China mainland & Japan & South Korea Unlimited Data eSIM

Technical Specs

• Pre-Activation Before Trip: 180 Days
• Usage Starts: Upon landing in country
• Phone WIFI Hotspot Usage: Yes
  
• Data Exit Country: Hong Kong
• Networks: KR - SKTelecom 5G; CN - China Unicom 5G; JP - KDDI 5G, SoftBank 5G
• Supported Countries: South Korea, China mainland, Japan

Stay Connected Anywhere in China, Japan, and South Korea with a Multi-Country eSIM

Traveling across East Asia has never been easier with a multi-country eSIM covering China Mainland, Japan, and South Korea. With a Totally Untethered eSIM, you can stay connected throughout your trip without needing multiple SIM cards or paying expensive international roaming fees.

Our eSIM connects to major local mobile networks in all three countries, providing fast and reliable mobile data for navigation, booking tours, sharing travel moments, and finding restaurants and attractions. Because the eSIM installs digitally, you can activate your plan in minutes and start using mobile data as soon as you arrive.

Major Cities and Regions Covered

Your multi-country eSIM works in major cities, towns, and tourist areas with strong mobile coverage across all three countries, including:

China Mainland:

• Beijing
• Shanghai
• Guangzhou
• Shenzhen
• Xi’an
• Chengdu
• Hangzhou

Japan:

• Tokyo
• Osaka
• Kyoto
• Hiroshima
• Sapporo
• Fukuoka
• Nagoya

South Korea:

• Seoul
• Busan
• Incheon
• Daegu
• Gyeongju
• Jeju Island

Whether you’re exploring historic streets in Beijing, enjoying Tokyo’s vibrant neighborhoods, or hiking in Jeju, your eSIM keeps you connected across borders.

Perfect for Culture, Technology, and Scenic Adventures

These three countries offer a mix of modern cities, cultural landmarks, and natural beauty. Reliable mobile data helps travelers navigate, plan excursions, and stay connected while enjoying highlights such as:

• The Great Wall, Forbidden City, and Terracotta Warriors in China
• Tokyo Tower, Kyoto temples, and Mount Fuji in Japan
• Gyeongbokgung Palace, Busan beaches, and Jeju Island volcanoes in South Korea

While remote mountains or rural regions may occasionally have limited signal, most cities, towns, and tourist hotspots across China, Japan, and South Korea have reliable mobile network coverage.

Ideal for Tourists, Business Travelers, and Digital Nomads

A multi-country eSIM is ideal for travelers who need seamless connectivity across borders:

Tourists can access maps, travel guides, and booking platforms while exploring cultural and historic sites.

Business travelers can stay connected for work, meetings, and communication while moving between cities.

Digital nomads and remote workers can maintain reliable connectivity while working from hotels, cafés, or coworking spaces in all three countries.

Since the eSIM activates digitally, there is no need to swap physical SIM cards when traveling between China, Japan, and South Korea.

Popular Destinations Where Your Multi-Country eSIM Works

China Mainland: Beijing, Shanghai, Xi’an, Guangzhou, Shenzhen, Chengdu, Hangzhou
Japan: Tokyo, Kyoto, Osaka, Hiroshima, Sapporo, Fukuoka, Nagoya
South Korea: Seoul, Busan, Incheon, Daegu, Gyeongju, Jeju Island

From exploring historic landmarks to modern cityscapes and natural scenery, your eSIM keeps you connected throughout your East Asian adventure.

Why Choose a Multi-Country eSIM Instead of Roaming?

Using international roaming through your home carrier across multiple countries can quickly become costly. A multi-country eSIM offers a simpler, more affordable solution for seamless connectivity.

Benefits include:

• No international roaming fees
• Instant digital activation
• No physical SIM card required
• Fast 5G data speeds
• Easy setup before or after arriving in any of the three countries

With Totally Untethered, you can explore China, Japan, and South Korea with confidence knowing you’ll have reliable high-speed mobile data wherever your journey takes you.