Best eSIM for Americans visiting Vietnam — complete guide

28 July 2026·Proost eSIM

Vietnam is one of Southeast Asia's most rewarding destinations for American travellers

Hanoi's Old Quarter, Ho Chi Minh City's energy, Ha Long Bay, Hoi An's lantern streets — Vietnam delivers at every turn. Navigating it all is much easier with reliable data.

AT&T and Verizon roaming in Vietnam costs $10–$15 per day. A Proost Vietnam eSIM is a fraction of that.

Coverage

Vietnam has excellent 4G in cities and tourist areas. Hanoi, HCMC, Da Nang, Hoi An, Hue, Nha Trang and Ha Long all have strong signal. Remote highland areas like Sapa may be slower.

How much data?

3GB — one week, light use

5GB — two weeks, regular maps and social media

10GB — longer trips or heavy users

The AUD advantage

$10 AUD costs approximately $6.50 USD — so you're paying meaningfully less than the listed price in dollar terms.

Setting up

Purchase your Vietnam eSIM on Proost

QR code arrives instantly

Scan via Settings → Cellular → Add eSIM

Connects when you land at Noi Bai (Hanoi) or Tan Son Nhat (HCMC)

Tips for US visitors

Grab works throughout Vietnam — much easier than motorbike taxis

Download offline Google Maps for each city

VPNs are useful for accessing US streaming services

Cash still widely used — Wise card minimises conversion fees

Get your Vietnam eSIM

Instant QR code delivery · 4G and 5G speeds · No throttling

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