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O2 mobile broadband SIM only

O2 mobile broadband SIMs are used for devices as as mifi units. If you need something different, O2 are have a range of other SIM only deals available:

O2 12-month SIM only dealsO2 24-month SIM only dealsO2 unlimited data SIMsCheapest O2 SIM only dealsO2 Tablet SIM onlyO2 5G SIMs
Our top pick
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Unlimited speed
5G+

SIM Only Classic 1GB

Data
1 GB
(Unlimited speed included)
Allowances
0 minutes
0 texts
Contract
1 month
Price
£7per month
Boosted Broadband Speeds for Virgin Media Customers
Get deal
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Unlimited speed
5G+

SIM Only Classic 2GB

Data
2 GB
(Unlimited speed included)
Allowances
0 minutes
100 texts
Contract
24 months
Total cost: £192
Price
£8per month
  • Price becomes £8.75 on 1 April 2026
  • Price becomes £9.50 on 1 April 2027
Get deal

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Unlimited speed
5G+

SIM Only Classic 250GB

Data
250 GB
(Unlimited speed included)
Allowances
0 minutes
100 texts
Contract
24 months
Total cost: £600
Price
£25per month
  • Price becomes £25.75 on 1 April 2026
  • Price becomes £26.50 on 1 April 2027
Get deal
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Unlimited speed
5G+

SIM Only Classic 20GB

Data
20 GB
(Unlimited speed included)
Allowances
0 minutes
100 texts
Contract
24 months
Total cost: £360
Price
£15per month
  • Price becomes £15.75 on 1 April 2026
  • Price becomes £16.50 on 1 April 2027
Get deal
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Unlimited speed
5G+

SIM Only Classic 5GB

Data
5 GB
(Unlimited speed included)
Allowances
0 minutes
100 texts
Contract
24 months
Total cost: £264
Price
£11per month
  • Price becomes £11.75 on 1 April 2026
  • Price becomes £12.50 on 1 April 2027
Get deal
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Unlimited speed
5G+

SIM Only Classic 250GB

Data
250 GB
(Unlimited speed included)
Allowances
0 minutes
100 texts
Contract
12 months
Total cost: £336
Price
£28per month
  • Price becomes £28.75 on 1 April 2026
Get deal
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Unlimited speed
5G+

SIM Only Classic 100GB

Data
100 GB
(Unlimited speed included)
Allowances
0 minutes
100 texts
Contract
24 months
Total cost: £432
Price
£18per month
  • Price becomes £18.75 on 1 April 2026
  • Price becomes £19.50 on 1 April 2027
Get deal
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Unlimited speed
5G+

SIM Only Classic 5GB

Data
5 GB
(Unlimited speed included)
Allowances
0 minutes
100 texts
Contract
12 months
Total cost: £168
Price
£14per month
  • Price becomes £14.75 on 1 April 2026
Get deal
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Unlimited speed
5G+

SIM Only Classic 2GB

Data
2 GB
(Unlimited speed included)
Allowances
0 minutes
100 texts
Contract
12 months
Total cost: £132
Price
£11per month
  • Price becomes £11.75 on 1 April 2026
Get deal
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Unlimited speed
5G+

SIM Only Classic 20GB

Data
20 GB
(Unlimited speed included)
Allowances
0 minutes
100 texts
Contract
12 months
Total cost: £216
Price
£18per month
  • Price becomes £18.75 on 1 April 2026
Get deal
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Unlimited speed
5G+

SIM Only Classic 250GB

Data
250 GB
(Unlimited speed included)
Allowances
0 minutes
100 texts
Contract
1 month
Price
£32per month
Get deal

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