eSIM4Travel does not provide a truly unlimited data eSIM for the United Kingdom. The plans that carry the word “Unlimited” in their names give a fixed allowance of 3GB per day and then throttle speed to 1000kbps once that daily limit is reached.
Instead, eSIM4Travel offers fixed data plans that are unthrottled, such as the 50GB/30Days and 20GB/30Days options for the United Kingdom. These plans give a set amount of high‑speed data that must be used within 30 days, and they can be more cost‑effective for most travelers unless a user requires very high data consumption.