Why is an eSIM better than roaming?

Roaming with your UK carrier means paying a daily fee (typically £5-£7/day) to use your existing allowance at reduced speeds. A Jolli travel eSIM gives you local network rates, unrestricted speeds, and much more data for the same or less money. You also keep your UK number active, so there is truly no downside to using an eSIM over roaming.