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
South Korea
you use
3GB
at
$
1.81
/GB
.
🌍
Thailand
3 months later -
3GB at $
1.81
/GB.
🔥 Your same balance covers both trips -
one eSIM, no expiry, no wasted data, no new package.
Just $
1.81
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
Seoul: You'll experience some of the world's best mobile connectivity here. Major districts like Myeongdong, Gangnam, and Hongdae have exceptionally strong 4G and 5G signals. The Seoul Metropolitan Subway is famous for its seamless coverage, providing reliable internet access on both platforms and inside moving trains, even deep underground.
Busan: South Korea's second city offers excellent network performance across its sprawling urban areas, including Haeundae Beach and Seomyeon. The Busan Metro system provides continuous connectivity, similar to Seoul's. While the signal is strong city-wide, you might notice slight fluctuations in some of the more mountainous areas on the city's outskirts.
Incheon: Connectivity is top-tier, starting from the moment you land at Incheon International Airport (ICN). The city, including the modern Songdo district, has robust 4G and 5G networks. Service is consistently strong on the Airport Railroad Express (AREX) and the Incheon Metro lines, ensuring a smooth connection into Seoul or around the city.
Daegu: As a major inland hub, Daegu boasts consistent and powerful mobile coverage throughout its downtown core and residential areas. The Daegu Metro offers reliable service underground, ensuring you can navigate and stay connected with ease. Indoor coverage in large shopping centers and buildings is generally very dependable.
Jeju Island: Coverage is excellent in major urban centers like Jeju City and Seogwipo, and along the main coastal roads popular with tourists. However, the signal can become weaker or intermittent in the island's rural interior, particularly when hiking in Hallasan National Park or visiting more remote natural attractions away from the coast.



Major Expressways: South Korea's primary highways, like Expressway No. 1 (Gyeongbu Expressway) between Seoul and Busan, offer consistent high-speed data coverage. However, routes crossing mountainous terrain, such as Expressway No. 50 (Yeongdong Expressway) through Gangwon province, may experience intermittent signal degradation or brief drops in more remote valleys and passes.
KTX High-Speed Rail: Connectivity on the KTX network is generally excellent, with reliable signal for most of the journey between major cities. Be prepared for frequent but brief signal interruptions as the train passes through the numerous tunnels common on all KTX lines, including the main Seoul-Busan route.
Mountainous Regions: Coverage is significantly reduced in the country's extensive mountain ranges, such as the Taebaek and Sobaek mountains. National Parks like Seoraksan and Jirisan have very spotty to non-existent service once you move away from visitor centers and onto hiking trails.
Tunnels and Remote Islands: While many modern tunnels on major routes are equipped with cellular repeaters, expect temporary signal loss when passing through older or longer road and rail tunnels. Similarly, while major islands like Jeju have strong networks, service on smaller, less populated islands off the southern and western coasts can be weaker and less reliable.
The DMZ Border Area: For security reasons, cellular service is heavily restricted and often completely unavailable in the civilian-access areas along the Demilitarized Zone (DMZ) in northern Gyeonggi and Gangwon provinces. Do not expect to have a signal when visiting observation posts or tour sites in this region.
How it works
Buy eSIM
Sign up and get your Global eSIM in just a few clicks.
Activate eSIM
Scan the QR code and get connected instantly — no physical SIM needed.
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.
“
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
Data on the KT network is priced at $1.81 per gigabyte. There are no daily charges, minimum bundle requirements, or expiration dates; you simply pay for the data you consume.
No, this is not necessary. TravelPass installs as a secondary eSIM profile, allowing your physical SIM to remain in your device for your home number and calls. TravelPass is solely for data services.
Yes, on devices that are compatible. Generally, iPhone XS and newer models, Pixel 3 and newer, and Samsung Galaxy S20 models and later are supported. For details regarding your specific model, please check the compatibility page.
eSIM coverage is strong across all major cities, the KTX corridor, and Jeju Island. Signal quality may diminish in mountainous hiking areas (such as upper Hallasan and portions of Seoraksan) and while passing through long tunnels. Connectivity on the Seoul Metro and most suburban transit routes remains consistently reliable.
For a typical 7-day trip primarily in Seoul with moderate usage (navigation, KakaoTalk, social media), plan for 2-3 GB. If you regularly make video calls or stream content, an additional 1-2 GB would be advisable. At $1.81 per GB, a 3 GB data budget would cost approximately $1.81.
Practically, yes. Communication in Korea largely relies on KakaoTalk, similar to how other countries use WhatsApp or iMessage-but even more comprehensively. Restaurants, tour operators, accommodation hosts, and fellow travelers in Korea will generally expect to contact you via KakaoTalk. It is recommended to install the app and set up your account before your arrival.
It works partially. Google Maps displays points of interest and basic location data in South Korea, but due to Korean government mapping regulations, it cannot provide full turn-by-turn navigation, accurate public transit routing, or real-time traffic updates. For navigation, utilize Naver Maps, which is the functional standard in Korea and offers greater accuracy for local transit.
For solo travelers, eSIM is distinctly superior-there’s no rental queue, no separate device to manage, and no battery dependency. For groups of 3 or more people sharing costs, a WiFi egg rental might offer a lower per-person daily cost, but you share a single device reliant on battery power. eSIM wins on convenience; an egg rental might be more cost-effective for groups splitting expenses.
Yes. Along the KTX Seoul-Busan corridor, LTE coverage is generally maintained throughout most of the journey. Tunnels typically cause brief signal interruptions, usually lasting under 30 seconds. Passengers can expect continuous connectivity for streaming and browsing during the 2.5-hour trip, with only minor exceptions in mountainous sections.
Yes. Bcengi TravelPass functions across multiple countries using the same eSIM profile and account balance. Japan and Taiwan have their own specific per-GB rates-please refer to the Japan eSIM page and Taiwan eSIM page for detailed information. The Korea-Japan two-country trip is one of the most common East Asia itineraries, and TravelPass handles both destinations without requiring SIM swaps.
Pay As You Go
from
$
1.81
/GB
$10
POPULAR
$25
$50
$100
Select your starting balance
Get your eSIM
→
💵 You add
$25
to your balance.
✈️ In
South Korea
you use
3GB
at
$
1.81
/GB
.
🌍
Thailand
3 months later -
3GB at $
1.81
/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 $
1.81
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
Seoul: You'll experience some of the world's best mobile connectivity here. Major districts like Myeongdong, Gangnam, and Hongdae have exceptionally strong 4G and 5G signals. The Seoul Metropolitan Subway is famous for its seamless coverage, providing reliable internet access on both platforms and inside moving trains, even deep underground.
Busan: South Korea's second city offers excellent network performance across its sprawling urban areas, including Haeundae Beach and Seomyeon. The Busan Metro system provides continuous connectivity, similar to Seoul's. While the signal is strong city-wide, you might notice slight fluctuations in some of the more mountainous areas on the city's outskirts.
Incheon: Connectivity is top-tier, starting from the moment you land at Incheon International Airport (ICN). The city, including the modern Songdo district, has robust 4G and 5G networks. Service is consistently strong on the Airport Railroad Express (AREX) and the Incheon Metro lines, ensuring a smooth connection into Seoul or around the city.
Daegu: As a major inland hub, Daegu boasts consistent and powerful mobile coverage throughout its downtown core and residential areas. The Daegu Metro offers reliable service underground, ensuring you can navigate and stay connected with ease. Indoor coverage in large shopping centers and buildings is generally very dependable.
Jeju Island: Coverage is excellent in major urban centers like Jeju City and Seogwipo, and along the main coastal roads popular with tourists. However, the signal can become weaker or intermittent in the island's rural interior, particularly when hiking in Hallasan National Park or visiting more remote natural attractions away from the coast.

Major Expressways: South Korea's primary highways, like Expressway No. 1 (Gyeongbu Expressway) between Seoul and Busan, offer consistent high-speed data coverage. However, routes crossing mountainous terrain, such as Expressway No. 50 (Yeongdong Expressway) through Gangwon province, may experience intermittent signal degradation or brief drops in more remote valleys and passes.
KTX High-Speed Rail: Connectivity on the KTX network is generally excellent, with reliable signal for most of the journey between major cities. Be prepared for frequent but brief signal interruptions as the train passes through the numerous tunnels common on all KTX lines, including the main Seoul-Busan route.
Mountainous Regions: Coverage is significantly reduced in the country's extensive mountain ranges, such as the Taebaek and Sobaek mountains. National Parks like Seoraksan and Jirisan have very spotty to non-existent service once you move away from visitor centers and onto hiking trails.
Tunnels and Remote Islands: While many modern tunnels on major routes are equipped with cellular repeaters, expect temporary signal loss when passing through older or longer road and rail tunnels. Similarly, while major islands like Jeju have strong networks, service on smaller, less populated islands off the southern and western coasts can be weaker and less reliable.
The DMZ Border Area: For security reasons, cellular service is heavily restricted and often completely unavailable in the civilian-access areas along the Demilitarized Zone (DMZ) in northern Gyeonggi and Gangwon provinces. Do not expect to have a signal when visiting observation posts or tour sites in this region.
Learn more about
South Korea
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
Data on the KT network is priced at $1.81 per gigabyte. There are no daily charges, minimum bundle requirements, or expiration dates; you simply pay for the data you consume.
No, this is not necessary. TravelPass installs as a secondary eSIM profile, allowing your physical SIM to remain in your device for your home number and calls. TravelPass is solely for data services.
Yes, on devices that are compatible. Generally, iPhone XS and newer models, Pixel 3 and newer, and Samsung Galaxy S20 models and later are supported. For details regarding your specific model, please check the compatibility page.
eSIM coverage is strong across all major cities, the KTX corridor, and Jeju Island. Signal quality may diminish in mountainous hiking areas (such as upper Hallasan and portions of Seoraksan) and while passing through long tunnels. Connectivity on the Seoul Metro and most suburban transit routes remains consistently reliable.
For a typical 7-day trip primarily in Seoul with moderate usage (navigation, KakaoTalk, social media), plan for 2-3 GB. If you regularly make video calls or stream content, an additional 1-2 GB would be advisable. At $1.81 per GB, a 3 GB data budget would cost approximately $1.81.
Practically, yes. Communication in Korea largely relies on KakaoTalk, similar to how other countries use WhatsApp or iMessage-but even more comprehensively. Restaurants, tour operators, accommodation hosts, and fellow travelers in Korea will generally expect to contact you via KakaoTalk. It is recommended to install the app and set up your account before your arrival.
It works partially. Google Maps displays points of interest and basic location data in South Korea, but due to Korean government mapping regulations, it cannot provide full turn-by-turn navigation, accurate public transit routing, or real-time traffic updates. For navigation, utilize Naver Maps, which is the functional standard in Korea and offers greater accuracy for local transit.
For solo travelers, eSIM is distinctly superior-there’s no rental queue, no separate device to manage, and no battery dependency. For groups of 3 or more people sharing costs, a WiFi egg rental might offer a lower per-person daily cost, but you share a single device reliant on battery power. eSIM wins on convenience; an egg rental might be more cost-effective for groups splitting expenses.
Yes. Along the KTX Seoul-Busan corridor, LTE coverage is generally maintained throughout most of the journey. Tunnels typically cause brief signal interruptions, usually lasting under 30 seconds. Passengers can expect continuous connectivity for streaming and browsing during the 2.5-hour trip, with only minor exceptions in mountainous sections.
Yes. Bcengi TravelPass functions across multiple countries using the same eSIM profile and account balance. Japan and Taiwan have their own specific per-GB rates-please refer to the Japan eSIM page and Taiwan eSIM page for detailed information. The Korea-Japan two-country trip is one of the most common East Asia itineraries, and TravelPass handles both destinations without requiring SIM swaps.