Sim Local does not provide a truly unlimited data eSIM for the United Kingdom. All of its UK‑specific plans list a hard data cap; for example, the United Kingdom Unlimited Data 14 days plan offers 10GB/day and the United Kingdom eSIM – Unlimited Data for 30 days also offers 10GB/day. After the cap is reached, service may be limited to reduced speeds, which is not the same as unrestricted high‑speed data.
Sim Local’s alternatives are fixed data plans with large allowances. The United Kingdom eSIM – 200GB for 30 days gives a single 200GB block of high‑speed data, while the United Kingdom 100 GB + EU Roaming plan supplies 100GB for 15 days. These plans can be more cost‑effective for heavy data users, as the data must be consumed within the set validity period or the data allowance is treated as a one‑time purchase for Pay‑as‑you‑go usage.