TailSim eSIM Data Plans for United Kingdom

TailSim does not provide a truly unlimited data eSIM for the United Kingdom. All of its plans that are labeled “Unlimited” give a maximum of 3GB per day; after that limit the speed is throttled to 1000kbps.
Travelers looking for higher data allowances can choose from fixed‑data plans, such as the 50 GB plan for 30 days at $54.99 USD or the 20 GB plan for 30 days at $26.99 USD. These plans offer a set amount of high‑speed data that must be used within the 30‑day validity period.

TailSim does not provide United Kingdom eSIM plans that include a phone number or SMS capability. The available UK plans are data‑only, so you will not receive inbound or outbound voice or text service. Travelers who need to make calls or send messages can usually do so via VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, but because some destinations may restrict access to these apps, users should check that the services they rely on are available in the United Kingdom before purchasing.

TailSim offers 14 single‑country data plans for the United Kingdom and an equal number of multi‑country plans that include the UK. The plans range in price from approximately $3.99 to $85.50 and in data allowance from 1 GB to 50 GB, with validity periods of 3 to 30 days. Some plans use a fixed data amount, while others impose a daily data cap, allowing customers to choose the structure that best fits their usage pattern.