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Mobile broadband SIM only deals

Mobile broadband SIM only deals are a great way to access the internet on the go. We've found the best mobile broadband SIM only deals available on the market.

O2 mobile broadband SIM onlySmarty mobile broadband SIM onlyVodafone mobile broadband SIM only
Our top pick
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Up to 100Mbps

Red Data SIM Unlimited Plus

Data
Unlimited
(Up to 100Mbps included)
Allowances
0 minutes
0 texts
Contract
24 months
Total cost: £816
Price
£34per month
  • Price becomes £36.50 on 1 April 2027
Inclusive roaming in 52 European destinations
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Up to 100Mbps

Data Plan SIMO Unlimited

Data
Unlimited
(Up to 100Mbps included)
Allowances
0 minutes
0 texts
Contract
24 months
Total cost: £720
Price
£30per month
  • Price becomes £32.50 on 1 April 2027
Get deal

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Up to 100Mbps

Data Plan SIMO Unlimited

Data
Unlimited
(Up to 100Mbps included)
Allowances
0 minutes
0 texts
Contract
1 month
Price
£38per month
Get deal
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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 2026
  • Price becomes £9.50 on 1 April 2027
Get deal
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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 2026
  • Price becomes £16.50 on 1 April 2027
Get deal
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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 2026
  • Price becomes £26.50 on 1 April 2027
Get deal
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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 2026
  • Price becomes £19.50 on 1 April 2027
Get deal
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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 2026
Get deal
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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 2026
  • Price becomes £12.50 on 1 April 2027
Get deal
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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 2026
Get deal
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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 2026
  • Price becomes £31.50 on 1 April 2027
Get deal

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