What is an eSIM and how does it differ from a physical SIM card?

An eSIM (embedded SIM) is a digital SIM that lives in your phone's hardware. You activate it by scanning a QR code instead of inserting a plastic card. Since 2018, most flagship phones (iPhone XS, Pixel 3, Galaxy S20 and later) support eSIM, and many can run an eSIM and a physical SIM at the same time (dual SIM).

Will my phone work with a Vietnam eSIM?

If you have an iPhone XS or newer, Pixel 3 or newer, Samsung Galaxy S20 or newer, or any flagship Android released after 2020, you almost certainly have eSIM support. iPhones sold in mainland China, Hong Kong, and Macau before 2024 do NOT support eSIM — buy a physical SIM elsewhere if your iPhone was bought in those regions. Always confirm at Settings → Cellular → Add eSIM (iOS) or Settings → Connections → SIM manager → Add (Android).

How fast is activation after I pay?

You receive your eSIM QR code by email within 60 seconds of payment confirmation. The eSIM itself activates the moment your phone connects to a Vietnamese mobile network — usually within 1-2 minutes of landing and turning on cellular data.

Can I install the eSIM before I leave home?

Yes — and we recommend you do. Scan the QR code on your phone before flying. The eSIM profile installs immediately but does not consume any data plan time until your phone connects to a Vietnamese carrier on arrival.

Will I keep my home phone number while using the Vietnam eSIM?

Yes. Your home SIM (physical or eSIM) stays active for calls and SMS in roaming or on Wi-Fi. The Vietnam eSIM handles only the data connection. You can configure which line is the default for calls in your phone settings.

What if I don't see Vietnam network signal when I land?

Step 1: turn off airplane mode and toggle cellular data off then on. Step 2: in cellular settings, set the Vietnam eSIM as the default line for data and enable data roaming on that line (yes, even though it's a local plan — required for some phones). Step 3: if still no signal after 5 minutes, manually select the carrier (Settings → Cellular → Network selection → Viettel or Vinaphone). Contact our 24/7 support if needed.

🇻🇳Viettel · Vinaphone · Skyfi

Official Viettel & Vinaphone eSIM for Vietnam

Get connected the moment you land. Scan a QR code, online in 60 seconds. No SIM swap, no waiting at the airport. Plans from $8.

⚡ Shop eSIM Plans How it works

4.9· 628 Google reviews ↗

Direct-from-carrier pricing·Dual-SIM — keep your home number·Vinaphone plans include a real VN number

Why pick simvietnam for your Vietnam trip?

Built for travelers, backed by Vietnam's biggest carriers.

Instant eSIM activation — scan QR, online in 60 seconds
Direct partnership with Viettel & Vinaphone — no reseller markup
Best prices guaranteed — no airport price gouging
Dual-SIM ready — keep your home number, add Vietnam data
24/7 support in English, Korean (한국어), Chinese (中文)

Real, licensed business

Official authorized Viettel & Vinaphone dealer

telebox runs licensed Viettel & Vinaphone stores in Hanoi and Ho Chi Minh City. You buy genuine carrier eSIM — direct from the network, not a grey-market reseller.

4.9· 628 Google reviews ↗

Cửa hàng Viettel TELEBOX — Hà Nội · Định Công — Viettel · Hà Nội · Định Công

Cửa hàng Viettel TELEBOX — Hà Nội · Ocean Park — Viettel · Hà Nội · Ocean Park

Cửa hàng Vinaphone TELEBOX — TP.HCM · Gò Vấp — Vinaphone · TP.HCM · Gò Vấp

Featured plans

Most popular eSIM packages for travelers.

eSIM

Mobifone

Skyfi (Mobifone) 7GB/day · 7 days

Data-only

7GB/day

• 7GB/day high-speed data
• 7-day validity
• Mobifone carrier

$8.00

eSIM

Viettel

Vietnam eSIM — Viettel 5GB/day · 7 days

Data-only

5GB/day

• 5GB/day high-speed data
• 7-day validity
• Viettel carrier

$9.90

eSIM

Vinaphone

Vietnam eSIM — Vinaphone 5GB/day · 30 days

☎ Real VN number · calls & SMS

5GB/day

• 5GB/day high-speed data
• 30-day validity
• Vinaphone carrier

$18.90

How eSIM works

Three steps. No SIM swap, no airport queue.

In one sentence

Pay → receive QR by email in 60s → scan into your phone → land in Vietnam → online instantly. Your home SIM keeps working for calls.

01
Pick a plan
Browse data plans by carrier and duration. Pay securely with PayPal or card.
02
Get your QR code
We email you a QR code within 60 seconds. Scan it on your phone — no shipping needed.
03
Land and go online
Your eSIM activates the moment you connect to a Vietnamese network. Keep your home SIM active for calls.

Compatible with iPhone XS or newer, Pixel 3 or newer, Samsung Galaxy S20 or newer, and most flagship Android phones since 2020.

Official Viettel & Vinaphone eSIM for Vietnam

Why pick simvietnam for your Vietnam trip?

Official authorized Viettel & Vinaphone dealer

Featured plans

How eSIM works

Pick a plan

Get your QR code

Land and go online

From the blog

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iPad + Vietnam eSIM: can you tether a laptop?

Quick answers

What is an eSIM and how does it differ from a physical SIM card?

Will my phone work with a Vietnam eSIM?

How fast is activation after I pay?

Can I install the eSIM before I leave home?

Will I keep my home phone number while using the Vietnam eSIM?

What if I don't see Vietnam network signal when I land?