nextSIM does not provide a true unlimited data eSIM for Mexico. All of its plans listed for Mexico have a specified data allowance, such as 1 GB per day or 2 GB per day, and the feature name “Unlimited” only indicates that the speed will be throttled to a lower rate once the data cap is reached. For instance, the eSIM Unlimited Plus 10 Days Mexico plan supplies 2 GB/day, and after the 2 GB is used the connection slows to 2000 kbps, while the eSIM GLOBAL 50GB 30Days Premium plan offers 50 GB for 30 days with no speed reduction.
If a traveler wants more data than the smaller daily caps provide, choosing one of the fixed‑data plans is a more cost‑effective option. The eSIM Unlimited Plus 10 Days Mexico plan gives a total of 20 GB before throttling, and the eSIM GLOBAL 40GB 30Days Premium plan delivers 40 GB for 30 days across Mexico and many other countries, both without requiring the user to manage daily data limits.