Blog

Japan eSIM and travel guides

English equivalents of every guide currently published in Vietnamese. Articles are shown only when their Vietnamese source is published.

Keep your Vietnamese number active while in Japan: how to receive OTP and Zalo without interruption

Keep your Vietnamese number active while in Japan: how to receive OTP and Zalo without interruption

Detailed instructions on how to maintain a Vietnamese SIM to receive bank OTP codes and application messages when coming to Japan. Tips for using eSIM in parallel to help keep the connection smooth.

Where to exchange yen to Japan at good rates: Compare airports, banks and 7-Eleven ATM withdrawals

Where to exchange yen to Japan at good rates: Compare airports, banks and 7-Eleven ATM withdrawals

Compare in detail the pros and cons of exchanging yen at domestic banks, airport currency exchange counters, and withdrawing money at Seven Bank ATMs in Japan so you can choose the right option.

Changes to Tax-free tax refund regulations in Japan from November 1, 2026: Detailed instructions for Vietnamese tourists

Changes to Tax-free tax refund regulations in Japan from November 1, 2026: Detailed instructions for Vietnamese tourists

Japan will officially convert the Tax-free tax refund mechanism from tax-free at stores to tax refund at border gates from November 1, 2026. Vietnamese tourists need to carefully learn about the new process to be proactive about their budget and time when traveling.

Kyoto 2 days: Actual itinerary, traveler's perspective and travel experience

Kyoto 2 days: Actual itinerary, traveler's perspective and travel experience

The 2-day Kyoto exploration itinerary is not rosy, helping you allocate time reasonably between famous destinations and handle transportation and network connection issues well.

Japanese eSIM for iPhone: how to choose a data package and important notes when using it

Japanese eSIM for iPhone: how to choose a data package and important notes when using it

Instructions for choosing the right eSIM package for iPhone, helping to keep in touch and travel confidently during your trip to Japan.

When going to Japan, should I use eSIM, wifi or physical SIM? Compare 3 popular network solutions

When going to Japan, should I use eSIM, wifi or physical SIM? Compare 3 popular network solutions

This article analyzes the pros and cons of eSIM, mobile wifi and physical SIM when traveling to Japan, helping you choose the solution that best suits your personal needs.

Living SIM for Vietnamese people in Japan: choose an economical package according to the needs of studying abroad, working, and having a calling number

Living SIM for Vietnamese people in Japan: choose an economical package according to the needs of studying abroad, working, and having a calling number

Instructions for choosing a SIM card to live in Japan for international students and workers. This article helps you distinguish between call SIM and data SIM to optimize monthly costs.

Taking a Japanese train for the first time: How to read the station sign, buy an IC card and change lines without fear of getting lost

Taking a Japanese train for the first time: How to read the station sign, buy an IC card and change lines without fear of getting lost

Detailed instructions to help you confidently travel by train in Japan from buying an IC card, reading the instructions at the station to smooth route changing skills.

How many GB of data do you need to go to Japan? Estimate table 2026

How many GB of data do you need to go to Japan? Estimate table 2026

How many GB do you need to go to Japan? Data estimate table based on number of days and network usage patterns, so as not to buy too much or run out in the middle of Tokyo.

Going to Japan during the summer festival season: stay connected so you don't get lost in the crowd

Going to Japan during the summer festival season: stay connected so you don't get lost in the crowd

The summer festival season in Japan is extremely exciting but also very crowded. Preparing a plan to stay connected to the internet will help you and your loved ones avoid getting lost in a sea of ​​people.

Osaka, Kyoto and Nara 4-day self-sufficient itinerary for first-time travelers

Osaka, Kyoto and Nara 4-day self-sufficient itinerary for first-time travelers

Explore the Kansai Golden Triangle with an optimal 4-day itinerary combining vibrant Osaka, ancient Kyoto and peaceful Nara. Detailed article with tips for moving and preparing for smooth Internet.

Pocket WiFi or eSIM when going to Japan: compare costs and which one to choose

Pocket WiFi or eSIM when going to Japan: compare costs and which one to choose

Compare Pocket WiFi and eSIM to Japan by real cost, battery, procedures and number of users — with quick menus for each situation.

How much is a reasonable price for an eSIM to Japan? How to calculate and avoid overpayment

How much is a reasonable price for an eSIM to Japan? How to calculate and avoid overpayment

The price of Japanese eSIM depends on the number of days, capacity and data type. How to calculate price per GB, read 'unlimited' traps and avoid hidden charges that make cheap packages expensive.

Detailed 5-day Tokyo itinerary for first-time visitors to Japan

Detailed 5-day Tokyo itinerary for first-time visitors to Japan

Suggested 5-day itinerary to fully explore Tokyo for first-time visitors to Japan. This article helps you optimize your time, travel conveniently and prepare for the best network connection.

Keep Vietnamese number when going to Japan: receive OTP as usual (2026)

Keep Vietnamese number when going to Japan: receive OTP as usual (2026)

When going to Japan, you still keep your Vietnamese number to receive bank OTP and calls. Instructions for installing a Japanese eSIM for data but the Vietnamese number still works, step by step, easy to follow.

Japanese eSIM for 7 days, how many GB package should I choose? (2026)

Japanese eSIM for 7 days, how many GB package should I choose? (2026)

Going to Japan for 7 days, how many GB should I buy for an eSIM? How to choose based on the number of days in advance, then estimate the data according to the style you use, avoid guessing or missing out.

Japanese eSIM cannot access the network: causes and solutions in order

Japanese eSIM cannot access the network: causes and solutions in order

Japanese eSIM installed but phone still has no network? List of common causes and solutions in order from simple to more detailed, for both iPhone and Android.

How to install Japanese eSIM on Android in detail (Samsung, Pixel, Oppo, Xiaomi)

How to install Japanese eSIM on Android in detail (Samsung, Pixel, Oppo, Xiaomi)

Install Japanese eSIM on Android phone step by step. Because each company has a different menu, the instructions follow Samsung, Pixel, Oppo and Xiaomi, including how to turn on roaming to get internet when you come to Japan.

How to install Japanese eSIM on iPhone in detail for newbies

How to install Japanese eSIM on iPhone in detail for newbies

Instructions to install Japanese eSIM for iPhone step by step: scan QR code, select data line, turn on roaming properly and handle common errors when new.

Japanese eSIM not accessing the network at the airport? 6 steps to handle immediately

Japanese eSIM not accessing the network at the airport? 6 steps to handle immediately

Japanese eSIM not online when you first arrived? 6 self-correcting steps: check data line, roaming, select signal, APN, reboot, before needing support.

How to effectively save battery and phone data when traveling to Japan

How to effectively save battery and phone data when traveling to Japan

Practical tips to help you optimize your internet capacity and preserve your phone's battery life during your journey to explore Japan.

How to install a Japanese eSIM in minutes: comprehensive guide

How to install a Japanese eSIM in minutes: comprehensive guide

General instructions for installing and activating a Japanese eSIM for newbies: what to prepare, general steps, and how to turn it on to have network when you arrive.

eSIM or physical SIM when going to Japan, which one to choose?

eSIM or physical SIM when going to Japan, which one to choose?

Compare eSIM and physical SIM for a trip to Japan: how to receive and keep a Vietnamese number, broadcast hotspot and supported device, with suggestions for choosing according to the situation.

Checklist for going to Japan on your own for the first time (full version 2026)

Checklist for going to Japan on your own for the first time (full version 2026)

Checklist to go to Japan on your own: documents, money, eSIM, app and things that need to be finalized 7 days, 24 hours in advance and upon landing. Watch so you don't forget anything.