O2 24-month SIM only deals

Yes, in most cases a 24-month O2 SIM only plan offers the lowest monthly price for a given data allowance, because you're committing to the network for two years.

If you're confident in O2's coverage where you live and work, the longer term can mean meaningful savings over the life of the contract.

O2's airtime plans typically include an annual price adjustment, so your monthly cost can rise once a year in line with the terms set out when you sign up.

It's worth reading the contract details so you know what to expect, and comparing the total cost over two years before committing.