eSIM for Peruvians Traveling to Japan — No roaming in Asia

If you're traveling from Peru to Japan, you already know that roaming with your local operator can be a very unpleasant surprise upon your return: bills for tens or even hundreds of dollars/euros for a few days of data. There's a much smarter solution: an eSIM specifically for Japan.

In this guide, we'll explain exactly how it works, how much you can save compared to roaming with your Peruvian operator, and how to activate your PuraSim eSIM before boarding your flight.

With PuraSim, you get local data in Japan from the moment you land, at local prices, with no commitments, and without changing your physical SIM.

Roaming from Peru to Japan: what it really costs

Peruvian operators offer international roaming packages for Japan, but prices are rarely competitive. Depending on your operator, a day of data in Japan can cost you between 15-25 USD/EUR per day.

Let's look at a real example: if your trip to Japan 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 Japan, that same usage 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 speed is cut
• You need to activate the service before leaving (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 Japan

An eSIM (embedded SIM) is a digital SIM that lives inside your phone. There's no physical card to insert: you download the operator's profile via a QR code, and you're good to go. Your phone can have several eSIMs installed simultaneously and switch between them in seconds.

For travelers from Peru to Japan, the process is as follows:

1. You purchase your data plan on purasim.com before leaving
2. You receive the QR code by email
3. You install the eSIM on your phone from home (in 5 minutes)
4. Upon landing in Japan, you activate the eSIM and immediately have local data
5. 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 shop upon arrival at Japan's airport. You arrive and already have internet working.

How many GB do you need for Japan?

For a trip from Peru to Japan, our recommendation is 15-20 GB for 14 days. This is enough for most common uses: Google Maps throughout the day, WhatsApp with family and friends in Peru, Instagram, occasional searches, and some occasional video calls.

Breakdown of typical daily consumption:

• Google Maps actively navigating: ~150 MB/day
• WhatsApp with messages and photos: ~100 MB/day
• Instagram and social media (without 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 content in real-time, consider a higher plan. PuraSim plans have top-up available if you run out, so you can always extend.

Tip: The Nikkei (Japanese-Peruvian) community ensures Lima has frequent flights to Japan; Narita airport has excellent signal upon arrival.

How to activate the eSIM before your flight

The best thing about PuraSim eSIMs is that you can have it ready before leaving Peru. The installation process takes about 5 minutes and only requires WiFi:

1. Check compatibility: make sure your phone supports eSIM (iPhone XS or higher, Samsung Galaxy S20+, Google Pixel 3+ and many more).
2. Buy your plan on purasim.com. Select Japan as the destination and the GB plan you need.
3. 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.
4. Configure the eSIM: give it a recognizable name (e.g., "PuraSim Japan") and make sure it's configured for data but NOT for calls or SMS (you keep those on your Peruvian SIM).
5. Activate upon arrival: on the plane, you can have the eSIM installed but inactive. Upon landing in Japan, go to Settings → Mobile data and activate the PuraSim eSIM.

In less than 5 minutes after landing, you will have full data in Japan without even leaving the airport.

Tips for travelers from Peru to Japan

Beyond connectivity, here are some specific tips for travelers from Peru:

• Download everything before leaving: offline maps of Tokyo, Kyoto, Osaka, and Hiroshima on 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 Japan for security reasons. Inform them of your trip to avoid having your card blocked at the most inconvenient time.
• WhatsApp will work perfectly: with the active eSIM, you can call and chat with family and friends in Peru without additional cost for international calls.
• Save documents offline: scan your passport, travel insurance, and bookings and save them on your phone. If there's a moment without data, you'll still have access.

And remember: The Nikkei (Japanese-Peruvian) community ensures Lima has frequent flights to Japan; Narita airport has excellent signal upon arrival.

With PuraSim connected, your trip from Peru to Japan starts seamlessly from the very first moment.

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.