Allowances on mobile Wi-Fi range from a steady 4GB per month to unlimited data ... Consider how long you’ll use your MiFi – while 24-month contracts will have a lower monthly cost, it’ll work out as ...

However, you still have to pay a £100 one-off upfront charge for the MiFi router itself. By comparison, those wanting a 12-month contract for the same service will pay £33 per month and £150 upfront, ...