Saily does not provide a truly unlimited high‑speed data eSIM for the United Kingdom. All of the plans listed for the UK carry a specific data allowance, such as 5 GB per day or a fixed total amount, and additional data beyond the limit is throttled to 1024 kbps. Because the name “UNLIMITED” in Saily’s plan titles refers only to the flexibility of the duration and not to an unrestricted data allowance, travelers seeking truly unlimited use will not find a corresponding option.
Travelers who need more data can choose from Saily’s fixed‑data plans. For example, the United Kingdom 10 GB 30‑day plan is priced at $19.99 USD, while the United Kingdom 20 GB 30‑day plan costs $31.99 USD. For longer trips, a 50 GB 90‑day plan is also available. These fixed‑data options are generally more cost‑effective for users who consume a large amount of data during their stay in the United Kingdom.