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Cheapest O2 SIM only deals

O2 has a variety of SIM only deals available on different contract lengths. If you need something different, O2 are have a range of other SIM only deals available:

O2 30-day SIM only dealsO2 12-month SIM only dealsO2 24-month SIM only dealsO2 Mobile Broadband SIM onlyO2 Tablet SIM onlyO2 5G SIMs
Our top pick
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Unlimited speed
5G+

SIM Only Classic

Data
10 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £84
Price
£7per month
  • Price becomes £9.50 on 1 April 2027
Boosted Broadband Speeds for Virgin Media Customers
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Unlimited speed
5G+

SIM Only Classic

Data
40 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £96
Price
£8per month
  • Price becomes £10.50 on 1 April 2027
Get deal

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logo
Unlimited speed
5G+

SIM Only Classic

Data
50 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £108
Price
£9per month
  • Price becomes £11.50 on 1 April 2027
Get deal
logo
Unlimited speed
5G+

Standard 30 day SIMO

Data
10 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
1 month
Price
£10per month
Get deal
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Unlimited speed
5G+

SIM Only Classic

Data
75 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £120
Price
£10per month
  • Price becomes £12.50 on 1 April 2027
Get deal
logo
Unlimited speed
5G+

SIM Only Classic

Data
100 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £144
Price
£12per month
  • Price becomes £14.50 on 1 April 2027
Get deal
logo
Unlimited speed
5G+

SIM Only Classic

Data
150 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £168
Price
£14per month
  • Price becomes £16.50 on 1 April 2027
Get deal
logo
Unlimited speed
5G+

Standard 30 day SIMO

Data
30 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
1 month
Price
£15per month
Get deal
logo
Unlimited speed
5G+

SIM Only Classic

Data
250 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
12 months
Total cost: £180
Price
£15per month
  • Price becomes £17.50 on 1 April 2027
Get deal
logo
Unlimited speed
5G+

SIM Only Classic

Data
3 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
24 months
Total cost: £432
Price
£18per month
  • Price becomes £20.50 on 1 April 2027
  • Price becomes £23 on 1 April 2028
Get deal
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Unlimited speed
5G+

SIM Only Plus 3GB

Data
3 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
24 months
Total cost: £479.76
Price
£19.99per month
  • Price becomes £22.49 on 1 April 2027
  • Price becomes £24.99 on 1 April 2028
Get deal

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