ZenSim eSIM Data Plans for United Kingdom

ZenSim does not provide a truly unlimited high‑speed data eSIM for the United Kingdom. All of its “Unlimited” named plans – such as the UK Unlimited STANDARD – cap high‑speed data at 3 GB per day; consequently, after the daily limit is reached the speed would be throttled, although the exact reduced rate is not listed. Travelers who need more data than a single day can choose from ZenSim’s fixed‑quota plans instead. For example, the UK 40 GB – 30 days plan offers a 40 GB data allowance at $51.00 USD, and the UK 20 GB – 10 days plan provides 20 GB at $26.00 USD. These fixed‑data options may be more cost‑effective for users who require extended high‑speed connectivity throughout their stay.

ZenSim does not offer United Kingdom eSIM plans that include a local phone number or SMS capability. All United Kingdom eSIM plans from ZenSim are data‑only and do not support inbound or outbound calls or text messaging. Travelers can still use VoIP and messaging apps such as WhatsApp, Telegram, or iMessage over the data connection.

ZenSim currently provides nine single‑country data plans for the United Kingdom and another nine that cover multiple countries. Plans range from $13 to $57, with data limits between 3 GB and 40 GB, and validity from 10 to 30 days. Some plans offer a daily data cap that resets each day, while others provide a fixed data amount for the entire validity period.