Last spring, I landed in New York with a backpack, a laptop, and two eSIMs installed on my phone. Over the next six weeks, I traveled across the United States-from Manhattan coffee shops and Boston campuses to Los Angeles coworking spaces and Chicago hotels-testing Simzy and Airalo, two popular travel eSIM providers.
As someone who relies on mobile connectivity for work, navigation, video calls, and staying connected while traveling, I wanted to find out which provider actually delivers the best experience for visitors to the United States.
If you're a tourist exploring America, an international student starting a semester abroad, or a remote worker hopping between cities, choosing the right eSIM can save you money, eliminate roaming charges, and keep you connected from the moment you land.
Here's what I found.
Why eSIMs Are Essential for USA Travelers and Students
The United States is one of the easiest countries to visit and one of the most frustrating places to buy a traditional SIM card.
Airport SIM kiosks often charge premium prices. Local carriers may require identification, store visits, or lengthy activation processes. International roaming from your home provider can quickly become expensive.
eSIMs solve all of those problems.
You can purchase a eSIM plan online before departure, install it in minutes, and connect immediately after landing in the U.S.
But not all eSIMs are built the same.
For tourists, unlimited data might sound attractive. For students and long-term visitors, features like local calls, texting, hotspot support, and plan flexibility often matter much more.
That's where Simzy and Airalo take very different approaches.
Simzy vs Airalo: Understanding the Key Difference
Before comparing speeds and features, it's important to understand how each provider approaches connectivity.
Airalo Airalo focuses primarily on prepaid data packages.
Users can purchase plans such as:
- 1GB
- 3GB
- 5GB
- 10GB
- 20GB
- Unlimited options in selected destinations
Once the data allowance is consumed, travelers can top up directly through the app.
This model works well for short trips and travelers who want complete control over spending.
Simzy Simzy offers a more comprehensive mobile experience.
Depending on the plan, users may receive:
- High-speed mobile data
- Local U.S. phone numbers
- Voice calls
- SMS texting
- Hotspot functionality
- Flexible travel and student plans
Rather than functioning solely as a data provider, Simzy aims to replace a traditional SIM card entirely.
For students and long-term travelers, that difference can be significant.
Why Students Need More Than Just Data
Many international students assume they'll only need mobile internet.
That assumption usually lasts about a week.
Once classes begin, students often need a phone number for:
- University registration
- Banking verification
- Housing applications
- Delivery services
- Internship applications
- Campus communications
- Emergency contacts
A data-only eSIM works perfectly for WhatsApp and social media, but many services in the United States still rely heavily on SMS verification and phone calls.
This is where Simzy has a clear advantage.
With plans that include local calling and texting, students can communicate more easily without juggling multiple services or purchasing an additional SIM card later.
Coverage Across the United States
The United States presents unique connectivity challenges.
Major cities offer excellent network coverage, but performance can vary dramatically once you leave urban areas.
New York City Both Simzy and Airalo delivered excellent speeds throughout Manhattan, Brooklyn, and Queens.
Navigation, streaming, and video calls worked without issues.
Boston Coverage remained reliable around universities, business districts, and public transportation hubs.
Chicago Both providers maintained strong connectivity in downtown areas and surrounding neighborhoods.
Los Angeles Excellent performance across most tourist and business locations.
Road Trips and Rural Areas
Coverage in rural America depends largely on the underlying local carrier network.
While both providers performed well in populated regions, travelers heading into national parks or remote destinations should download maps offline regardless of provider.
Setup and Activation Experience
One area where both providers excel is simplicity.
- Simzy Setup
- Purchase your plan online.
- Receive activation details instantly.
- Scan the QR code.
- Install the eSIM.
- Connect when you arrive.
- Airalo Setup
- Download the app.
- Choose a U.S. plan.
- Install the eSIM.
- Enable data roaming.
- Start using data immediately.
Most users can complete activation in less than five minutes.
Which eSIM Is Better for USA Travelers?
Choose Simzy If:
- You're studying in the United States.
- You need a local U.S. phone number.
- You want calls, texts, and data in one plan.
- You're staying for several weeks or months.
- You want a complete replacement for a traditional SIM card.
Choose Airalo If:
- You mainly need mobile data.
- You're taking a short vacation.
- You prefer smaller prepaid packages.
- You already use internet-based calling apps.
- You want complete control over data spending.
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