⚡ Quick Answer
The regional plans do — but the word international on the box does not guarantee it. Holafly sells a Southeast Asia plan covering seven countries including Vietnam, and an Asia plan covering sixteen. Plenty of providers sell country-by-country only, so check the product page for the word regional before you buy.
| Holafly plan | Covers |
|---|
| Holafly Southeast Asia | Cambodia, Indonesia, Laos, Malaysia, Singapore, Thailand, Vietnam |
| Holafly Asia | 16 countries |
| Holafly Vietnam | 1 country — same price as both plans above |
Here is the part worth knowing: Holafly charges exactly the same for its Vietnam plan, its seven-country Southeast Asia plan and its sixteen-country Asia plan — $27.50 for seven days, $73.90 for thirty. So if you have already settled on Holafly, never take the Vietnam-only version. The regional one costs the same and covers six more countries you might end up in.
✅ Where regional genuinely wins. Three or more countries. One install at home, then the eSIM finds a partner network in each country by itself — no arrivals-hall errand repeated three times.
Southeast Asia on one purchase: Cambodia, Indonesia, Laos, Malaysia, Singapore, Thailand and Vietnam. Code ENTRYVN takes 5% off.
See Holafly’s regional plans →
⚠ Where it does not. Vietnam alone. Thirty days uncapped is $73.90 on a regional plan against $17 for a local Vietnamese eSIM. For one or two countries, buying locally in each is usually still cheaper — often by a lot.
Do I have to do anything at each border?
On a regional plan, no. It switches to a partner network in the new country by itself. That automatic handover is the main thing you are buying.
Which brand has the most customers?
By verified review volume, Holafly — 4.6 on Trustpilot from over 113,000 reviews, the largest review base in travel eSIM. That measures service experience, not price: for Vietnam alone they are still four times our cost.
Can I trust “best eSIM 2026” articles?
Read who published them. A great many of the top results are written by eSIM sellers comparing themselves with rivals, or earn a commission on whichever provider wins. Prices from a provider’s own product page are worth more than any ranking.
Coverage and prices read directly from airalo.com and esim.holafly.com on 29 September 2026, in USD, and subject to change. Holafly link above is an affiliate link. Code ENTRYVN takes 5% off for you.
