eSIM Vietnam

eSIM Vietnam: prepaid data on Viettel, Mobifone Corporation and VietnaMobile, from Hanoi to Ho Chi Minh City

Vietnam is a country you cross rather than visit: Hanoi and Ha Long Bay in the north, the old town of Hoi An and the beaches of Da Nang in the middle, Ho Chi Minh City and the Mekong Delta in the south, with sleeper trains, buses and short flights in between. Every leg involves a ride-hailing app, a translation app and a map, and landing with no data means a roaming pass or an airport SIM counter. A Vietnam eSIM from GlobaleSIM is bought online, installed before departure and connects automatically on arrival, while your own number stays live on your primary SIM.

Networks and coverage in Vietnam

GlobaleSIM’s eSIM Vietnam connects to three partner networks: Mobifone Corporation, VietnaMobile and Viettel. Your phone attaches to whichever is available where you are, and you can select one manually if a mountain town is better served by another operator. Coverage is strong in Hanoi, Ho Chi Minh City, Da Nang, Hue, Nha Trang and along the main north-south corridor. In the highlands around Sapa and Ha Giang, on boats in Ha Long Bay and deep in the Mekong Delta, signal is more variable on every network, so save maps offline before you go.

Plans, prices and validity

The Vietnam prepaid data plan starts from $4 for 1GB, and is also available in 2GB, 3GB, 5GB, 10GB, 20GB and 50GB. Validity is generous for the larger plans: 1GB is valid for 7 days, 2GB for 15 days, and 3GB, 5GB, 10GB, 20GB and 50GB are each valid for 30 days. A one-week city trip with ride-hailing, translation and messaging fits into 3GB. A three-week north-to-south journey with photo backups and video calls home is comfortable on 10GB. Digital nomads based in Da Nang or Ho Chi Minh City, families sharing a hotspot and anyone streaming on long train journeys should look at 20GB or 50GB. The validity clock only starts when your phone first connects to a supported network in Vietnam, so installing early costs nothing.

Installing your eSIM for Vietnam

• Buy online and receive the QR code by email within minutes; nothing is shipped.
• Install over Wi-Fi before you fly. Data only works once you are in Vietnam.
• On arrival, enable data roaming on the eSIM line and set it as your data line; your primary SIM keeps your own number active.
• Hotspot and tethering are supported, so a laptop, tablet or travel companion can share the connection.
• Top up from the GlobaleSIM dashboard or app at any time, with 24/7 human support on WhatsApp.

Tips for mobile data in Vietnam

Ride-hailing apps, including motorbike taxis, are the standard way to move around Vietnamese cities, so a live connection from the arrivals hall pays for itself. QR-code payments are common in cafés and shops, and a translation app with the camera feature makes menus and street signs manageable. Café Wi-Fi is everywhere and usually decent, but sleeper trains and long-distance buses have none, so keep the eSIM as your main line. Book trains, tours and Ha Long cruises by message and reconfirm the day before.

Calls and a phone number in Vietnam

Most hotels, tour desks and drivers in Vietnam communicate on messaging apps, so data-only travelers are well served. If you prefer to call a guesthouse or need a number that receives SMS codes while abroad, add a voice bundle of +100, +200 or +300 minutes at checkout and the eSIM Vietnam comes with a dedicated international phone number, US +1 or UK +44, for calls and SMS. Calling is not included on data-only plans.

Why GlobaleSIM for Vietnam

Three partner networks on one plan, a transparent one-time price, generous 30-day validity on the larger sizes, hotspot sharing, the option of a real phone number, and human support around the clock. The Vietnam eSIM works with any carrier-unlocked eSIM device, including iPhone 11 and later, Samsung Galaxy S20 and later, and Google Pixel.