What is an eSIM?
An eSIM is a digital SIM card embedded in your device, meaning there’s no need to purchase or swap physical SIM cards. You can keep your current SIM card active while adding an eSIM for internet connectivity in Vietnam. Activating an eSIM is simple and done via an app or QR code provided by the eSIM provider.
Benefits compared to traditional SIM cards:
- No physical SIM card swap needed.
- Multiple eSIM profiles can be used on one device.
- Instant activation, even before arriving in Vietnam.
Important things to know before buying an eSIM
Device compatibility
Not all phones support eSIMs, so it’s essential to check if your device is compatible before purchasing one. Most newer phones, such as the iPhone XS and later models, as well as high-end Android devices like the Samsung Galaxy S20, support eSIM functionality. Older devices typically do not.
Check your device compatibility here: Does my device support eSIM?
Alternative options
If your phone doesn’t support eSIMs or you prefer a simpler setup, a traditional SIM card is a reliable alternative. Vietnamese SIM cards are widely available and easy to use.
Learn more: Buying a SIM Card in Vietnam.
Special offers
If you book a complete tour with Local Vietnam, you’ll receive a free local SIM card to ensure you stay connected during your trip. This is an excellent option if you prefer the convenience of having everything prepared for you.
The best network in Vietnam: Viettel
When choosing an eSIM, it’s important to note that eSIM providers don’t operate their own networks. Instead, they rely on partnerships with local mobile networks. This means the quality of your connection depends on the local network the eSIM provider uses.
In Vietnam, the three main networks are Viettel, Vinaphone, and Mobifone, each offering good service in cities. Among them, Viettel is widely regarded as the best, thanks to its strong coverage that extends to rural and remote areas.
If you’re exploring areas beyond urban centers, choosing an eSIM provider that partners with Viettel ensures the most reliable service throughout the country. Always check which network or networks an eSIM uses before purchasing to avoid connectivity issues.
The 3 best eSIM options for Vietnam
Here are three top eSIM options to keep you connected during your trip to Vietnam, each with unique advantages and drawbacks to suit different traveler needs.
1. Viettel eSIM
As Vietnam’s leading network provider, Viettel offers its own eSIM option, providing the best coverage and affordable plans. It’s ideal for travelers who prioritize cost and reliable connectivity, especially in rural areas.
Benefits:
- Affordable and flexible plans.
- Best network coverage in Vietnam.
Drawbacks:
- Requires offline registration in Vietnam with a passport.
- Activation can take time and must be done at a Viettel store or airport.
Price example: Starting at €3 per month for 1 GB/day.
2. Holafly
Holafly is a global eSIM provider, making it perfect for travelers visiting multiple countries. It offers unlimited data in Vietnam, providing peace of mind for heavy internet users, though it’s more expensive than local options.
Benefits:
- Unlimited data for worry-free browsing.
- Easy online activation via an app.
- Ideal for multi-country trips.
Drawbacks:
- More expensive than local eSIM providers.
- Does not include a local Vietnamese phone number.
Price example: Approximately €45 for 14 days of unlimited data.
3. VietnamEsim (Gigago eSIM)
VietnamEsim by Gigago is an excellent option for travelers who prefer online activation. It uses Viettel’s network for reliable coverage and is competitively priced, though it lacks unlimited data options like Holafly.
Benefits:
- Online activation eliminates the need for in-person registration.
- Uses Viettel’s reliable network.
- Good value for money.
Drawbacks:
- No unlimited data option.
Price example: €13 for 15 days, €18 for 30 days.
Using Grab in Vietnam with an eSIM
You can use Grab (ride hailing app) with an eSIM without needing a local Vietnamese number. Here’s how:
- Keep your primary SIM active: Ensure your primary SIM card remains active to receive the SMS verification code when registering with Grab. You can use international roaming for this purpose.
- Use eSIM for data: Set your eSIM as the primary data connection while keeping your primary SIM’s roaming turned off. This allows you to save on roaming data costs while staying connected.
- Zalo for calls: If you’re using Grab and need to communicate with drivers, you can register a free Zalo account with your international number. Many Grab drivers use Zalo for calls, making it a convenient option.
- No local number required: As long as your phone can receive SMS messages, you can register and use Grab with your international number.
Tips for using an eSIM in Vietnam
1. Activate in advance
Set up your eSIM before arriving in Vietnam to ensure you’re connected as soon as you land. Many eSIM providers offer QR code activation, which can be done from anywhere with an internet connection.
2. Check coverage
Confirm that your eSIM provider uses Viettel or another reliable local network for the best connectivity. Viettel offers superior coverage, especially if you plan to explore rural areas.
3. Monitor data usage
Some eSIM plans come with daily or total data limits. Take advantage of free Wi-Fi in hotels, cafes, and restaurants to save your mobile data for when you’re on the move.
4. Keep your primary SIM active
You can use your regular SIM card for calls and texts while relying on the eSIM for data. This is especially helpful if you need to stay reachable on your regular number.
