O2

Minimum contract:
24 months

Monthly cost:
£25 per month

Allowance:
3GB is roughly enough to do the following:
Hours spent browsing (daily) - 2 hours
Emails sent & received (daily) - 125
Music downloads (per month) - 25
Video downloads (per month) - 45 mins
Software updates / downloads (per month) - 2

500MB Wi-Fi offers you access to over 7500 hotspots in the UK with The Cloud and BT Openzone.
For single (and personal) device use only. Subject to excessive usage policy

This tariff also includes 300 messages to send to any other mobile from your O2 Connection Manager.

Charges outside your allowance:
Any data used above 3GB will be charged at 20p per MB. Excessive Use policy applies to 500MB Wi-Fi. Full terms apply.

Costs when abroad:
Your allowance applies for use in the UK only and we do not recommend that you use mobile broadband abroad to avoid high charges. If you do wish to use mobile broadband abroad, then we recommend that you take our Data Abroad 50MB Bolt On for £50. (You can purchase Data Abroad bolt ons by calling customer services). Data used outside of this allowance (or if you have not purchased a data bolt on) will be charged at £3/MB in the EU or £6/MB outside of the EU. So downloading a 4MB music track could cost you either £12 or £24 depending on where you are in the world.

Minimum contract:
24 months

Monthly cost:
£35 per month

Allowance:
10GB is roughly enough to do the following:
Hours spent browsing (daily) - 6 hours
Emails sent & received (daily) - 375
Music downloads (per month) - 83
Video downloads (per month) - 2.25 hours
Software updates / downloads (per month) - 6

500MB Wi-Fi offers you access to over 7500 hotspots in the UK with The Cloud and BT Openzone.
For single (and personal) device use only. Subject to excessive usage policy.

This tariff also includes 300 messages to send to any other mobile from your O2 Connection Manager.

Charges outside your allowance:
Any data used above 10GB will be charged at 20p per MB. Excessive Use policy applies to 500MB Wi-Fi. Full terms apply.

Costs when abroad:
Your allowance applies for use in the UK only and we do not recommend that you use mobile broadband abroad to avoid high charges. If you do wish to use mobile broadband abroad, then we recommend that you take our Data Abroad 50MB Bolt On for £50. (You can purchase Data Abroad bolt ons by calling customer services). Data used outside of this allowance (or if you have not purchased a data bolt on) will be charged at £3/MB in the EU or £6/MB outside of the EU. So downloading a 4MB music track could cost you either £12 or £24 depending on where you are in the world.