eSimfly eSIM Data Plans for United Kingdom

eSimfly does not provide a truly unlimited high‑speed data plan for the United Kingdom.
All of its plans labeled “Unlimited” give either 1GB or 3GB of high‑speed data per day; after the allocated data is used, the speed is throttled.

Instead, eSimfly offers fixed‑data eSIMs that may be more cost‑effective for heavy users. For example, a 50GB plan is available for 30 days at about $27.57 USD, and a 30GB plan lasts 30 days for roughly $18.78 USD. These plans deliver a larger total data allowance without daily limits and do not involve speed reduction after a threshold.

eSimfly does not provide United Kingdom eSIM plans that include a phone number or SMS. The company only offers data‑only eSIMs for the UK, which work with high‑speed 4G or 5G networks. Travelers can still use popular VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection for voice and messaging.

eSimfly provides 27 single‑country plans and 55 multi‑country plans for customers traveling to or staying in the United Kingdom. Some of the plans are fixed‑data packages, which deliver a set amount of data for the life of the plan, while others are daily‑cap packages that reset each day so you can use a certain amount of data per day. In general, eSimfly’s UK data offerings range in price from about $1.08 to $211.15 USD, with data caps between 1 GB and 50 GB, and validity periods that span from a single day up to a full year.