mobineX does not provide a truly unlimited data eSIM for Cayman Islands. The only plan with the word “Unlimited” in its name, Unlimited Standard, gives just 1 GB of high‑speed LTE data; after that limit the speed drops to 128 kbps. Travelers who need more data must choose from one of mobineX’s fixed‑cap plans, such as 100 GB for 60 days, 50 GB for 30 days, 30 GB for 30 days, 15 GB for 30 days, or 5 GB for 7 days, all of which cover the Cayman Islands and surrounding regions. Fixed data plans can be more cost‑effective unless a user expects to consume an extremely high amount of data.