Name: O2 SIM Only
Brand: O2
Availability: InStock

15 results in 0.008 seconds

Monthly cost

Any15
£5 or less0
£10 or less5
£15 or less8
£20 or less11
£25 or less12
£30 or less13
£30+3

Contract length

1 month5
12 months7
18 months0
24 months3
30 months0
36 months0

Minutes

Unlimited15

Texts

Unlimited15

5G only deals15

Exclusivei
O2 SIM - 12 month contract
More Close
Your monthly cost

Monthly cost for 3 months(from 24 January 2026)

£6.99

Monthly cost for 9 months(from 24 April 2026)

£9.49£2.50 price rise

Average

£8.87

Your cost breakdown

Total contract length

12 months

Total cost of contract

£106.38

Effective monthly cost*

£8.87

*Effective monthly cost is the total cost of ownership divided by the total contract length
O2 benefits

Upgrade anytime with O2 Refresh
Rewards with O2 Priority
5G with all plans
Free EU roaming up to 25GB
99%+ UK coverage
Wi-Fi and VoLTE calling
O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
O2 more information

O2 coverage checker
O2 fair usage
O2 terms & conditions
O2 traffic management
O2 roaming information
Close
12GB data

First 3 months £6.99/month

4-12 months £9.49/month

Average £8.87/month

Contract length 12 months

Total cost of ownership £106.38
Unlimited minutes and texts
eSIM available
5G speeds
See deal

Sold by O2
Exclusivei
O2 SIM - 12 month contract
More Close
Your monthly cost

Monthly cost for 3 months(from 24 January 2026)

£8.00

Monthly cost for 9 months(from 24 April 2026)

£10.50£2.50 price rise

Average

£9.88

Your cost breakdown

Total contract length

12 months

Total cost of contract

£118.50

Effective monthly cost*

£9.88

*Effective monthly cost is the total cost of ownership divided by the total contract length
O2 benefits

Upgrade anytime with O2 Refresh
Rewards with O2 Priority
5G with all plans
Free EU roaming up to 25GB
99%+ UK coverage
Wi-Fi and VoLTE calling
O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
O2 more information

O2 coverage checker
O2 fair usage
O2 terms & conditions
O2 traffic management
O2 roaming information
Close
40GB data

First 3 months £8.00/month

4-12 months £10.50/month

Average £9.88/month

Contract length 12 months

Total cost of ownership £118.50
Unlimited minutes and texts
eSIM available
5G speeds
See deal

Sold by O2
Exclusivei
O2 SIM - 12 month contract
More Close
Your monthly cost

Monthly cost for 3 months(from 24 January 2026)

£9.00

Monthly cost for 9 months(from 24 April 2026)

£11.50£2.50 price rise

Average

£10.88

Your cost breakdown

Total contract length

12 months

Total cost of contract

£130.50

Effective monthly cost*

£10.88

*Effective monthly cost is the total cost of ownership divided by the total contract length
O2 benefits

Upgrade anytime with O2 Refresh
Rewards with O2 Priority
5G with all plans
Free EU roaming up to 25GB
99%+ UK coverage
Wi-Fi and VoLTE calling
O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
O2 more information

O2 coverage checker
O2 fair usage
O2 terms & conditions
O2 traffic management
O2 roaming information
Close
72GB data

First 3 months £9.00/month

4-12 months £11.50/month

Average £10.88/month

Contract length 12 months

Total cost of ownership £130.50
Unlimited minutes and texts
eSIM available
5G speeds
See deal

Sold by O2
Exclusivei
O2 SIM - 12 month contract
More Close
Your monthly cost

Monthly cost for 3 months(from 24 January 2026)

£10.00

Monthly cost for 9 months(from 24 April 2026)

£12.50£2.50 price rise

Average

£11.88

Your cost breakdown

Total contract length

12 months

Total cost of contract

£142.50

Effective monthly cost*

£11.88

*Effective monthly cost is the total cost of ownership divided by the total contract length
O2 benefits

Upgrade anytime with O2 Refresh
Rewards with O2 Priority
5G with all plans
Free EU roaming up to 25GB
99%+ UK coverage
Wi-Fi and VoLTE calling
O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
O2 more information

O2 coverage checker
O2 fair usage
O2 terms & conditions
O2 traffic management
O2 roaming information
Close
100GB data

First 3 months £10.00/month

4-12 months £12.50/month

Average £11.88/month

Contract length 12 months

Total cost of ownership £142.50
Unlimited minutes and texts
eSIM available
5G speeds
See deal

Sold by O2
O2 SIM - 30 day rolling
More Close
Your monthly cost

Monthly cost for 1 month(no price rises)

£10.00
O2 benefits

Upgrade anytime with O2 Refresh
Rewards with O2 Priority
5G with all plans
Free EU roaming up to 25GB
99%+ UK coverage
Wi-Fi and VoLTE calling
O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
O2 more information

O2 coverage checker
O2 fair usage
O2 terms & conditions
O2 traffic management
O2 roaming information
Close
10GB data

Monthly cost £10.00/month

Contract length No contract
No price rises
Unlimited minutes and texts
5G speeds
See deal

Sold by O2
Exclusivei
O2 SIM - 12 month contract
More Close
Your monthly cost

Monthly cost for 3 months(from 24 January 2026)

£14.00

Monthly cost for 9 months(from 24 April 2026)

£16.50£2.50 price rise

Average

£15.88

Your cost breakdown

Total contract length

12 months

Total cost of contract

£190.50

Effective monthly cost*

£15.88

*Effective monthly cost is the total cost of ownership divided by the total contract length
O2 benefits

Upgrade anytime with O2 Refresh
Rewards with O2 Priority
5G with all plans
Free EU roaming up to 25GB
99%+ UK coverage
Wi-Fi and VoLTE calling
O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
O2 more information

O2 coverage checker
O2 fair usage
O2 terms & conditions
O2 traffic management
O2 roaming information
Close
175GB data

First 3 months £14.00/month

4-12 months £16.50/month

Average £15.88/month

Contract length 12 months

Total cost of ownership £190.50
Unlimited minutes and texts
eSIM available
5G speeds
See deal

Sold by O2
O2 SIM - 24 month contract
More Close
Your monthly cost

Monthly cost for 3 months(from 24 January 2026)

£15.00

Monthly cost for 12 months(from 24 April 2026)

£17.50£2.50 price rise

Monthly cost for 9 months(from 24 April 2027)

£20.00£2.50 price rise

Average

£18.13

Your cost breakdown

Total contract length

24 months

Total cost of contract

£435.00

Effective monthly cost*

£18.13

*Effective monthly cost is the total cost of ownership divided by the total contract length
O2 benefits

Upgrade anytime with O2 Refresh
Rewards with O2 Priority
5G with all plans
Free EU roaming up to 25GB
99%+ UK coverage
Wi-Fi and VoLTE calling
O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
O2 more information

O2 coverage checker
O2 fair usage
O2 terms & conditions
O2 traffic management
O2 roaming information
Close
12GB data

First 3 months £15.00/month

4-15 months £17.50/month

16-24 months £20.00/month

Average £18.13/month

Contract length 24 months

Total cost of ownership £435.00
Unlimited minutes and texts
eSIM available
5G speeds
See deal

Sold by O2
O2 SIM - 30 day rolling
More Close
Your monthly cost

Monthly cost for 1 month(no price rises)

£15.00
O2 benefits

Upgrade anytime with O2 Refresh
Rewards with O2 Priority
5G with all plans
Free EU roaming up to 25GB
99%+ UK coverage
Wi-Fi and VoLTE calling
O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
O2 more information

O2 coverage checker
O2 fair usage
O2 terms & conditions
O2 traffic management
O2 roaming information
Close
30GB data

Monthly cost £15.00/month

Contract length No contract
No price rises
Unlimited minutes and texts
5G speeds
See deal

Sold by O2
Exclusivei
O2 SIM - 12 month contract
More Close
Your monthly cost

Monthly cost for 3 months(from 24 January 2026)

£16.00

Monthly cost for 9 months(from 24 April 2026)

£18.50£2.50 price rise

Average

£17.88

Your cost breakdown

Total contract length

12 months

Total cost of contract

£214.50

Effective monthly cost*

£17.88

*Effective monthly cost is the total cost of ownership divided by the total contract length
O2 benefits

Upgrade anytime with O2 Refresh
Rewards with O2 Priority
5G with all plans
Free EU roaming up to 25GB
99%+ UK coverage
Wi-Fi and VoLTE calling
O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
O2 more information

O2 coverage checker
O2 fair usage
O2 terms & conditions
O2 traffic management
O2 roaming information
Close
300GB data

First 3 months £16.00/month

4-12 months £18.50/month

Average £17.88/month

Contract length 12 months

Total cost of ownership £214.50
Unlimited minutes and texts
eSIM available
5G speeds
See deal

Sold by O2
O2 SIM - 24 month contract
More Close
Your monthly cost

Monthly cost for 3 months(from 24 January 2026)

£17.99

Monthly cost for 12 months(from 24 April 2026)

£20.49£2.50 price rise

Monthly cost for 9 months(from 24 April 2027)

£22.99£2.50 price rise

Average

£21.12

Your cost breakdown

Total contract length

24 months

Total cost of contract

£506.76

Effective monthly cost*

£21.12

*Effective monthly cost is the total cost of ownership divided by the total contract length
O2 benefits

Upgrade anytime with O2 Refresh
Rewards with O2 Priority
5G with all plans
Free EU roaming up to 25GB
99%+ UK coverage
Wi-Fi and VoLTE calling
O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
O2 more information

O2 coverage checker
O2 fair usage
O2 terms & conditions
O2 traffic management
O2 roaming information
Close
100GB data

First 3 months £17.99/month

4-15 months £20.49/month

16-24 months £22.99/month

Average £21.12/month

Contract length 24 months

Total cost of ownership £506.76
Unlimited minutes and texts
eSIM available
5G speeds
See deal

Sold by O2
O2 SIM - 30 day rolling
More Close
Your monthly cost

Monthly cost for 1 month(no price rises)

£20.00
O2 benefits

Upgrade anytime with O2 Refresh
Rewards with O2 Priority
5G with all plans
Free EU roaming up to 25GB
99%+ UK coverage
Wi-Fi and VoLTE calling
O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
O2 more information

O2 coverage checker
O2 fair usage
O2 terms & conditions
O2 traffic management
O2 roaming information
Close
50GB data

Monthly cost £20.00/month

Contract length No contract
No price rises
Unlimited minutes and texts
5G speeds
See deal

Sold by O2
O2 SIM - 24 month contract
More Close
Your monthly cost

Monthly cost for 3 months(from 24 January 2026)

£23.99

Monthly cost for 12 months(from 24 April 2026)

£26.49£2.50 price rise

Monthly cost for 9 months(from 24 April 2027)

£28.99£2.50 price rise

Average

£27.12

Your cost breakdown

Total contract length

24 months

Total cost of contract

£650.76

Effective monthly cost*

£27.12

*Effective monthly cost is the total cost of ownership divided by the total contract length
O2 benefits

Upgrade anytime with O2 Refresh
Rewards with O2 Priority
5G with all plans
Free EU roaming up to 25GB
99%+ UK coverage
Wi-Fi and VoLTE calling
O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
O2 more information

O2 coverage checker
O2 fair usage
O2 terms & conditions
O2 traffic management
O2 roaming information
Close
Unlimited data

First 3 months £23.99/month

4-15 months £26.49/month

16-24 months £28.99/month

Average £27.12/month

Contract length 24 months

Total cost of ownership £650.76
Unlimited minutes and texts
eSIM available
5G speeds
See deal

Sold by O2
O2 SIM - 30 day rolling
More Close
Your monthly cost

Monthly cost for 1 month(no price rises)

£30.00
O2 benefits

Upgrade anytime with O2 Refresh
Rewards with O2 Priority
5G with all plans
Free EU roaming up to 25GB
99%+ UK coverage
Wi-Fi and VoLTE calling
O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
O2 more information

O2 coverage checker
O2 fair usage
O2 terms & conditions
O2 traffic management
O2 roaming information
Close
150GB data

Monthly cost £30.00/month

Contract length No contract
No price rises
Unlimited minutes and texts
5G speeds
See deal

Sold by O2
O2 SIM - 12 month contract
More Close
Your monthly cost

Monthly cost for 3 months(from 24 January 2026)

£35.00

Monthly cost for 9 months(from 24 April 2026)

£37.50£2.50 price rise

Average

£36.88

Your cost breakdown

Total contract length

12 months

Total cost of contract

£442.50

Effective monthly cost*

£36.88

*Effective monthly cost is the total cost of ownership divided by the total contract length
O2 benefits

Upgrade anytime with O2 Refresh
Rewards with O2 Priority
5G with all plans
Free EU roaming up to 25GB
99%+ UK coverage
Wi-Fi and VoLTE calling
O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
O2 more information

O2 coverage checker
O2 fair usage
O2 terms & conditions
O2 traffic management
O2 roaming information
Close
Unlimited data

First 3 months £35.00/month

4-12 months £37.50/month

Average £36.88/month

Contract length 12 months

Total cost of ownership £442.50
Unlimited minutes and texts
eSIM available
5G speeds
See deal

Sold by O2
O2 SIM - 30 day rolling
More Close
Your monthly cost

Monthly cost for 1 month(no price rises)

£38.00
O2 benefits

Upgrade anytime with O2 Refresh
Rewards with O2 Priority
5G with all plans
Free EU roaming up to 25GB
99%+ UK coverage
Wi-Fi and VoLTE calling
O2 complaints O2 received an average of 3 complaints per 100,000 customers between January 2025 and March 2025 in Ofcom's pay monthly mobile complaints
O2 more information

O2 coverage checker
O2 fair usage
O2 terms & conditions
O2 traffic management
O2 roaming information
Close
Unlimited data

Monthly cost £38.00/month

Contract length No contract
No price rises
Unlimited minutes and texts
eSIM available
5G speeds
See deal

Sold by O2

You've viewed 15 of 15 deals

Deals last updated: 7 hours 12 minutes ago

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Prices shown can change at any time, and may differ on a provider’s own website or app.
Providers can increase the cost of your contract in line with RPI (inflation). If you believe an increase is either excessive, unfair or wasn't stated clearly in your contract, you may be able to exit your contract without penalty. For more information, see Ofcom’s guide on unexpected mid-contract price rises. You can also make a complaint through Ofcom.
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