You might find our USA site more useful

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
logo
Unlimited speed
5G+

SIM Only Mini Unlimited

Data
Unlimited
(Unlimited speed included)
Allowances
0 minutes
100 texts
Contract
24 months
Total cost: £720
Price
£30per month
  • Price becomes £30.75 on 1 April 2027
  • Price becomes £31.50 on 1 April 2028
Recommend a Friend and Earn Rewards
Get deal
logo
Unlimited speed
5G+

SIM Only Mini 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 2027
  • Price becomes £26.50 on 1 April 2028
Get deal

UNLOCK EXCLUSIVE SAVINGS & DEALS

Join our savvy community and get insider access to the best broadband, power, mobile, and shopping deals – plus expert tips and money-saving guides delivered straight to your inbox.

logo
Unlimited speed
5G+

SIM Only Mini 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 2027
  • Price becomes £9.50 on 1 April 2028
Get deal
logo
Unlimited speed
5G+

SIM Only Mini 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 2027
  • Price becomes £16.50 on 1 April 2028
Get deal
logo
Unlimited speed
5G+

SIM Only Mini 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 2027
  • Price becomes £19.50 on 1 April 2028
Get deal
logo
Unlimited speed
5G+

SIM Only Mini 100GB

Data
100 GB
(Unlimited speed included)
Allowances
0 minutes
100 texts
Contract
12 months
Total cost: £252
Price
£21per month
  • Price becomes £21.75 on 1 April 2027
Get deal
logo
Unlimited speed
5G+

SIM Only Mini 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 2027
  • Price becomes £12.50 on 1 April 2028
Get deal
logo
Unlimited speed
5G+

SIM Only Mini 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 2027
Get deal
logo
Unlimited speed
5G+

SIM Only Mini 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 2027
Get deal
logo
Unlimited speed
5G+

SIM Only Mini 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 2027
Get deal
logo
Unlimited speed
5G+

SIM Only Mini 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 2027
Get deal

Showing 1 to 10 of 19 results