Japan Travel Tech: SIM, Apps & More

Curious about using technology while traveling in Japan?

Thinking it’s all a breeze in that "high-tech Japan" for travel on the go? The reality might surprise you: Japan isn't the futuristic wonderland many imagine.

Japan travel has some idiosyncrasies, to be sure, and they can occasionally be frustrating.

Add to that the necessity or desire to stay connected these days, and you’re probably wondering what’s the best way to travel in Japan in terms of using the right tech.

We’ve got you!

The Truth About Tech in Japan

Japan presents an interesting paradox for travelers. 

While Japanese trains run with precision timing and vending machines seem to appear on every corner, you'll still find yourself dealing with ATMs that close at night and restaurants that only accept cash. And, as a Japan local, I can tell you that we even still use FAX machines here in Japan!!!

Understanding this mix of convenience and occasional technological conservatism helps set realistic expectations for your trip.

Internet Connectivity Options for Your Japan Trip

Staying connected in Japan requires some advance planning. 

Despite what you might have heard, free public WiFi isn't as widespread as in many other countries. Sure, you'll find it in major train stations and some coffee shops, but relying solely on public WiFi can leave you stranded when you most need directions or translation help.

Your main options for staying connected include eSIM, rental SIM cards, pocket WiFi devices and international roaming plans. Each has its advantages, and choosing between them depends on your specific needs and travel style.

International Roaming vs. Getting a New SIM

Check with your mobile provider before coming to Japan. Specifically, see what their rates are for using data and making calls while you’re in Japan. 

Too high for your wallet? We hear you!

SIM Cards & eSIM for Use in Japan

Compared to international roaming charges from your current provider at home, it’s usually cheaper to get a SIM card or eSIM, paying per day for data-only or data and calling combined.

The plus side? Well, the price, of course.

Downside? Unless you have a MacBook and thus can access iMessage while abroad, you’ll likely not be able to receive text messages in Japan. Same goes for anyone calling your phone number. But if you’re okay with that, read on.

Also, your phone needs to be unlocked to use a SIM card or eSIM.

Most smartphones these days have capability for eSIM. If yours does, great, you’re in luck! The options are always changing when it comes to eSIM for Japan, but we’ve had success with Airalo and AloSIM. Saily and Mobal are also eSIM options that our clients have used with decent results.

If your phone can’t support eSIM, the other option is to swap out your SIM card for a temporary SIM while in Japan. (just be sure to keep your regular SIM in a safe place, so that you can switch back after leaving Japan to go home)

Japanese SIM cards come in various flavors, from data-only to full voice and data services. But here's what many guides won't tell you: getting a voice-enabled SIM card as a tourist can be complicated due to local regulations. Data-only SIMs are much easier to obtain and usually sufficient for most travelers.

Registration requirements vary by provider, but most tourist-oriented SIM cards now offer straightforward activation processes. Some even let you register before arriving in Japan, making airport pickup a breeze.

Pocket WiFi: The Alternative

PocketWiFi are portable devices create a personal WiFi hotspot you can carry around. 

They're particularly useful if you're traveling with multiple devices or as a group. The main drawback? You'll need to keep another device charged and remember to carry it with you.

Battery life typically lasts a full day of normal use, but heavy navigation or video streaming can drain it faster. Some rentals come with spare batteries, which can be a lifesaver during long days of sightseeing.

We definitely recommend bring battery packs with you anyway, as your phone could drain as you’re moving about for the day while traveling in Japan, and charging in an electrical outlet isn’t always convenient.

Mobile Apps Worth Installing for Japan

Your phone can become an invaluable travel tool with the right apps installed. 

Navigation apps prove essential given that Japanese addresses can be confusing even for locals. Translation apps help bridge the language barrier, though they're not perfect.

But let's be realistic about apps: while they're helpful, they shouldn't become a technological crutch that keeps you from engaging with the local culture. 

Sometimes putting the phone away and asking for directions can lead to memorable interactions.

Navigation Solutions

Japanese cities can be labyrinthine, and even Tokyo natives sometimes get lost in the massive train stations. 

While Google Maps works well in Japan, several local apps offer advantages for specific situations, particularly when navigating train systems. These are constantly changing, and some apps are only available in Japanese.

Some apps excel at finding the fastest routes between stations, while others help you locate specific exits in sprawling subway complexes. The key is knowing which tool suits each situation.

Speaking of Google Maps, check out our article on Japan’s star rating system for restaurants, attractions, etc — it’s probably different from what you’re used to.

Translation Technology

Translation apps have improved significantly, but they still have limitations. 

Google Translate and DeepL are popular. New translations apps are coming out all the time, too.

They work well for basic transactions and reading signs, but complex conversations require more nuanced communication. Japanese people generally appreciate the effort to communicate, even if it means mixing technology with gestures and basic phrases.

Money Matters – Cash & Credit Cards in Japan

Japan still runs largely on cash, which surprises many visitors. 

While credit card acceptance has improved in recent years, you'll still encounter many situations where cash is essential. Electronic payment systems exist but often cater more to residents than tourists to Japan.

ATMs that accept international cards aren't as common as you might expect, and some shut down outside business hours. Planning your cash needs becomes an important part of daily travel logistics.

Prepaid Cards Such as Suica & ICOCA

You’ll also want to get a prepaid (and reloadable) transportation card, such as Suica or ICOCA. 

These cards work on most local trains and buses, in many taxis, at most convenience stores and at many other shops and attractions. You simply tap the card at the station gates (when entering and exiting both, so that the fare is automatically calculated) or at the cash register.

The Welcome Suica, as of this article’s publication date, is sold at major airports (such as Tokyo Narita & Tokyo Haneda) and big JR train stations like Tokyo, Shinagawa, etc. ICOCA is sold at Osaka Kansai Airport and at many stations in the Kansai (Osaka/Kyoto/Nara) region. Mind you, in Japan you can only use cash to purchase these cards.

iPhone users don’t have to wait. You can go to your Apple Wallet, search for transportation cards, and add ICOCA or Suica virtually. That way, you can use your credit card to pay for and top up the Suica or ICOCA as you go. Then use your iPhone to tap at the gate every time you enter & exit the transportation system, or at the cash register.

Digital Photography Considerations

Japan offers countless photo opportunities, but some locations have specific rules about photography. 

Many temples and shrines in Japan restrict tripod use, and some shopping areas (and Kyoto rresidential areas) limit photography entirely. Understanding these rules helps avoid awkward situations.

Storage management becomes crucial with all the photos you'll likely take. Cloud backup can be challenging with limited data plans, so bringing extra storage devices might be worthwhile.

Social Media Access

Most social media platforms work normally in Japan, but some local services might interest you. 

Japanese users often share travel tips and restaurant recommendations on platforms that overseas visitors rarely know about. 

The big one here is called LINE, and you can download the English version of this app. That way, you can connect with people you meet in Japan, and you can also connect with hotels & restaurants (some restaurants even have ordering through LINE).

Power & Charging: What’s the Electricity Situation in Japan?

Japan uses 100V electricity with Type A sockets (two flat pins), similar to but slightly different from North American standards. 

While many modern devices handle this voltage difference without issues, checking your equipment specifications before traveling makes sense.

Privacy & Data Security

Public WiFi networks in Japan, like anywhere else, can pose security risks. 

If you have enough data, it might be best not to use hotel or cafe WiFi, and use data instead. 

Or you can use a VPN, especially when accessing sensitive information like online banking. Japan generally respects user privacy, but taking basic precautions remains wise.

Digital Etiquette

Japanese culture has specific expectations about phone use in public spaces. 

Understanding these unwritten rules helps avoid social faux pas. Many restaurants and public baths post signs requesting phones be silenced or not used at all.

Etiquette in general is important when traveling in Japan. Check out our article with a more in-depth focus on etiquette in Japan.

Above All Else: Enjoy Your Trip to Japan!

With all this said, it’s best not to get too hung up on tech.

After all, you’re on vacation! And you’re in Japan, in one of the world’s most interesting and exciting travel destinations!

So plan ahead for tech, then try to enjoy the moment as much as possible. Maybe even disconnect and enjoy some “slow travel” or “digital detox” in Japan for at least portions of the holiday?

And if you have any questions or concerns about planning your Japan trip, we’re always here to help. Feel free to book your FREE Japan travel consultation, using the scheduling tool below:

Frequently Asked Questions

What's the best way to stay connected in Japan? For solo travelers, a data-only eSIM SIM card usually works best. Groups typically benefit more from sharing a pocket WiFi device.

How much data do I really need? Some travelers find 2-3GB per week sufficient for normal use, including maps and translation apps. Others prefer more data. Check out what you normally use in your daily life, then factor in 

Can I use my phone from home in Japan? Check if your phone is unlocked and compatible with Japanese networks. Most modern phones work fine.

Are Japanese SIM cards expensive? Prices vary but generally run $30-60 for two weeks of data service.

Should I rent a pocket WiFi device at the airport? Airport rentals often cost more. Booking in advance online usually saves money.

Will my credit cards work in Japan? Many cards work, but always carry cash. Some places still don't accept cards.

Do I need a VPN in Japan? While not strictly necessary, a VPN adds security when using public WiFi.

Can I buy a SIM card after arriving in Japan? Yes, but selection and prices might be limited compared to pre-booking.

How reliable is public WiFi in Japan? Coverage varies widely. Don't count on finding free WiFi when you need it most. Also, prying eyes might be watching!

What apps are essential for Japan travel? Navigation apps, translation tools & public transportation apps prove most useful.