Japan eSIM | Unlimited 4G/5G · from $6.29/day

Name: Japan eSIM Unlimited
Brand: AeroSims
SKU: JP_5_Daily
Price: 7.92 USD
Availability: InStock

Japan Data eSIM — AeroSims prepaid 4G/5G travel data

Japan eSIM Unlimited

$7.92 $8.80

Japan eSIM Unlimited

$7.92 $8.80

1–90 days

USD

4G/5G — NTT Docomo · SoftBank · au by KDDI

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Before you buy Is my phone eSIM-ready?Daily allowance for Japan eSIM check & speed test Compare with Holafly Compare with Airalo

Your eSIM locks to the first phone it's installed on and can't be moved later — install it on the phone you'll travel with.

Instant QR deliveryEmailed in seconds

Secure SSL checkoutEncrypted & safe

No passport requiredActivate in 2 minutes

Unlimited dataNo roaming fees, no contracts

Secure SSL checkout — PayPal, or debit/credit card via PayPal

All durations & prices

Travel days	Total (USD)	Per day
1	$7.92	$7.92
3	$23.28	$7.76
5	$38.02	$7.60
7	$52.11	$7.44
10	$72.07	$7.21
14	$96.47	$6.89
21	$133.06	$6.34
30	$188.58	$6.29
45	$282.86	$6.29
60	$377.15	$6.29
90	$565.72	$6.29

Network & Coverage

Stay connected across every corner of Japan

Your eSIM connects to the local networks of NTT docomo, Rakuten Mobile, au by KDDI and SoftBank — for fast, reliable 4G/5G from the neon streets of Tokyo and the temples of Kyoto to the snows of Hokkaido and the slopes of Mount Fuji.

NTT Docomo

Japan's largest network with the widest 5G reach — your main connection across cities, towns and rural regions alike.

SoftBank

Excellent high-speed coverage throughout Tokyo, Osaka and major hubs — ideal for streaming and video calls.

au by KDDI

Strong, dependable speeds on your eSIM's local partner network.

Popular destinations covered

Tokyo Osaka Kyoto Yokohama Nagoya Sapporo Fukuoka Hiroshima Nara Okinawa

From crossing Tokyo's Shibuya scramble and bowing to Nara's deer to wandering Kyoto's temples or watching cherry blossoms beneath Mount Fuji, your unlimited data keeps maps, translation and ride-hailing apps running wherever Japan takes you.

Will my Japan eSIM work beyond Tokyo in smaller towns?+

Yes. Your eSIM runs on Japan's leading carriers, which provide solid 4G/5G across Osaka, Kyoto, Sapporo and the smaller towns and countryside. Signal may thin out deep in the mountains or on remote islands but reconnects automatically as you return to populated areas.

Can I share my Japan eSIM as a hotspot?+

Yes — tethering is fully supported, so you can share your unlimited connection with a laptop, tablet or a travel companion's phone — perfect for working from a Tokyo café or keeping the group online on a day trip to Kyoto. One thing worth knowing: hotspot traffic counts towards the same 5 GB daily full-speed allowance, and tablets or laptops get through it faster than a phone. If you plan to keep several devices online all day, one of our data packages with a fixed GB volume is usually the better fit.

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Instant QR Code

Delivered in seconds

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No Passport Needed

Setup in 2 minutes

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24 / 7 Support

Day and night

What's included

Everything you need in Japan

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Unlimited Data, Every Day

No data cap, and nothing is ever switched off. 5 GB per day at full speed in Japan, then a reduced speed for the rest of that day — full speed returns the next day.

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4G/5G Network

Connect to our local partner network in Japan. Your phone connects automatically the moment you land.

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Instant QR Delivery

Your eSIM arrives by email within seconds of purchase. No waiting, no shipping, no physical SIM card needed.

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No Passport Required

Buy and activate without any ID verification. Full privacy, zero bureaucracy — just scan and connect.

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Works on Arrival

Your eSIM activates the moment you land in Japan. Your days count only starts when you first connect.

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30-Day Money-Back

Changed your mind? As long as the eSIM has not been installed, we refund you in full within 30 days — no reason needed.

How it works

Connected in
3 simple steps

Buy your eSIM

Choose your travel days and checkout in 60 seconds. Your QR code is emailed instantly.

Scan & install

Open your phone settings → Cellular → Add eSIM. Scan the QR code. Done in under 2 minutes.

Arrive & connect

Land in Japan, turn on your eSIM, and enjoy unlimited data from the first second.

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Ready before you land

Your eSIM waits in your phone. The moment you touch down in Japan, you're online — no airport SIM kiosks, no queues, no roaming surprises.

Starting from

$7.92/day

Unlimited 4G/5G · Japan

Works with everything

Perfect for all your apps in Japan

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WhatsApp & Calls

Crystal clear quality

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Google Maps

Navigate anywhere

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Instagram & TikTok

Share instantly

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Uber & GO Taxi

Book on the go

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Netflix & YouTube

Stream in HD

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Mobile Hotspot

Share with others

Why AeroSims

The smarter choice for Japan

Feature

AeroSims

Local SIM

Other eSIM

Truly Unlimited Data

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Instant QR Delivery

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No Passport / ID Required

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Works Before You Arrive

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30-Day Money-Back Guarantee

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24 / 7 Live Support

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Frequently asked questions

Everything you need to know about your Japan eSIM

Is the data truly unlimited? +

Yes — there is no data cap and your connection is never switched off. Like every unlimited travel eSIM, the plan carries a daily full-speed allowance: in Japan that is 5 GB per day. Beyond it you stay online at a reduced speed (384 kbps) for the rest of that day, and full speed returns automatically the next day. Hotspot traffic counts towards the same allowance. We publish the exact figure for all 181 destinations — see our daily allowance by country.

When does my eSIM activate? +

Your eSIM activates the moment you first connect in Japan. Your days don't start until you're there — so you can install it weeks before travel with no waste.

Which devices are compatible? +

Any unlocked eSIM-compatible device: iPhone XS and later, Google Pixel 3+, Samsung Galaxy S21+, and most modern Android flagships. Check Settings → Cellular → Add eSIM to confirm.

How do I install the eSIM? +

After purchase, check your email for the QR code. On your phone: Settings → Cellular (or Mobile Data) → Add eSIM → Scan QR Code. It takes under 2 minutes. Full step-by-step instructions are included in the email.

What if I need help? +

Our team is available 24/7 via live chat at aerosims.com — day or night, before or during your trip.

Could my internet speed ever change? +

Yes — once you pass the daily full-speed allowance, which in Japan is 5 GB per day. After that, data keeps working at a reduced speed (384 kbps) for the rest of that day and returns to full speed the next day. Nothing is cut off, and hotspot traffic counts towards the same allowance. This tier is set by the local operator, not by AeroSims. Full details for every destination: daily allowance by country. If you prefer a guaranteed volume at full speed, our data packages give you a fixed number of GB.

Can I extend it if I stay longer? +

Often yes. While the eSIM is still active, open your personal eSIM page — the link is in your delivery email — and you will see there whether extra days can be added to your plan. If they can't, another eSIM for the same destination arrives by email and installs alongside the one you already have.

Ready to explore Japan?

Pick your plan above and get instant access — your eSIM arrives by email in seconds.

From $7.92/day · 4G/5G · Unlimited · 30-day guarantee

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