Belgium
Brazil
France
The Smart Way for
Korean Travelers
to Stay Connected Abroad
Avoid expensive daily roaming fees from SKT, KT, or LG U+. Get instant 5G/4G internet anywhere with Cellesim eSIM.
💳 Pay securely with international cards. Your Korean SIM stays active for KakaoPay, Toss, and Bank OTP verification.
Why Korean Travelers Switch to eSIM
Before Boarding
Domestic data plans stop or become prohibitively expensive the moment you land in Japan, Vietnam, or the USA
Local carriers charge high daily fees for international data passes with limited data caps per day
Don't waste holiday time hunting for physical local SIM cards at airport booths and showing your passport
Pocket Wi-Fi (Dosirak) is an extra device to charge and carry. Cellesim is 100% digital
Popular Plans for Korean Travelers
Choose your destination and get connected instantly.
Cellesim vs. Korean Carriers
Why pay for expensive SKT, KT, or LG U+ roaming?
| Features | Cellesim eSIM | SKT / KT / LG U+ Roaming |
|---|---|---|
| Cost (10-Day Trip) | ~₩12,000 Total Pay only for what you use |
₩50,000 - ₩120,000+ Expensive daily passes |
| Korean Number Active (+82) | ✓ Stays Active Receive Bank / App OTPs for Free |
Restricted Requires complex activation |
| KakaoPay / Toss / Bank ID | ✓ Optimized Full 2FA SMS support |
Potential Delay Delayed SMS on foreign networks |
| Overage Control | 100% Prepaid Zero hidden bill shock |
Auto-Renewal Bills Charges continue daily |
Fair Comparison
Why Cellesim is the best choice for your journey
| Comparison | Cellesim | Airalo | Holafly |
|---|---|---|---|
| Hotspot Support | ✓ Supported Share with family |
Supported | ✕ Restricted Often No Hotspot allowed |
| Local Value (₩) | Best Local Rates Optimized for KR Market |
USD Standard | Expensive Daily Caps |
| Customer Support | ✓ Global Expert Travel Specialized |
Tickets | Chat |
How It Works
Choose Destination
Select the package that fits your itinerary from 200+ global options.
Install Before Departure
Scan the QR code and set up your profile using your home Wi-Fi in Korea.
Land & Connect
Land, switch data line to Cellesim, and you’re online instantly. No SIM swapping.
💡 Pro Tip: Install your eSIM 1–2 days before departure using your home or office Wi-Fi in Korea. Don’t wait until you land!
Smart Tools for Your Journey
Everything you need to prepare for a digital-first trip from Korea.
Is Cellesim Right for You?
Perfect if you:
- ✓ Traveling outside South Korea (Japan, Vietnam, USA, etc.)
- ✓ Use apps like KakaoPay, Toss, & Naver Maps
- ✓ Want to avoid high daily roaming bill surprises
Not ideal if you:
- ✕ Your phone does not support eSIM technology
- ✕ Rely only on hotel Wi-Fi 24/7
Not sure if your phone supports eSIM?
Check compatibility here →Trusted by 50,000+ International Travelers
"Worked perfectly in Tokyo. I could receive KakaoBank verification for my payments while having 5G data. Way cheaper than SKT's daily pack!"
"Way cheaper than roaming packs for Vietnam. Used it for 10 days in Da Nang, coverage was excellent. Saved over ₩30,000."
"Setup was so easy. Bought it in Seoul, installed it at home, and was online the moment I landed in New York. Perfect for keeping in touch."
Our Commitment
"We built Cellesim because roaming ruined our own trips. We wanted something simple and fair. That's why our eSIM experience is designed for travelers, with zero hidden surprises."
Frequently Asked Questions
For Korean Travelers Abroad
Will my Korean phone number stay active for KakaoPay/Toss? ↓
Can I still receive Bank OTP SMS? ↓
Is it cheaper than SKT or KT roaming packs? ↓
Can I share my internet (Hotspot) with others? ↓
Travel Smarter.
Stay Connected anywhere.
For Korean travelers, an international eSIM is no longer optional — it’s the smartest way to save money and stay connected.