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Vietnam eSIM Plans
29 plans · from $3.38
Vietnam has fast-growing network infrastructure. A travel eSIM is a convenient alternative to the registration-heavy counter SIM process at Vietnamese airports. Learn more about how eSIMs work →
→Read our Vietnam eSIM guide — Viettel coverage, Ha Long Bay signal, Sapa trekking, and data tipsChoose a data plan
1 GB
7 days· 0.4 GB per $1
$3.38
★ BEST VALUE
Unlimited
1 days· ∞ GB per $1
$3.59
2 GB
15 days· 0.5 GB per $1
$5.02
3 GB
30 days· 0.6 GB per $1
$6.47
Unlimited
3 days· ∞ GB per $1
$7.71
5 GB
30 days· 0.6 GB per $1
$9.25
Unlimited
5 days· ∞ GB per $1
$11.82
10 GB
30 days· 0.8 GB per $1
$13.88
Unlimited
7 days· ∞ GB per $1
$15.93
Unlimited
10 days· ∞ GB per $1
$22.11
20 GB
30 days· 1.0 GB per $1
$22.11
Unlimited
15 days· ∞ GB per $1
$32.40
50 GB
30 days· 1.2 GB per $1
$47.83
Unlimited
30 days· ∞ GB per $1
$63.29
100 GB
30 days· 1.4 GB per $1
$83.85
Frequently asked questions
Do I need a physical SIM card to use mobile data in Vietnam?
No. A Siima eSIM gives you local data in Vietnam without a physical card. Activate by scanning a QR code in your phone's settings — no shop visit, no passport check required.
How do I activate my eSIM when I arrive in Vietnam?
Install the eSIM before you travel: open Settings → Cellular → Add eSIM and scan the QR code from your Siima confirmation email. Your data activates automatically when you first use mobile data in Vietnam.
How much data do I need for a trip to Vietnam?
For light use (maps, messaging, email) 1–3 GB per week is usually enough. For streaming or heavy navigation, choose a 5 GB+ plan. You can buy additional plans at any time if you run low.
Is eSIM cheaper than international roaming in Vietnam?
Almost always yes. International roaming from most home carriers costs $10–15 per day. Siima eSIM plans for Vietnam start from $3.38 and cover days or weeks of local data.