Simsima eSIM Data Plans for Vietnam

Simsima does not provide any truly unlimited data eSIM for Vietnam. All available plans list a finite data cap, such as 3GB per day, 100GB for a 180‑day period, or 50GB for 7, 15, or 30 days. Plans that carry the word “Unlimited” in their name actually deliver 3GB per day and throttle speed to 1 Mbps afterward, so they are not unlimited in the usual sense.

Travelers who need large data allowances can opt for fixed data plans. For example, the 100GB plan is valid for 180 days, and the 50GB plans are available for 7, 15, or 30 days. These fixed‑data options are usually more cost‑effective for most users.

Simsima does not provide eSIM plans with a phone number or SMS capability for Vietnam; all of its offerings for the country are data‑only. Travelers who need voice or text services can use VoIP applications such as WhatsApp, Telegram and iMessage over the data connection, but it is advisable to confirm that these services are accessible in Vietnam before purchasing, as some destinations may restrict or block certain apps.

Simsima offers 15 single‑country plans and 22 multi‑country plans for Vietnam. The plans range in price from about $1.50 to $87.22 and provide data caps between 100 MB and 100 GB. Among the offerings, 10 plans feature a daily data cap, limiting the amount of data that can be used each day, while 27 plans have a fixed data cap that applies to the entire validity period.