EE Swappable Benefits are additional perks included in their various phone and data plans. With these features, you can get free access to several enjoyable entertainment contents without worrying about your data usage.
After you choose a compatible plan, you would have the option to select among their excellent benefits.
"But once your needs change, EE gives you the freedom to swap it for any of their alternative perks".
For instance, you can activate the benefit that would allow you to roam internationally without added charges before you go on your trip.
Once you are back in the United Kingdom, you can swap it again for another benefit.