How to get mobile internet in Japan in 2026?

To get mobile internet in Japan, travelers can choose from options like an eSIM, a local SIM card, international roaming, a pocket WiFi rental, or simply rely on free WiFi.

This guide covers everything travelers need to know about internet access in Japan, including available services and how each one works.

Unlimited data. Peace of mind.

Make sure you have travel data that's there when you need it most.

Buy an eSIM for Japan

How fast is the internet in Japan?

Japan consistently ranks among the countries with the world’s fastest internet services for both fixed broadband and mobile.

With extensive 5G mobile coverage throughout Japan, average data speeds over 150 Mbps, and Hikari fiber plans reaching 1 Gbps, the country’s internet service is pretty solid for both locals and travelers.

How to get internet in Japan as a traveler

To get internet in Japan as a traveler, you can opt to use international roaming, local SIM cards, free WiFi hotspots, pocket WiFi devices, or a Holafly eSIM for Japan.

Let’s see what each one offers so you can choose a service that suits you best.

Data roaming

Data roaming in Japan is a reliable option for travelers to stay connected during a trip, but it’s also one of the most expensive options.

Verizon and AT&T, both popular US mobile providers, charge $2.05 per MB, which means you pay $2,050 for 1 GB.

You could use the Verizon TravelPass or AT&T International Day Pass, both of which cost $12 for unlimited data for a day, but that can add up quickly. One week means you spend $84, so while still a reliable option, it’s an expensive one.

eSIM for Japan

An eSIM is a great way to avoid roaming charges and makes it easy for travelers to use their cell phones in Japan.

The only thing you need is an eSIM-compatible phone for the eSIM to work and a Holafly eSIM for Japan plan, which offers unlimited data for up to 90 days.

The activation process is quite easy: simply scan a QR code to get internet access in Japan as soon as you land. Plus, you get 5G data speeds, up to 1 GB of hotspot data per day, and extensive coverage in all of Japan.

SIM card for Japan

If you have a SIM-only phone, you can get a SIM card for Japan as soon as you arrive at the airport or at a convenience store like 7-Eleven.

In Japan, you’ll find two types of plans: data-only or data-and-voice, from carriers such as Mobal, Sakura Mobile, IllJmio, and b-Mobile.

Before we jump into the plan details, keep in mind that you’ll need a free SIM slot to use any of these and an unlocked phone to ensure they work with local networks.

Here’s a quick overview of the different plans available by Mobal, Sakura Mobile, IllJmio, and b-Mobile for travelers:

Renting pocket WiFi

If you’re traveling to Japan with a group of friends or need to share internet with several devices, renting a pocket WiFi is a reliable option, but the pricing is usually quite high.

Travelers should rent these before their trip and choose between airport pickup and hotel delivery, which usually incurs additional costs.

The same applies when returning the device, but there’s an option to drop it off at the airport so you don’t increase the final pocket WiFi price.

Plus, insurance is something most travelers forget, which can easily increase the final cost by $15 to $40.

To rent a pocket WiFi in Japan, two reliable options are Ninja Wi-Fi and Telecom Square WiFiBOX, and here’s what to expect from their available plans:

• Ninja Wi-Fi: Ranges from ¥440 to ¥2,200 (~$2.80 to $13.99 USD) per day, depending on whether you choose a limited or unlimited data plan. 
• Telecom Square WiFiBOX: Ranges from ¥300 to ¥1,390 (~$1.90 to $8.85 USD per day, depending on whether you choose a limited or unlimited data plan. 

Instead of renting a pocket WiFi in Japan, travelers can get a monthly eSIM subscription with Holafly Plans, including up to unlimited data, unlimited hotspot data, and 5G speeds, without paying for insurance or daily fees.

Free WiFi hotspots in Japan

Free WiFi is available in most public spaces throughout urban Japan, from airports to train stations and convenience stores.

• All major airports, such as Haneda, Narita, and Kansai, offer free WFi, which is great for getting an Uber, buying an eSIM, or simply checking social media before leaving. 
• Most boutique hotels, chains like Starbucks and McDonald’s, and most coffee shops have free WiFi. However, this isn’t common in traditional inns like ryoken, so double-check this before booking.
• SoftBank Free WiFi Passport is a service available to travelers, with over 400,000 SoftBank hotspots across Japan. 

Free WiFi can help you save money or get online when you need it. However, public networks may be unsecured, and some impose time limits, making them less convenient as your only source of internet access throughout your trip.

Comparing different mobile internet options in Japan

Now that travelers know the available options for staying connected in Japan, let’s dive a little deeper and compare them using specific factors such as safety, speed, reliability, and value for money.

eSIM is a clear favorite, with the Holafly eSIM for Japan covering all these key factors. 

Roaming and pocket WiFi devices are good options for coverage and data speeds, but pricing is the main deal-breaker, especially with pocket WiFi devices, as insurance and delivery fees also apply.

Free WiFi is a good option for quick tasks, such as checking social media or replying to a message, but it’s the least reliable, especially for security.

Lastly, SIM cards are reliable options, but since only Mobil offers international shipping, travelers prefer services that ensure an internet connection from the moment they land.

Get uninterrupted internet in Japan with Holafly 

If you’re traveling to Japan for a few days or a whole month, the internet is a must-have for various reasons, such as translating, navigating, and booking the best things to do in Japan.

A good option is to get a Holafly eSIM for Japan, which offers unlimited data, 5G speeds, and customizable plans valid for up to 90 days.

For longer stays, Holafly Plans works better, as this monthly eSIM subscription also works in over 160 destinations, so you don’t need to worry about switching plans when arriving in a new destination.

The Always On perk also includes 1 GB of monthly backup data, so travelers can explore Japan even when their plan is running low.

Unlimited data. Peace of mind.

Make sure you have travel data that's there when you need it most.

Buy an eSIM for Japan

Visiting other destinations close to Japan? Learn how to get mobile internet there:

• Mobile internet in China
• Mobile internet in Hong Kong
• Mobile internet in Vietnam
• Mobile internet in Thailand
• Mobile internet in Singapore

FAQ

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Julio Osuna

English Content Writer

I first started my content creation journey as a freelancer in 2019, before connecting with Holafly in 2021. At Holafly, my travel and tech interests come together in one place as I craft high-quality articles about the eSIM and related markets. My content aims to help travelers stay connected, wherever they are.

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