Up until now, those with an iPhone 5 or compatible iPad who wanted 4G service in the UK could only get it from one provider: EE. But thankfully that will change at the end of the month, as O2 and Vodafone have announced they will be offering 4G service in the UK come August 29.
On O2, 4G will at first only be available in London, Leeds and Bradford, though the company plans additional city rollouts by the end of the year. O2 hasn't announced all of its pricing plans yet, but 4G plans are rumored to start around £26 a month. O2's 4G network actually won't work with the current iPhone 5 as it runs on the 800 MHz spectrum, which Apple's handset does not support, but the CEO of O2's parent company told the BBC that he would be shocked if Apple's next iPhone does not support this spectrum.
As for Vodafone, its 4G service will run on all iPhone 5's and 4G-compatible iPads. For £26 a month, users who already own a 4G device will get unlimited voice and text with 2 GB of data. It will cost users £36 a month to get a device with their 4G plan. That plan would offer unlimited voice and text with 500 MB of data.
Once the 4G rollout of O2 and Vodafone are complete, the next major UK carrier to offer 4G service will be Three, which it says it will rollout by the end of the year.