📱 Telecom & Internet

Zalo is the dominant messaging app in Vietnam, used by the vast majority of the population for chat, calls, and increasingly for payments and mini-apps. About Zalo: Beyond basic messaging and voice/video calls, Zalo has grown into a broader platform hosting mini-apps for payments (ZaloPay), official business accounts, and news content, making it central to daily digital life for most Vietnamese users. Key Features: Messaging & Calls: Send messages and make voice or video calls to Zalo contacts. Mini-Apps: Access integrated services like ZaloPay and official business accounts without leaving the app. Official Accounts: Follow businesses, government agencies, and services through verified official accounts. Group Chats: Create and manage group chats for family, friends, or work. How to Get Started: Download Zalo from Google Play or the App Store. Register with a phone number and confirm by SMS. Add contacts by phone number or QR code. Start chatting, calling, or exploring integrated mini-apps. Important Notice: The interface has no English option, and most users you'll interact with will expect Vietnamese. Having Zalo is very useful for coordinating with local contacts, drivers, or service providers even if you don't speak Vietnamese yourself.

Viettel is Vietnam's largest mobile operator, offering the widest network coverage in the country alongside online self-service and top-up options. About Viettel: As a state-owned operator with the largest subscriber base and network footprint in Vietnam, Viettel offers particularly strong coverage in rural and remote areas where other operators may be weaker, alongside standard prepaid tourist SIM options. Key Features: Widest Network Coverage: The most extensive network coverage across Vietnam, including rural and mountainous areas. Tourist SIM Packages: Prepaid SIMs bundled with data, calls, and texts, available at airports and stores. Self-Service App: Check balance, top up, and manage your plan through the My Viettel app. Online Top-Up: Add credit to your line using a bank card or e-wallet. How to Get Started: Buy a Viettel tourist SIM at the airport or any Viettel store, bringing your passport. Insert the SIM and follow the activation instructions provided in-store. Download the My Viettel app to check balance and top up. Top up online or at any authorized retailer as needed. Important Notice: A passport is required to register any SIM card in Vietnam, including tourist packages — this is a legal requirement. Registration cannot be done online in advance of arrival.

Vinaphone is a state-owned mobile operator in Vietnam offering tourist SIM packages with dedicated airport counters for visitors. About Vinaphone: Part of the state-owned VNPT group, Vinaphone offers solid nationwide coverage and has invested specifically in tourist-facing services, including dedicated SIM counters at major international airports. Key Features: Airport Tourist Counters: Buy a tourist SIM directly at dedicated counters in major international airports. Tourist SIM Packages: Prepaid SIMs bundled with data, calls, and texts, designed for visitors. Self-Service App: Check balance, top up, and manage your plan through the My VNPT app. Solid Network Coverage: Reliable coverage across major cities and most tourist destinations. How to Get Started: Buy a tourist SIM at the Vinaphone counter in the airport arrivals area, bringing your passport. Insert the SIM and follow the activation instructions provided at the counter. Download the My VNPT app to check balance and top up. Top up online or at any authorized retailer as needed. Important Notice: A passport is required to register any SIM card in Vietnam, including tourist packages sold at the airport counter — this is a legal requirement, not optional.

Mobifone is a major Vietnamese mobile operator known for inexpensive data packages and solid urban network coverage. About Mobifone: As one of Vietnam's three main state-linked mobile operators, Mobifone is often chosen for its competitively priced data plans, with good coverage particularly in major cities and along common tourist routes. Key Features: Affordable Data Packages: A range of prepaid plans with competitive pricing on data specifically. Self-Service App: Check balance, top up, and manage your plan through the My Mobifone app. Online Top-Up: Add credit to your line using a bank card or e-wallet. Solid Urban Coverage: Reliable network coverage across major Vietnamese cities. How to Get Started: Buy a Mobifone tourist SIM at the airport or any Mobifone store, bringing your passport. Insert the SIM and follow the activation instructions provided in-store. Download the My Mobifone app to check balance and top up. Top up online or at any authorized retailer as needed. Important Notice: A passport is required to register any SIM card in Vietnam, including tourist packages — this is a legal requirement and cannot be done online in advance of arrival.