Physical SIM vs. eSIM: Which Should You Choose?
Both options work well in Vietnam, but your choice depends on convenience, device compatibility, and whether you want to keep your home number active.
| Feature | Physical SIM | eSIM |
|---|---|---|
| Convenience | Requires physical insertion; may need a SIM ejector tool. | Instant activation; no physical card needed. |
| Device Compatibility | Works with any unlocked phone. | Requires an eSIM-compatible smartphone (iPhone XR or newer, most recent Android models). |
| Cost | Very cheap; prepaid plans start at ~$5. | Slightly more expensive; plans from $10–$40. |
| Dual SIM | Single SIM only unless phone has dual SIM slot. | Can keep your home SIM active for calls/SMS while using eSIM for data. |
| Availability | Available at airports, stores, and online. | Buy online before travel; instant delivery via email. |
Local Operators
Viettel
Viettel is the largest carrier in Vietnam, offering the widest coverage including remote areas like Ha Giang and Sapa. Ideal for travelers venturing beyond cities.
Vinaphone
Vinaphone provides fast urban speeds and reliable connectivity in popular destinations. A great choice for city-focused trips.
Mobifone
Mobifone is budget-friendly with decent coverage for most tourist spots. Suitable for travelers on a tight budget.
Where to Buy a SIM Card or eSIM in Vietnam
Price Comparison
| Plan | Data | Duration | Price |
|---|---|---|---|
| Viettel Tourist SIM (7 days) | 3GB/day (21GB total) | 7 days | $5 |
| Vinaphone Tourist SIM (15 days) | 2GB/day (30GB total) | 15 days | $10 |
| Mobifone Tourist SIM (30 days) | 1.5GB/day (45GB total) | 30 days | $12 |
| Holafly eSIM Vietnam (15 days) | Unlimited data (fair use policy) | 15 days | $27 (after 5% discount: $25.65) |
How to Activate Your SIM Card or eSIM in Vietnam
Requirements:
- Unlocked phone
- Passport (for physical SIM registration)
- eSIM-compatible device (for eSIM)
Purchase your SIM or eSIM
Buy a physical SIM at the airport or store, or purchase an eSIM online from Holafly or other providers.
Registration (physical SIM only)
Provide your passport for registration. The store staff will complete the process. This is mandatory by law.
Insert SIM or install eSIM
For physical SIM: insert into your phone. For eSIM: scan the QR code sent via email or follow the provider's app instructions.
Configure APN settings (if needed)
Most SIMs work automatically. If not, enter APN: internet (for Viettel) or m-world (for Vinaphone). eSIMs usually auto-configure.
Practical Tips
💡 Keep your home SIM active
If you use an eSIM, you can keep your physical home SIM for calls/SMS while using the eSIM for data. This avoids roaming charges.
💡 Buy at the airport for convenience
Although slightly more expensive, buying at the airport saves time and ensures you have data immediately upon arrival.
💡 Check coverage before choosing
If you plan to visit remote areas like Ha Giang or Sapa, choose Viettel for the best coverage.
Frequently Asked Questions
Which SIM card is best for tourists in Vietnam?
Viettel is the best overall due to its wide coverage (98% of population) and reliable speeds. For city-focused trips, Vinaphone offers excellent urban performance.
Which SIM is the best in Vietnam?
Viettel is considered the best for coverage and reliability, especially in rural areas. Vinaphone is best for urban speeds.
Is $1000 enough for 2 weeks in Vietnam?
Yes, $1000 is more than enough for a comfortable 2-week trip including accommodation, food, transport, and activities. Budget travelers can spend as little as $500.
What to eat in Vietnam to not get sick?
Stick to freshly cooked street food, avoid raw vegetables washed in tap water, drink bottled water, and choose busy stalls with high turnover. Popular safe options include pho, banh mi, and com tam.
Can foreigners buy SIM cards in Vietnam?
Yes, foreigners can buy SIM cards easily with a passport. Registration is mandatory. Both physical SIMs and eSIMs are available.
Getting connected in Vietnam is straightforward and affordable. Whether you choose a physical SIM from Viettel or an eSIM from Holafly, you'll enjoy fast data for navigation, translation, and social media. For the best convenience, consider buying an eSIM before your trip—you'll have instant connectivity without hunting for a store. Don't forget to use the discount code TOURDUMONDE5CONTINENTS for 5% off your Holafly eSIM.