Install once, keep it on your phone.
Pay as you go, for actual use.
No fixed plans, no expiration.
Use balance only when you travel.
One eSIM for all trips, 200+ Countries.
Pay As You Go data, wherever you travel
💵 You add
$25
to your balance.
✈️ In
Vietnam
you use
3GB
at
$
2.51
/GB
.
🌍
Japan
3 months later -
3GB at $
2.82
/GB.
🔥 Your same balance covers both trips -
one eSIM, no expiry, no wasted data, no new package.
Just $
2.51
per GB. No surprises, No bundles, No expiry.
Light Usage
~200 MB/day
$
0.00
/day
Maps, messaging, browsing
Moderate
~500 MB/day
$
0.00
/day
Heavy
~2 GB/day
$
0.00
/day
Streaming, uploads, video calls
Ho Chi Minh City: Expect excellent 4G and rapidly expanding 5G coverage from major networks across the core urban districts like District 1 and 3. Signal remains strong in most modern buildings and shopping malls. The HCMC Metro system provides good connectivity in stations, though the signal may be intermittent in the underground tunnels between stops.
Hanoi: The capital offers robust 4G and 5G service, particularly in central districts like Hoan Kiem (the Old Quarter) and Ba Dinh. Coverage inside the narrow, deep buildings of the Old Quarter can sometimes be weaker. The elevated sections of the Hanoi Metro, such as Line 2A, have consistent, strong signal.
Da Nang: You'll find superb 4G and 5G connectivity throughout the city center and along the popular My Khe and Non Nuoc beaches. Signal is reliable at tourist hotspots like the Marble Mountains and the Dragon Bridge, but can become patchy on the higher, more remote parts of the Son Tra Peninsula.
Hoi An: Coverage is very good within the UNESCO-listed Ancient Town and the surrounding areas, including nearby An Bang Beach. The dense, historic buildings can occasionally weaken the signal indoors. During peak evening hours, network congestion can sometimes slow data speeds in the most crowded parts of the pedestrianized old town.
Hue: Reliable 4G coverage is available across the city, providing a strong connection within the walls of the Imperial City (the Citadel) and at the famous royal tombs located just outside the main center. The signal holds up well for boat trips along the Perfume River but may fade if you venture further into the rural countryside.



Major Highways & Expressways: Connectivity is generally strong along the main coastal North-South corridor, covering National Route 1A (QL1A) and sections of the North-South Expressway (CT01). However, driving the Ho Chi Minh Highway through the inland Trường Sơn mountains results in frequent and long signal drops. Expressways into mountainous regions, like the Hanoi - Lao Cai Expressway (CT05), also have intermittent coverage in their more remote sections.
North-South Railway: The main "Reunification Express" train line between Hanoi and Ho Chi Minh City maintains a relatively stable signal as it parallels the populated coastal plain. Expect temporary signal loss when passing through the numerous short tunnels between Da Nang and Hue, and in more rural stretches through central Vietnam where the line moves further inland.
Mountain Passes: Mobile signal is unreliable to non-existent when traversing high mountain passes. The famous Hải Vân Pass between Da Nang and Hue has very poor coverage on the scenic road over the mountain. Similarly, passes in the northern highlands like the Ô Quy Hồ Pass near Sapa and remote roads in Hà Giang province have extensive dead zones.
Hải Vân Tunnel: As the longest road tunnel in Southeast Asia, the Hải Vân Tunnel connecting Da Nang and Hue does not have consistent cellular coverage inside. Service drops upon entering and resumes upon exiting, creating a connectivity gap of about 15-20 minutes depending on traffic.
Central & Northern Highlands: Traveling between towns in the Central Highlands (Tây Nguyên) and the far northern mountainous provinces like Hà Giang and Cao Bằng involves significant periods without a mobile signal. Coverage is typically concentrated in towns and district centers, with large gaps in the agricultural and forested areas that separate them.
How it works
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Sign up and get your Global eSIM in just a few clicks.
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“
I loved the per-country pricing model. I only paid for the countries I visited, and it was way cheaper than other eSIM providers. No hidden fees — just clear and simple.
“
The auto top-up feature is a lifesaver. I never have to check my balance — internet just works. And when I’m not traveling, I don’t pay. It’s fair and super convenient.
Angel Siphron
Rated
4.7
Bcengi TravelPass charges $2.51 per gigabyte for service in Vietnam, leveraging the Mobifone and Viettel networks. Your account balance will not expire, and there are no daily fees or data bundles. With moderate usage, around 500 MB each day, you can expect a daily expense of approximately $2.51.
No, this is not required. The eSIM functions as an additional, self-contained data connection. Your existing physical SIM will continue to work for receiving calls and SMS messages to your home number. You just need to activate the TravelPass eSIM for data services upon arrival.
Yes, provided your specific device model supports eSIM technology. Compatible devices include iPhone XS and all subsequent models, Google Pixel 3 and newer iterations, and Samsung Galaxy S20 and later versions. For a complete list of supported devices, please visit bcengi.com/travelpass/esim-compatibility.
Signal strength is robust in urban areas and along the primary tourist route connecting Hanoi to Ho Chi Minh City. However, anticipate patchy or weaker signal in specific regions such as Ha Long Bay (especially while on the water), Sapa and the mountainous northern territories, secluded waterways of the Mekong Delta, and high-altitude trekking paths. It is advisable to download offline maps before venturing into these locations.
For a standard week of travel, such as an itinerary covering Hanoi and Ha Long Bay, moderate users usually consume between 2 and 4 GB of data. Those with high data demands, involving video calls and frequent uploads, should allocate 5 to 6 GB. At a rate of $2.51 per GB, a week of moderate data consumption would cost approximately $5 to $10.
Connectivity in Ha Long Bay becomes restricted once your vessel is on the water. While 4G is accessible near the harbor and within Halong City, the majority of the bay offers inconsistent signal, with patchy coverage at best. Prepare for constrained internet access during overnight cruises; ensure you download maps, travel plans, and any other necessary information before embarking.
It is highly recommended to install it. Zalo serves as Vietnam's leading messaging platform, widely adopted by the majority of its inhabitants. Many local guesthouses, tour operators, and eateries utilize Zalo for communication instead of WhatsApp. You are able to receive messages from Vietnamese contacts even without a local phone number, though a Vietnamese number is required to establish a complete account.
Coverage along the Reunification Express rail route is inconsistent. Sections traversing urban centers and coastal lowlands, including Danang, Hue, and Nha Trang, typically provide decent 4G service. Signal is frequently lost in mountainous regions, especially within the Hai Van Pass tunnel between Hue and Da Nang. Interior portions passing through the Central Highlands exhibit sporadic connectivity. In summary, consider train internet access to be intermittent and ensure you download any entertainment or offline maps before your journey.
In Sapa town, both Mobifone and Viettel offer 4G coverage. However, if you are venturing into the rice terraces of Muong Hoa Valley or undertaking multi-day treks to more secluded villages, anticipate a considerable drop in signal, potentially to 2G or complete absence in certain valleys. While the summit station of the Fansipan cable car provides connectivity, the hiking trail leading up lacks service.
Yes, Bcengi TravelPass is operational across several nations, and your remaining balance transfers with you upon crossing a border. Consult the Cambodia eSIM page for specific coverage information and per-GB pricing in that country. The Mekong Crossing, a frequently used overland route between Vietnam and Cambodia via Moc Bai or Vinh Xuong, is one instance where a pre-installed multi-country eSIM proves particularly advantageous.
Pay As You Go
from
$
2.51
/GB
$10
POPULAR
$25
$50
$100
Select your starting balance
Get your eSIM
→
💵 You add
$25
to your balance.
✈️ In
Vietnam
you use
3GB
at
$
2.51
/GB
.
🌍
Japan
3 months later -
3GB at $
2.82
/GB.
🔥 Your same balance covers both trips — one eSIM, no expiry, no wasted data, no new package.
How it works
Install once, keep it on your phone
Use balance only when you travel
Pay as you go, for actual use.
No fixed plans, no expiration
One eSIM for all trips, 200+ Countries.
Learn more
Just $
2.51
per GB.
No surprises, No bundles, No expiry.
Light Usage •
200 MB/day
$
0.00
/day
Maps, messaging, browsing
Moderate •
500 MB/day
$
0.00
/day
Heavy •
2 GB/day
$
0.00
/day
Streaming, uploads, video calls
Ho Chi Minh City: Expect excellent 4G and rapidly expanding 5G coverage from major networks across the core urban districts like District 1 and 3. Signal remains strong in most modern buildings and shopping malls. The HCMC Metro system provides good connectivity in stations, though the signal may be intermittent in the underground tunnels between stops.
Hanoi: The capital offers robust 4G and 5G service, particularly in central districts like Hoan Kiem (the Old Quarter) and Ba Dinh. Coverage inside the narrow, deep buildings of the Old Quarter can sometimes be weaker. The elevated sections of the Hanoi Metro, such as Line 2A, have consistent, strong signal.
Da Nang: You'll find superb 4G and 5G connectivity throughout the city center and along the popular My Khe and Non Nuoc beaches. Signal is reliable at tourist hotspots like the Marble Mountains and the Dragon Bridge, but can become patchy on the higher, more remote parts of the Son Tra Peninsula.
Hoi An: Coverage is very good within the UNESCO-listed Ancient Town and the surrounding areas, including nearby An Bang Beach. The dense, historic buildings can occasionally weaken the signal indoors. During peak evening hours, network congestion can sometimes slow data speeds in the most crowded parts of the pedestrianized old town.
Hue: Reliable 4G coverage is available across the city, providing a strong connection within the walls of the Imperial City (the Citadel) and at the famous royal tombs located just outside the main center. The signal holds up well for boat trips along the Perfume River but may fade if you venture further into the rural countryside.

Major Highways & Expressways: Connectivity is generally strong along the main coastal North-South corridor, covering National Route 1A (QL1A) and sections of the North-South Expressway (CT01). However, driving the Ho Chi Minh Highway through the inland Trường Sơn mountains results in frequent and long signal drops. Expressways into mountainous regions, like the Hanoi - Lao Cai Expressway (CT05), also have intermittent coverage in their more remote sections.
North-South Railway: The main "Reunification Express" train line between Hanoi and Ho Chi Minh City maintains a relatively stable signal as it parallels the populated coastal plain. Expect temporary signal loss when passing through the numerous short tunnels between Da Nang and Hue, and in more rural stretches through central Vietnam where the line moves further inland.
Mountain Passes: Mobile signal is unreliable to non-existent when traversing high mountain passes. The famous Hải Vân Pass between Da Nang and Hue has very poor coverage on the scenic road over the mountain. Similarly, passes in the northern highlands like the Ô Quy Hồ Pass near Sapa and remote roads in Hà Giang province have extensive dead zones.
Hải Vân Tunnel: As the longest road tunnel in Southeast Asia, the Hải Vân Tunnel connecting Da Nang and Hue does not have consistent cellular coverage inside. Service drops upon entering and resumes upon exiting, creating a connectivity gap of about 15-20 minutes depending on traffic.
Central & Northern Highlands: Traveling between towns in the Central Highlands (Tây Nguyên) and the far northern mountainous provinces like Hà Giang and Cao Bằng involves significant periods without a mobile signal. Coverage is typically concentrated in towns and district centers, with large gaps in the agricultural and forested areas that separate them.
Learn more about
Vietnam
How it works
1. Buy eSIM
Sign up and get your Global eSIM in just a few clicks.
2. Activate eSIM
Scan the QR code and get connected instantly — no physical SIM needed.
3. Pay as you go
Only pay for what you use. No contracts, no hidden fees.
Get your eSIM
“
I loved the per-country pricing model. I only paid for the countries I visited, and it was way cheaper than other eSIM providers. No hidden fees — just clear and simple.
Kaylynn Mango
Bcengi TravelPass charges $2.51 per gigabyte for service in Vietnam, leveraging the Mobifone and Viettel networks. Your account balance will not expire, and there are no daily fees or data bundles. With moderate usage, around 500 MB each day, you can expect a daily expense of approximately $2.51.
No, this is not required. The eSIM functions as an additional, self-contained data connection. Your existing physical SIM will continue to work for receiving calls and SMS messages to your home number. You just need to activate the TravelPass eSIM for data services upon arrival.
Yes, provided your specific device model supports eSIM technology. Compatible devices include iPhone XS and all subsequent models, Google Pixel 3 and newer iterations, and Samsung Galaxy S20 and later versions. For a complete list of supported devices, please visit bcengi.com/travelpass/esim-compatibility.
Signal strength is robust in urban areas and along the primary tourist route connecting Hanoi to Ho Chi Minh City. However, anticipate patchy or weaker signal in specific regions such as Ha Long Bay (especially while on the water), Sapa and the mountainous northern territories, secluded waterways of the Mekong Delta, and high-altitude trekking paths. It is advisable to download offline maps before venturing into these locations.
For a standard week of travel, such as an itinerary covering Hanoi and Ha Long Bay, moderate users usually consume between 2 and 4 GB of data. Those with high data demands, involving video calls and frequent uploads, should allocate 5 to 6 GB. At a rate of $2.51 per GB, a week of moderate data consumption would cost approximately $5 to $10.
Connectivity in Ha Long Bay becomes restricted once your vessel is on the water. While 4G is accessible near the harbor and within Halong City, the majority of the bay offers inconsistent signal, with patchy coverage at best. Prepare for constrained internet access during overnight cruises; ensure you download maps, travel plans, and any other necessary information before embarking.
It is highly recommended to install it. Zalo serves as Vietnam's leading messaging platform, widely adopted by the majority of its inhabitants. Many local guesthouses, tour operators, and eateries utilize Zalo for communication instead of WhatsApp. You are able to receive messages from Vietnamese contacts even without a local phone number, though a Vietnamese number is required to establish a complete account.
Coverage along the Reunification Express rail route is inconsistent. Sections traversing urban centers and coastal lowlands, including Danang, Hue, and Nha Trang, typically provide decent 4G service. Signal is frequently lost in mountainous regions, especially within the Hai Van Pass tunnel between Hue and Da Nang. Interior portions passing through the Central Highlands exhibit sporadic connectivity. In summary, consider train internet access to be intermittent and ensure you download any entertainment or offline maps before your journey.
In Sapa town, both Mobifone and Viettel offer 4G coverage. However, if you are venturing into the rice terraces of Muong Hoa Valley or undertaking multi-day treks to more secluded villages, anticipate a considerable drop in signal, potentially to 2G or complete absence in certain valleys. While the summit station of the Fansipan cable car provides connectivity, the hiking trail leading up lacks service.
Yes, Bcengi TravelPass is operational across several nations, and your remaining balance transfers with you upon crossing a border. Consult the Cambodia eSIM page for specific coverage information and per-GB pricing in that country. The Mekong Crossing, a frequently used overland route between Vietnam and Cambodia via Moc Bai or Vinh Xuong, is one instance where a pre-installed multi-country eSIM proves particularly advantageous.