Stellar eSim does not provide a truly unlimited data eSIM for Mexico. All plans that carry the word “Unlimited” in their name give a fixed high‑speed data allowance of 3GB, after which the speed is reduced. Travelers who need more data can choose from the fixed data plans that Stellar eSim offers for Mexico, such as the 50GB plan valid for 30 days or the 100GB plan valid for 60 days. These plans give a larger data allowance and do not throttle speed until the data is exhausted.