No, MeSIM does not provide a truly unlimited data eSIM for Guam. All MeSIM plans that cover Guam list a specific daily data allowance—such as 500MB/day, 1GB/day, or 2GB/day—rather than a hard unlimited cap. The word “unlimited” in the plan names refers to the validity period, not to the amount of data that can be used.
Travelers who need a large amount of high‑speed data can choose from MeSIM’s fixed data plans. For example, the 30‑day unlimited eSIM (2GB/day fast) and the 30‑day unlimited eSIM (500MB/day) give a set daily allowance and then throttle to 384 kbps after the limit is reached. These fixed plans are often more cost‑effective for typical usage unless a user requires very heavy data consumption.