If you're traveling from Peru to the United States, you already know that roaming with your local carrier can be a very unpleasant surprise upon your return: bills of tens or even hundreds of dollars/euros for a few days of data. There's a much smarter solution: a dedicated eSIM for the United States.
In this guide, we'll explain exactly how it works, how much you can save compared to roaming with your Peruvian carrier, and how to activate your PuraSim eSIM before you board the plane.
With PuraSim, you get local data in the United States from the moment you land, at local prices, with no commitments, and without changing your physical SIM.

Roaming from Peru to the United States: what it really costs
Peruvian carriers offer international roaming packages for the United States, but prices are rarely competitive. Depending on your carrier, a day of data in the United States can cost you between 15-25 USD/EUR per day.
Let's look at a real example: if your trip to the United States lasts 10 days and you use data moderately (maps, messages, social media), with traditional roaming you could pay between 150 and 250 euros/dollars just for connectivity. With a PuraSim eSIM for the United States, the same consumption would cost a fraction.
In addition to the cost, roaming has other limitations:
- Reduced speed, often to 3G or even 2G
- Very low daily data cap before your speed is cut off
- You need to activate the service before you leave (and pay for it even if you don't use it)
A PuraSim eSIM eliminates all these problems: you pay once for the GB you need, you get real 4G/5G speed, and you activate it only when you need it.
How an eSIM works for the United States
The eSIM (embedded SIM) is a digital SIM that lives inside your phone. There's no physical card to insert: you download the carrier profile via a QR code, and you're ready. Your phone can have several eSIMs installed simultaneously and switch between them in seconds.
For travelers from Peru to the United States, the process is as follows:
- You buy your data plan on purasim.com before you leave
- You receive the QR code by email
- You install the eSIM on your phone from home (in 5 minutes)
- Upon landing in the United States, you activate the eSIM and you already have local data
- Your Peruvian SIM continues to work for receiving calls and SMS
No need to go to any store. No need to queue. No need to look for a phone store when you arrive at the US airport. You arrive and you already have working internet.

How many GB do you need for the United States?
For a trip from Peru to the United States, our recommendation is 15-20 GB for 10 days. This is enough for most common uses: Google Maps all day, WhatsApp with family and friends in Peru, Instagram, occasional searches, and an occasional video call.
Breakdown of typical daily consumption:
- Google Maps actively navigating: ~150 MB/day
- WhatsApp with messages and photos: ~100 MB/day
- Instagram and social media (no video): ~300 MB/day
- Searches and websites: ~100 MB/day
- Estimated total: 600-700 MB/day for moderate use
If you're going to work remotely, make frequent video calls, or upload real-time content, consider a higher plan. PuraSim plans have top-up available if you run out, so you can always extend.
Tip: The direct Lima-Miami flights from LATAM and American are the most popular; have your American eSIM configured before leaving Lima
How to activate the eSIM before your flight
The best thing about PuraSim eSIMs is that you can have them ready before leaving Peru. The installation process takes about 5 minutes and only requires WiFi:
- Check compatibility: confirm that your phone supports eSIM (iPhone XS or higher, Samsung Galaxy S20+, Google Pixel 3+ and many more).
- Buy your plan on purasim.com. Select the United States as your destination and the GB plan you need.
- Install the eSIM: open the email with the QR code and go to your phone's Settings to scan the code and download the profile.
- Configure the eSIM: give it a recognizable name (e.g., "PuraSim United States") and make sure it's configured for data but NOT for calls or SMS (keep those on your Peruvian SIM).
- Activate upon arrival: on the plane, you can have the eSIM installed but inactive. Upon landing in the United States, go to Settings → Mobile Data and activate the PuraSim eSIM.
In less than 5 minutes after landing, you'll have full data in the United States without even leaving the airport.

Tips for travelers from Peru to the United States
Beyond connectivity, here are some specific tips for travelers from Peru:
- Download everything before you leave: offline maps of New York, Miami, Los Angeles, and Las Vegas in Google Maps, playlists on Spotify, Netflix episodes for the flight. You won't have data during the first few hours of your flight.
- Notify your bank: many Peruvian banks block transactions in the United States for security reasons. Inform them of your trip to avoid having your card blocked at the worst possible moment.
- WhatsApp will work perfectly: with the eSIM active, you can call and talk to family and friends in Peru without additional cost for international calls.
- Save documents offline: scan your passport, travel insurance, and reservations and save them on your phone. If there's a moment without data, you'll still have access.
And remember: The direct Lima-Miami flights from LATAM and American are the most popular; have your American eSIM configured before leaving Lima
With PuraSim connected, your trip from Peru to the United States begins seamlessly from the very first moment.
Frequently asked questions
Can I continue using my Peruvian number in the United States?
Yes. The PuraSim eSIM operates in a separate virtual slot from your physical Peruvian SIM. You will still receive calls and SMS on your usual number. To call numbers in Peru, use WhatsApp or similar through the eSIM.
How long does the eSIM for the United States last?
PuraSim plans have a specified duration (7, 10, 15, 30 days). The countdown begins from the first use of data, not from installation. You can install it days before without it starting to count.
Can I buy the eSIM for the United States once I'm already there?
Yes, as long as you have WiFi access. You can buy and activate the eSIM from the airport or hotel WiFi. However, we recommend doing it before you leave to avoid relying on WiFi upon arrival.
Does the PuraSim eSIM for the United States include calls?
PuraSim data plans are data-only plans. For local calls in the United States or international calls to Peru, use WhatsApp, Telegram, or FaceTime, which work through the eSIM's data at no additional cost.
What do I do if I have problems with the eSIM in the United States?
PuraSim support is available 24/7. If the eSIM does not connect automatically, try manually selecting the network in Settings → Mobile Data → Network. If the problem persists, contact support via chat or email with your order number.
Activate your eSIM before you leave and arrive connected from the very first moment.
View eSIM plans →

