eSIM Prime does not provide an unlimited data eSIM for United Kingdom. The available United Kingdom plans have fixed data caps of 20GB or 10GB for a full 30‑day validity period, and a 5GB plan that lasts 15 days.
If a traveler does not need an unlimited data option, these fixed plans can be a cost‑effective choice, especially for moderate usage. Travelers who anticipate very heavy data consumption may want to compare alternative providers that offer unlimited data, but among eSIM Prime’s United Kingdom offerings, only the fixed‑cap plans are available.