eSIM.sm does not provide an unlimited data eSIM for the United Kingdom. All of its UK‑specific plans have a fixed data cap, with the highest offering a 50GB allowance for 60 days.
Customers looking for a large data allowance can choose from eSIM.sm’s fixed data plans. For example, the 50GB 60‑day plan costs $59.90 USD and the 20GB 30‑day plan costs $26.60 USD. These plans include tethering and are available exclusively for coverage within the United Kingdom. Selecting a fixed data plan is typically more cost‑effective unless a user requires extremely high data usage beyond the available caps.