eSIM for USA 1 month — Guide for Digital Nomads in North America

Traveling to the United States is an incredible experience, but arriving without data can ruin the first few moments: no Google Maps to leave the airport, no way to search for your hotel, no way to contact the person waiting for you. The solution is simple and has been the standard among experienced travelers for years: an eSIM for the United States.

In this guide, we tell you everything you need to know before traveling to the United States: what coverage you can expect in New York, Los Angeles, Miami, and Chicago, how many GB you really need, how to activate your eSIM, and the best connectivity tips from those who have already traveled there.

Spoiler: with PuraSim, you'll have local data from the moment your plane lands, with no contracts, no physical SIM, and no surprises on your bill.

Why do you need an eSIM for traveling to the United States?

International roaming from European and Latin American operators can cost you between 10 and 30 euros or dollars per day in the United States. A local eSIM gives you data at local prices, without absurd daily limits and with 4G or 5G speeds where the network allows it.

The difference between using roaming and a PuraSim eSIM is huge:

• Traditional roaming: fixed daily rate even if you barely use data, speed often limited to 3G, surprise bills upon return.
• PuraSim eSIM for the United States: you only pay for what you contract, full local data at the maximum available speed, activation in 5 minutes from anywhere.

In addition, with an eSIM, you can keep your original phone number active to receive calls and SMS, as the eSIM operates in a separate virtual slot. You don't have to choose between local connectivity and your usual number.

For the United States, where interstate highways have excellent coverage; the New York subway has 4G coverage on all lines since 2024, having stable data is especially important. Coverage in New York, Los Angeles, Miami, and Chicago is generally good, but there are areas where without a well-configured local eSIM, you would be blind.

Data coverage in the United States: what you can expect

Coverage in the United States varies considerably by area. In major urban and tourist areas (New York, Los Angeles, Miami, and Chicago), you'll find 4G and in some cases 5G networks. The experience is comparable to what you would have at home.

However, as in any destination, there are areas where the signal is more limited:

• Major cities: stable 4G/5G, perfect for streaming, browsing, and video calls.
• Rural and natural areas: coverage can drop to 3G or even lose signal in remote areas.
• Transportation: trains, ferries, and intercity buses have variable coverage; in cities generally good.

Key tip: Interstate highways have excellent coverage; the New York subway has 4G coverage on all lines since 2024

To maximize coverage in the United States, PuraSim uses local networks with the best available infrastructure through local roaming agreements. This means that your eSIM automatically connects to the network with the best signal at all times.

How many GB do you need for traveling to the United States?

This is the million-dollar question. The short answer: 30-50 GB for 30 days. The long answer depends on how you use your phone during the trip.

Here's a guide to real consumption per type of daily use:

• Basic use (maps, messages, occasional queries): 300-500 MB/day
• Moderate use (social media, photos, continuous browsing): 800 MB-1.5 GB/day
• Intensive use (remote work, streaming, video calls): 2-4 GB/day

For a 30-day trip to the United States, our recommendation is to contract 30-50 GB for 30 days. This is enough for most travelers with normal use: Google Maps running constantly, Instagram, WhatsApp, and some occasional searches.

If you're going to work remotely or plan to make frequent video calls, upgrade to the next plan. PuraSim plans allow you to top up data if you run out, so it's not a problem if you fall short: you won't suddenly lose coverage.

PuraSim offers specific plans for the United States with different data and duration options. See the complete collection in our plans for the United States.

How to activate your eSIM for the United States step-by-step

Activating a PuraSim eSIM is as simple as scanning a QR code. There's no need to go to a store, no need to wait for any shipment. The complete process takes less than 5 minutes:

1. Buy your plan at purasim.com for the United States. You will receive an email with the QR code.
2. Install the eSIM: go to Settings → Mobile Data → Add Data Plan (on iPhone) or Settings → Connections → SIM Manager (on Android).
3. Scan the QR code or manually enter the activation data.
4. Set up mobile data: make sure to select the PuraSim eSIM as the default data line.
5. Activate data roaming in the PuraSim eSIM settings (necessary for it to work on local networks).

You can install the eSIM before leaving home and configure it to activate automatically when you arrive in the United States, or activate it manually when you land.

Important: verify that your phone is eSIM compatible before purchasing. Most iPhones from the XS, Samsung Galaxy from the S20, and Google Pixel from the 3 are compatible. Check the complete list at purasim.com.

Local connectivity tips for the United States

Beyond contracting the right eSIM, there are some tricks that make a difference to stay connected throughout your trip to the United States:

• Download offline maps before leaving. Google Maps and Maps.me allow you to download maps of the entire United States or specific cities. This way, you can navigate without spending data when you are in areas with weak signal.
• Use airplane mode strategically. On long flights, trains, or ferries, activating airplane mode preserves battery and data. Connect to available Wi-Fi if there is any.
• WhatsApp and Telegram over data. Calls via these apps consume much less than an international call. Configure them for high-quality calls only when you are on Wi-Fi.
• Share connection carefully. The hotspot consumes data quickly, especially if there are other devices connected (laptop, tablet). Use it only when necessary.

And the most important tip: Interstate highways have excellent coverage; the New York subway has 4G coverage on all lines since 2024

With these tricks and a good PuraSim data plan, your trip to the United States will have the connectivity you need without unnecessary expenses.

Frequently asked questions

Escrito por Marc González Sáez Fundador de PuraSim y especialista en eSIM y conectividad para viajeros. Lleva años ayudando a viajar conectado por todo el mundo sin pagar de más por el roaming, y prueba personalmente las eSIM en cada destino antes de recomendarlas.