31per month
  • Price becomes £33.50 on 1 April 2026
Get deal

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Unlimited speed
5G+

Unlimited Max SIM Only Xtra Euro Roam

Data
Unlimited
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £540
Price
£45per month
  • Price becomes £47.50 on 1 April 2026
Get deal
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Unlimited speed
5G+

Red SIM Only 5GB Xtra Euro Roam

Data
5 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £312
Price
£26per month
  • Price becomes £28.50 on 1 April 2026
Get deal
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Unlimited speed
5G+

Red SIM Only 20GB Xtra Euro Roam

Data
20 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £336
Price
£28per month
  • Price becomes £30.50 on 1 April 2026
Get deal
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Basics SIM Only

Data
100 GB
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £144
Price
£12per month
  • Price becomes £13.50 on 1 April 2026
Get deal
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Unlimited speed
5G+

Red SIM Only 5GB Xtra Global Roam

Data
5 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £348
Price
£29per month
  • Price becomes £31.50 on 1 April 2026
Get deal
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Unlimited speed
5G+

Red SIM Only 1GB Xtra Euro Roam

Data
1 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £276
Price
£23per month
  • Price becomes £25.50 on 1 April 2026
Get deal
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Unlimited speed
5G+

Red SIM Only 1GB Xtra Global Roam

Data
1 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £312
Price
£26per month
  • Price becomes £28.50 on 1 April 2026
Get deal
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Up to 100Mbps

Basics SIM Only

Data
11 GB
(Up to 100Mbps included)
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £84
Price
£7per month
  • Price becomes £8.50 on 1 April 2026
Get deal
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Up to 100Mbps

Basics SIM Only

Data
60 GB
(Up to 100Mbps included)
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £108
Price
£9per month
  • Price becomes £10.50 on 1 April 2026
Get deal

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