eSIM for VietnamVietnam with coverage from Hanoi to Ho Chi Minh and Ha Long Bay

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What is the best eSIM for Vietnam?

The best eSIM for Vietnam depends on how much data you need, but for a typical trip eSIM Ahora offers plans from $1.26, activated by QR code in about 30 seconds with no roaming from your home carrier. A 3 GB, 30-day plan costs $3.44. You connect, with top-ups available and nationwide coverage. Compatible with iPhone XS or newer, Samsung Galaxy S21+ and Google Pixel 3+.

Daily unlimited

Full-speed data every day; after the daily cap the speed is reduced.

from $1.43/day

How much full-speed data per day?

Full speed up to 500 MB/day, then 512 Kbps.

By data amount

7 Day Plans

15 Day Plans

30 Day Plans

180 Day Plans

Every eSIM can be installed within 180 days of purchase. Plan validity starts when you first connect.

Works with local carriers in Vietnam

Your eSIM picks between these networks on its own. If you see bars and nothing loads, you can pick one by hand.

Viettel Mobile5GVinaphone5GMobiFone4G

Mobile networks in Vietnam

Your Vietnam eSIM runs on Viettel Mobile, Vinaphone and MobiFone, and your phone picks whichever has the better signal. Other local networks won't carry your data: if you see signal bars and nothing loads, turn off automatic network selection (iPhone: Settings → Cellular → your eSIM → Network Selection; Android: Settings → Network & internet → SIMs → your eSIM) and pick Viettel Mobile, Vinaphone or MobiFone by hand.

Vietnam has three state carriers: Viettel (largest, biggest nationwide coverage including rural and mountain areas), MobiFone (5G in Hanoi and Ho Chi Minh), and Vinaphone (good urban coverage). Plugs are mixed Type A, C, and D (American + European + occasional British), 220V — universal adapter recommended. 4G coverage reaches Hanoi, Ho Chi Minh, Da Nang, Hue, Hoi An, Sapa, Nha Trang, Phu Quoc, and most of the North-South Reunification Express train route (Hà Nội-Sài Gòn, 30+ hours).

Travel tips for Vietnam

Hanoi Noi Bai (HAN), Ho Chi Minh Tan Son Nhat (SGN), and Da Nang (DAD) airports offer free WiFi limited to 30-60 min. The currency is the Vietnamese dong (VND, non-exportable — prices have many zeros, 1 USD ≈ 25,000 VND). Use Vietcombank, BIDV, or Techcombank ATMs — watch for tourist commissions at independent ATMs. Tips are 10% at tourist restaurants. Grab (Asian Uber) is the safest taxi and motorbike option — works in all major cities. Beware airport taxis without meters: use only Mai Linh, Vinasun, or Grab. WhatsApp and Zalo (local app) dominate communication.

Frequently asked questions about Vietnam eSIM

Does the Vietnam eSIM work in Ha Long Bay and traditional junk cruises?

Yes mostly. Viettel has 4G coverage in Ha Long City, Tuan Chau (departure port), and up to 8-12 km offshore in the bay. 1-2 night cruises (Bhaya, Indochina Junk, Paradise) usually stay in coverage zones. In Sung Sot and Thien Cung caves and kayaking in Lan Ha Bay signal drops briefly. Junks offer basic WiFi. For Cat Ba Island coverage returns on disembarkation.

Does the eSIM cover Sapa, Ha Giang, and northern mountain areas?

Yes. Sapa (3,143m, rice terraces, H'mong and Dao ethnic groups) has Viettel 4G coverage in the center and tourist routes. Ha Giang (motorbike loop) has coverage in main towns (Dong Van, Meo Vac) — between stops in deep valleys there are no-signal zones. Cat Ba, Mu Cang Chai, Pu Luong: coverage in towns, weak on trails. For trekking at Fansipan or Y Ty download offline maps.

Does the Vietnam eSIM work crossing to Cambodia, Laos, or China?

No. Our Vietnam eSIM only works in Vietnamese territory. Crossing to Cambodia (Moc Bai-Bavet toward Phnom Penh), Laos (Nam Phao-Cau Treo), or China (Friendship Pass), the eSIM stops working. For Indochina multi-country loops consider a regional Asia eSIM or one per country. Long tourist buses cross border zones without coverage — download maps and translations offline.

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