ZenSim eSIM Data Plans for United Kingdom

ZenSim does not offer a truly unlimited high‑speed data plan for the United Kingdom. The plans that carry the “Unlimited” name provide a fixed daily allowance of 3 GB for five, fifteen, or thirty days, after which the speed is reduced to 1000 kbps. Because the plan includes a hard data cap, it is not considered unlimited data. For travelers who need a larger data pool without speed throttling, ZenSim offers fixed data plans such as the UK 40 GB plan valid for 30 days or the UK 20 GB plan valid for 15 days, which give larger allowances of high‑speed data for a set period.

ZenSim does not provide any United Kingdom eSIM plan that includes a phone number or SMS capability. All United Kingdom eSIM plans from ZenSim are data‑only. Travelers wanting voice or messaging can use VoIP services such as WhatsApp, Telegram or iMessage over the data connection, but some destinations may block or restrict these services, so users should confirm access before purchasing.

ZenSim provides 13 single‑country data plans and 18 multi‑country data plans for the United Kingdom. The available plans span a price range from $5.00 to $119.00 and offer data caps between 1 GB and 40 GB. ZenSim offers both fixed data amount plans, which give a set amount of data for the entire validity period, and daily data cap plans, which limit the amount of data that can be used each day.