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Smart Connectivity for American Travelers

The Smart Way for American Travelers to Stay Connected Abroad

Avoid expensive $10 - $12 daily roaming fees from Verizon or AT&T. Get instant 5G/4G internet anywhere with Cellesim eSIM.

💳 Pay securely with US cards or Apple Pay. Your US SIM stays active for Zelle, WhatsApp, and Bank OTP verification (Chase, BoA).

🛡️ No roaming bill shock
📲 Keep your (+1) number
Instant Activation
🌍 200+ Destinations

Why American Travelers Switch to eSIM Before Taking Off

🌍

Domestic plans like Verizon TravelPass or AT&T IDP charge up to $12 every single day

$

Local carriers often throttle your speed after a tiny high-speed data cap while abroad

Don't waste vacation time in airport queues hunting for physical local SIM cards in Europe or Asia

🎒

Pocket Wi-Fi is an extra device to charge and carry. Cellesim is 100% digital on your existing phone

➡️ Savvy US travelers now choose Cellesim instead.

Popular Plans for American Travelers

Choose your destination and get connected instantly.

Most Popular
🇪🇺

Europe (Regional)

One plan for 42 countries

From $4.50
View Plans
Fast 5G
🇬🇧

United Kingdom

London city and beyond

From $5.00
View Plans
🇯🇵

Japan

City trip ready data

From $5.50
View Plans
Nearby
🇲🇽

Mexico

Perfect for the beach

From $4.20
View Plans
🇹🇭

Thailand

Island hopping high speed

From $4.20
View Plans
🇮🇹

Italy

Reliable history tour coverage

From $4.50
View Plans
🇫🇷

France

City break ready

From $4.50
View Plans
🇹🇷

Turkey

Reliable city & coast data

From $4.00
View Plans

Cellesim vs. American Carriers

Why pay for expensive Verizon or AT&T roaming packs?

Features Cellesim eSIM Verizon / AT&T Roaming
Cost (10-Day Trip) ~$15 Total
Pay only for what you use
$100 - $120+
Fixed high daily fees
US Number Active (+1) ✓ Stays Active
Receive Bank OTP SMS for Free
Restricted
Risk of high hidden data charges
Zelle / Chase / Amex ✓ Optimized
Full 2FA SMS support
Potential Delay
Delayed SMS on foreign networks
Data Control 100% Prepaid
Zero hidden bill shock
Auto-Renewal Bills
Daily charges continue automatically
➡️ American travelers save over 85% vs standard international roaming packs.

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 US Market
Global Standard Expensive Daily Caps
Customer Support ✓ Global Expert
Travel Specialized
Tickets Chat

How It Works

1

Choose Destination

Select the package that fits your itinerary from 200+ global options.

2

Install Before Departure

Scan the QR code and set up your profile using your home Wi-Fi in the USA.

3

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 the USA. Don’t wait until you land!

Is Cellesim Right for You?

Perfect if you:

  • Traveling outside the USA (Europe, Japan, Mexico, etc.)
  • Use apps like Zelle, Apple Pay, PayPal & WhatsApp
  • Want to avoid $10/day roaming bill surprises abroad

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 Rome and Paris. I could receive Chase verification codes for my purchases while having high-speed data. Way cheaper than Verizon's $10/day!"

David B. — Euro Summer Trip

"Way cheaper than AT&T's roaming packs for Thailand. Used it for 12 days in Phuket, coverage was 5G almost everywhere. Saved over $100."

Sarah J. — Vacation in Thailand

"Setup was so easy. Bought it in NYC, installed it at home, and was online the moment I landed in Tokyo. Perfect for Google Maps and Zelle."

Michael S. — Business trip to Japan
🌍🤝

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."
— Cellesim Founders
Travelers helping travelers

Frequently Asked Questions

For American Travelers Abroad

Will my US phone number stay active for WhatsApp/Banking?
Yes. Cellesim acts as a secondary data line. Your primary US SIM (Verizon, AT&T, T-Mobile) stays active for calls and SMS. Your WhatsApp and banking apps (Chase, Amex) remain tied to your original +1 number automatically.
Can I still receive Bank OTP SMS or use Zelle?
Yes! As long as you keep your physical US SIM enabled in your cellular settings, you can receive incoming SMS verification codes for Chase, BoA, or Zelle while using Cellesim for data.
Is it cheaper than Verizon or AT&T roaming packs?
Absolutely. US operators charge high daily fees ($10 - $12/day). Cellesim provides local rates, often saving you up to 90% on total data costs compared to standard international day passes.
Can I share my internet (Hotspot) with others?
Yes! Unlike some competitors like Holafly, Cellesim eSIMs support data tethering/hotspots, making it perfect for sharing data with family or using your laptop during your trip.

Travel Smarter. Stay Connected anywhere.

For American travelers, an international eSIM is no longer optional — it’s the smartest way to save money and stay connected.

Cellesim: アメリカ旅行用eSIM