Roamic does not provide a truly unlimited data eSIM for Guyana. The plans branded as “Unlimited” actually include a fixed amount of high‑speed data—each of those plans supplies 3GB per day and, after that portion is consumed, the speed is reduced to 1000 kbps until the validity period expires. Because of the fixed cap, once the high‑speed data is used up the connection slows and the plan ends after the stated number of days.
If you need more data without the speed reduction, Roamic offers fixed‑data plans such as the 20GB/30 days plan for $98.43 USD, the 10GB/30 days plan for $52.57 USD, the 5GB/21 days plan for $29.07 USD and the 3GB/15 days plan for $17.89 USD. These plans give you a set amount of data to use at normal speeds for the specified validity period and can be a more cost‑effective choice for travelers who require a predictable data allowance.