No, nextSIM does not supply a true unlimited data eSIM for the United Kingdom. All plans that include “Unlimited” in their name actually provide a fixed amount of high‑speed data – typically 1 GB per day – after which the connection speed drops to 512 kbps or 2000 kbps. Because of that cap, the plans cannot be classified as offering unlimited, high‑speed data.
Travelers who need more data can choose one of nextSIM’s fixed‑data options. For example, the 100 GB eSIM plan lasts 30 days at $78.65 USD, or the 50 GB eSIM plan lasts 30 days at $40.33 USD (the 50 GB 30‑day plan is also available under other branding at $48.60 USD). These fixed‑data plans provide a larger data allowance without the post‑cap speed reduction and can be more cost‑effective for heavy users.