
ByteSIM offers seamless eSIM solutions for global travelers, covering 200+ destinations. With a 4.8 rating and 24/7 customer support, ByteSIM prioritize user experience. Stay connected effortlessly with ByteSIM's reliable eSIM service anytime, anywhere.
Data plans for this provider are automatically updated. While we strive to keep the information accurate, we cannot guarantee its completeness or accuracy. Please confirm all details on the provider's official website or app before purchasing.
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“Bought their Vietnam eSIM with Viettel number. Was extremely good. I believe it's exactly the same as prepaid Viettel SIM product available to tourists at the airport, just in eSIM form. Excellent Ping (below 50ms), fast speeds. Solid choice.”
“Super easy to purchase and activate eSim. Works great. Very affordable.”
ByteSIM’s plans that include “Unlimited” in the name do not provide truly unlimited high‑speed data for Vietnam. Each of those options only allows 1GB of high‑speed data per day; once that daily cap is reached, the connection speed is reduced to 10240kbps. The plans are therefore fixed‑cap plans with a reduced‑speed fallback rather than genuine unlimited data.
If a traveler prefers a larger data allowance without such a daily cap, ByteSIM offers fixed data plans such as the 50GB packages (for example, 50GB for 10 days costs $43.90 USD). These plans give full high‑speed access up to the total data limit and then cease service, which can be more cost effective for those who consume more data than the daily 1GB allotment.
ByteSIM does not provide Vietnam eSIMs that include a local phone number or SMS capability; only data‑only plans are offered. Travelers can rely on VoIP applications such as WhatsApp, Telegram, and iMessage to make calls and send text messages over the data connection, removing the need for a local phone number or SMS service.
ByteSIM currently offers 89 single coverage data plans specifically for Vietnam. These plans range in price from approximately $2.90 to $69.90 and provide data allowances from 500MB to 50GB. They also offer a variety of plans with differing validity periods, from 1 to 30 days. Within these options, 56 plans feature a daily data cap, while 33 plans offer a fixed data allowance. No multi-country plans covering Vietnam are currently available from this provider.
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