eSIM Japan Internet 5 GB – 30 days | Mobired Hello Japan

3G 4G 30 days Instant activation
Networks :
KDDI Corporation NTT DoCoMo Rakuten Mobile, Inc.
Special offer : ✨ Special offer : Immediate activation • No commitment • 7/7 support
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Order anytime
Buy when it suits you.
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Installation help
Support available if you get stuck.
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Dual SIM compatible
Keep your primary number.
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No surprise fees
The price is displayed before payment.
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No physical SIM card required
No need to change SIM cards.

How it works

1

Purchase

Order your eSIM plan in just a few clicks. Secure and fast payment.

2

Reception

You will receive an email with a QR code within 2 minutes of your purchase.

3

Installation

Add an eSIM to your phone by scanning the QR code.

4

Connexion

Activate destination data and enjoy your 4G/5G connection!

5 GB is enough for:

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Browsing
Frequent GPS navigation during the trip
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Email
Daily messages and emails
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Social Networks
Photos, stories and social media are moderated
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Internet
Web research, translations and bookings

Why choose our eSIM for your trip?

In Japan, roaming charges can skyrocket within minutes: a map, a message, a few searches… and the bill quickly adds up. No need to scramble for a pocket Wi-Fi hotspot or search for a shop upon arrival to avoid unpleasant surprises.

With this Japan eSIM, you get 5GB of data for 30 days, directly on your compatible smartphone. Activate it in moments and keep your travel budget under control, while using your essential apps: directions in Tokyo, translations at restaurants, train reservations, or sharing your Kyoto photos. Simple, convenient, designed for a month-long stay.

4G/5G coverage

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Performance

Enjoy an eSIM in Japan designed for smooth browsing, uninterrupted streaming and fast downloads throughout your stay.

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Use

Work from Japan with ease by checking your emails, joining video conferences and staying operational remotely, wherever you are.

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Price

Control your data budget from the moment you book your trip to Japan, with a clear price and no unpleasant surprises on your return bill.

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Coverage

With NTT Docomo, Rakuten Mobile and others, enjoy reliable 3G, 4G and 5G coverage to stay connected throughout your trip to Japan.

Frequently Asked Questions

Questions about this plan

Switch to “emergency mode”: activate data saver, disable automatic updates (apps + system), turn off 4G/5G photo/video backup, and limit social media to messaging. Download maps and directions over Wi-Fi (Google Maps), prioritize text messaging over sending media, and reserve mobile data only for GPS, tickets/QR codes, and translations.

Calibrate your usage: keep the eSIM for urgent tasks (emails, chat, authentication, sending small files) and use Wi-Fi for heavy tasks (uploading files, cloud backups). For calls, use audio only and turn off video if possible; close background apps and avoid large attachments when on the go. Tip: prepare documents offline in advance (PDFs, notes) to minimize repeated access.

Lower the video quality (ideally 480p), disable autoplay, and avoid looping in full screen. Download content you want to watch later (playlists/podcasts/episodes) over Wi-Fi and reserve your data for short clips. On iPhone/Android, enable "Data Saver" and limit mobile data usage in video apps: this is often the most cost-effective setting.

General questions

Yes, if the plan allows it. Check the plan details.

Yes, if your device supports eSIM and is unlocked.

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