What could you do with 20GB of data a month? You could browse the internet for 240 hours, stream 4,000 songs, or watch 30 hours of HD video. Whichever way you like to use your data, we can help you get it for less with our discounts on a wide range of 20GB SIM-only plans. There are great savings to be had on plans with Vodafone and Virgin Mobile with 4G and 5G internet available.