Maya Mobile does not offer a true unlimited data eSIM for Vietnam. All of its plans are fixed data bundles that provide 5GB of high‑speed data per day for the selected validity period; after that amount is used, the speed is reduced to 3Mbps. For travelers who need high‑volume data, fixed data plans such as the 7 days Unlimited Global Data plan (5GB/day for 7 days) or the 30 days Unlimited Global Data plan (5GB/day for 30 days) may be suitable, as they deliver large data allowances while keeping costs predictable.