4S eSIM eSIM Data Plans for United Kingdom

4S eSIM does not provide a truly unlimited data eSIM for the United Kingdom. All of the UK‑specific plans sold by 4S eSIM are fixed‑data plans, meaning each plan gives a set amount of high‑speed data that must be used within a specified validity period. For example, the “United Kingdom 50GB – 5 Days” plan offers 50 GB of data for five days, and the “United Kingdom 20GB Unlimited – 5 Days” plan gives 20 GB of data to be used in five days. These plans have clear data caps; after the allowance is reached, speed is reduced to 1000 kbps. While some plans carry “Unlimited” in their names, the name does not indicate a truly unlimited data entitlement, but rather a fixed data allocation with throttled speed thereafter.

4S eSIM does not offer any plan for the United Kingdom that includes a phone number or SMS capability. Only data‑only eSIM plans are available from this provider for that destination. Travelers who need voice or text services can still use popular VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, but it is advisable to confirm that these services are accessible in the United Kingdom before purchasing a plan, as some destinations may block or restrict certain apps or VoIP services.

4S eSIM provides 54 single‑country plans and 108 multi‑country plans for the United Kingdom. The available options range in price from about $1.43 to $195.83 and in data capacity from 714 MB to 50 GB over validity periods of 1 to 365 days. Some plans use a daily data cap, limiting the amount of data that can be used each day, while others use a fixed data cap, giving a total amount of data usable over the whole validity period.