eSimfly does not provide a truly unlimited data eSIM for Montserrat. The only plan that carries an “Unlimited” name is the Caribbean Islands Unlimited 7 Days plan, which offers 3GB of high‑speed data per day and reduces speed to 1000kbps after that limit is reached.
Travelers looking for high‑capacity options can choose from eSimfly’s fixed data plans for Montserrat, such as the 20GB 30‑day plan or the 25GB 30‑day Vodafone Travel (International) plan. These plans give a set amount of high‑speed data that must be used within the validity period, and they can be more cost‑effective for most users unless a very heavy data consumer is required.