Vietnam is quickly becoming one of Southeast Asia’s most connected destinations, making mobile connectivity essential for every traveler. As you explore the vibrant streets of Hanoi and Ho Chi Minh City, you’ll encounter digital payment systems, QR menus, and rideshare apps at every turn. Local SIM cards and affordable data plans make it easy to stay connected throughout your journey. Whether you’re ordering pho through GrabFood or navigating to Phu Quoc’s beaches, a smartphone with a reliable local SIM is your must-have companion. This guide covers everything you need to know about staying connected in Vietnam in 2026.
Mobile Operators in Vietnam
Vietnam has four major mobile operators dominating the telecommunications market. Each offers different packages tailored to tourists’ needs, with varying coverage and pricing options.
Here’s a detailed comparison of Vietnam’s mobile operators:
| Operator | Pros | Cons | Best for |
| Viettel | – Widest coverage nationwide – Strong signal in remote areas – Reliable 4G/5G in cities | – Slightly higher prices – Can be busy during peak hours | – Long-term travelers – Adventure tourists – Rural explorers |
| Vinaphone | – Fastest data speeds – Globally ranked 5G speeds (2nd worldwide) – Reliable in cities and resort areas – Good English support | – Limited rural coverage – Higher package prices | – City travelers – Digital nomads – Business travelers |
| Mobiphone | – Budget-friendly options – Good urban coverage – Simple plans | – Limited rural coverage – Slower speeds in some areas | – Budget travelers – Short-term visitors – Basic internet users |
| Vietnamobile | – Cheapest plans – Sufficient for basic needs | – Limited coverage – Slower speeds | – Budget travelers – City-only visitors |
So, which is the best mobile network in Vietnam?
Viettel stands out as the best overall mobile network in Vietnam, especially for travelers. With a 54.2% market share and nationwide coverage reaching even remote areas, it’s the most reliable choice for staying connected throughout your journey. While slightly more expensive than other options, Viettel’s extensive coverage and stable connection make it worth the extra cost, particularly if you plan to explore beyond major cities.
For city-focused travelers who prioritize raw 5G speed benchmarks, Vinaphone is a strong alternative. Ookla’s global 5G rankings placed VinaPhone second in the world for 5G speed in 2025. It is particularly reliable in Hanoi, Ho Chi Minh City, Da Nang, and major resort areas like Phu Quoc and Cat Ba.
Our recommendation by traveler type:
- Exploring rural Vietnam, trekking, or island-hopping → Viettel
- Staying in cities or beach resorts → Viettel or Vinaphone
- Short city trip on a budget → MobiFone
- City-only, data-light use → Vietnamobile
Is there 5G network in Vietnam?
Yes — Vietnam now has fully commercial 5G coverage, and the rollout has been remarkably fast. All three major operators launched 5G in 2024–2025:
- MobiFone commercialized its 5G network on June 23, 2025, initially focused on central urban areas, with nationwide expansion underway.
- Viettel launched commercial 5G in October 2024. By end of 2025, it operated over 30,000 5G base stations covering 90% of outdoor areas and 70% of indoor areas nationwide, including all 34 provincial capitals, airports, industrial parks, tourist sites, hospitals, and universities. In January 2026, Viettel’s average 5G download speed reached 616.99 Mbps.
- Vinaphone (VNPT) launched 5G in December 2024 and has already accumulated nearly 4 million 5G subscribers. It targets 55–60% population coverage with 5G in 2026.
Network coverage breakdown:
- 5G: Available in all major cities, provincial capitals, tourist destinations, airports, and rapidly expanding to rural areas
- 4G/LTE: Near-universal coverage across the country
- 3G: Being phased out as operators focus investment on 4G and 5G upgrades
Vietnam’s overall mobile broadband speed reached 136.21 Mbps as of mid-2025, placing it among the top 20 globally, a remarkable climb of 37 positions in download speed rankings from the previous year.
How can I get a SIM card when traveling in Vietnam?
Getting a SIM card in Vietnam is straightforward and affordable. Here are your options:
- Physical SIM card: Available at airport arrival halls (Hanoi, Ho Chi Minh City, Da Nang, Phu Quoc), official carrier stores in city centers, and authorized dealers in backpacker districts (e.g., Old Quarter in Hanoi, Bui Vien in Ho Chi Minh City).
- eSIM: All three major operators: Viettel, Vinaphone, and MobiFone now support eSIM. You can also purchase eSIMs from international platforms like Airalo or Nomad before departure, which activate the moment you land. Viettel or Vinaphone are the networks typically provisioned for Vietnam eSIMs.
What you’ll need to register a SIM (registration is mandatory by Vietnamese law):
- Your passport
- Cash or card for payment
- An unlocked phone
Typical tourist SIM packages (2025–2026 pricing):
- Basic plans: from 70,000–100,000 VND (approx. US$3–4) for 7 days
- Standard tourist packages: 150,000–200,000 VND (approx. US$6–8) for 30 days with 3–4 GB of data per day
- Long-stay or heavy-data plans: up to 200,000–300,000 VND (approx. US$8–12) per month with 10–20 GB
Tip: Buying at official carrier stores or in backpacker districts in the city is usually cheaper than airport booths, which often carry a small convenience premium.
What about the wifi?
WiFi availability in Vietnam is impressively widespread and generally free. And you can easily access it by asking staff. Here’s what you can expect:
- Hotels/Hostels: Free WiFi standard, though speed varies by establishment
- Cafes/Restaurants: Nearly universal free WiFi with passwords displayed
- Shopping Malls: Free public WiFi common
- Airports/Stations: Free WiFi available
- Average speeds: Vietnam’s fixed broadband average exceeded 261.8 Mbps in 2025, placing it in the global top 10.
However, you still should prepare for a SIM (or eSIM) when traveling in Vietnam which has data due to wifi quality in some hotels may not be good enough. Here are Hotel WiFi quality varies for your reference:
- Luxury hotels: Generally excellent
- Mid-range: Usually reliable
- Budget: May be limited to common areas
Calling in Vietnam
When it comes to making calls in Vietnam, travelers have a few convenient options. You can use a SIM card (or eSIM) for data to access Internet and call by common mobile App such as WhatsApp, Messenger, Line, Kakaotalk, Skype, etc. You can also use prepaid credit for international calls. When answering the phone, a common greeting is “a lô.”
Besides, for emergency situations, be aware of the following important numbers in Vietnam:
| Service | Emergency Number |
Police | 113 |
| Fire | 114 |
| Ambulance | 115 |
| Search and Rescue | 112 |
| Child Protection | 111 |
Stay connected and informed while exploring the incredible landscapes of Vietnam!
>> What to pack in Vietnam before going? Read more: Ultimate Vietnam Packing List: All you need to bring before going
FAQs
Is MobiFone better than Viettel?
No, Viettel generally offers better coverage and reliability than MobiFone. However, MobiFone provides good value for budget-conscious travelers staying in urban areas.
Can I use mobile data in Vietnam?
Yes, mobile data is widely available and reliable in Vietnam, with extensive 4G coverage and emerging 5G networks in major cities.
Which is the fastest network in Vietnam?
Vinaphone currently offers the fastest data speeds, with average download speeds of 31.8 Mbps, followed closely by Viettel at 25.7 Mbps.
Is it worth getting SIM card in Vietnam?
Yes, getting a local SIM card is highly recommended. It’s affordable, provides better coverage than international roaming, and offers convenient access to local services and apps.
Can I use my cell phone in Vietnam?
Yes, most foreign phones work in Vietnam as long as they’re unlocked. Just ensure your device is compatible with Vietnamese networks (most modern phones are).
Does AT&T work well in Vietnam?
AT&T phones will work in Vietnam through roaming partnerships, but using a local SIM card is more cost-effective and provides better service.
Stay safe while using your phone in Vietnam by being cautious with public WiFi for sensitive transactions and keeping your device secure in crowded areas. Download essential apps like Grab (for transportation) and Google Maps offline before your trip for a smoother travel experience.
>> Read more for the complete Vietnam travel guide: 12 days in Vietnam: Perfect Itinerary & Comprehensive Travel Guide
>> Beyond Vietnam: Vietnam and Cambodia 2 Weeks: Perfect Itinerary & Complete Travel Guide
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