- Data
- 20 GB
- Validity
- 30 days
$32
- 5G
- Hotspot
Best eSIM for Japan in 2026
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Quick answer
Japan has fast, reliable mobile networks, and an eSIM is a popular alternative to renting a pocket Wi-Fi device. For most travellers a 10 GB plan over two weeks is comfortable for maps, messaging and occasional video; heavy users or anyone working remotely should look at 20 GB or unlimited. Data-only plans are usually enough unless you specifically need a Japanese phone number.
Networks and coverage
Japan’s major operators are NTT Docomo, KDDI au, SoftBank and Rakuten Mobile. Travel eSIMs typically ride on one or more of these networks. Docomo and au have the widest coverage nationally, which matters if you are heading beyond the big cities. SoftBank is strong in urban areas, and Rakuten Mobile has expanded its own network and roaming arrangements.
Coverage in Tokyo, Osaka, Kyoto, Nagoya and Fukuoka is excellent, including on the Shinkansen and in stations. Rural Japan, high mountains and some remote islands can have gaps, so download offline maps if you plan to hike or drive far from the cities.
City and regional notes
- Tokyo - near-continuous coverage, including the metro and both airports.
- Osaka and Kyoto - strong coverage across the cities and the Kansai region.
- Sapporo and Hokkaido - good in the cities; thinner in the national parks.
- Hiroshima and Fukuoka - reliable urban coverage in western Japan.
- Shinkansen - generally usable, with brief gaps in long tunnels.
What to check before you buy
- Data-only vs. voice. Most travel eSIMs are data-only. If you need to make or receive calls on a Japanese number, look for a plan that includes voice.
- Hotspot. Useful if you are travelling with a laptop or a second device.
- Speed tiers. Some plans cap data or reduce speed after a threshold.
- Activation timing. Set the eSIM up before you fly and enable it on arrival at Narita, Haneda or Kansai airport.
Practical tips
Japan is cash-friendly but increasingly digital, and having data makes navigation far easier. Keep your home SIM active for authentication codes, and set the eSIM as the line for mobile data. Pocket Wi-Fi can still suit groups or heavy multi-device use, but an eSIM avoids carrying and charging a second device.
Top Japan eSIM options
One representative plan per provider, chosen by lowest price per gigabyte. This is not a ranking; it reflects documented plan data.
HolaflyUnlimited- Data
- Unlimited
- Validity
- 7 days
$24.15
- 5G
- Hotspot
- Data
- 20 GB
- Validity
- 30 days
$33.60
- 5G
- Hotspot
- Data
- 20 GB
- Validity
- 30 days
$30.40
- 5G
- Hotspot
- Data
- 20 GB
- Validity
- 30 days
$35.20
- 5G
- Hotspot
- Data
- 20 GB
- Validity
- 30 days
$32
- 5G
- Data
- 20 GB
- Validity
- 30 days
$32
- 5G
- Data
- 20 GB
- Validity
- 30 days
$32
- 5G
- Data
- 20 GB
- Validity
- 30 days
$32
- 5G
- Data
- 20 GB
- Validity
- 30 days
$32
- 5G
Japan eSIM comparison
| Provider | Data | Duration | Price | Network | 5G | Hotspot | Phone number | SMS | Activation | Last verified | Check price |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Airalo | 1 GB | 7 days | $4.50 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Airalo | 3 GB | 15 days | $11 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Airalo | 5 GB | 30 days | $16 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Airalo | 10 GB | 30 days | $22 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Airalo | 20 GB | 30 days | $32 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Airalo | Unlimited | 30 days | $45 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| eSIM.DOG | 1 GB | 7 days | $4.50 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| eSIM.DOG | 3 GB | 15 days | $11 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| eSIM.DOG | 5 GB | 30 days | $16 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| eSIM.DOG | 10 GB | 30 days | $22 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| eSIM.DOG | 20 GB | 30 days | $32 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| eSIM.io | 1 GB | 7 days | $4.50 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| eSIM.io | 3 GB | 15 days | $11 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| eSIM.io | 5 GB | 30 days | $16 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| eSIM.io | 10 GB | 30 days | $22 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| eSIM.io | 20 GB | 30 days | $32 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| eSIM.io | Unlimited | 30 days | $45 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| Holafly | Unlimited | 7 days | $24.15 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Holafly | Unlimited | 15 days | $37.95 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Holafly | Unlimited | 30 days | $51.75 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Holafly | Unlimited | 60 days | $85.10 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Maya eSIM | 1 GB | 7 days | $4.50 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| Maya eSIM | 3 GB | 15 days | $11 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| Maya eSIM | 5 GB | 30 days | $16 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| Maya eSIM | 10 GB | 30 days | $22 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| Maya eSIM | 20 GB | 30 days | $32 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| Nomad | 1 GB | 7 days | $4.73 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Nomad | 3 GB | 15 days | $11.55 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Nomad | 5 GB | 30 days | $16.80 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Nomad | 10 GB | 30 days | $23.10 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Nomad | 20 GB | 30 days | $33.60 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Nomad | Unlimited | 15 days | $34.65 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Nomad | Unlimited | 30 days | $47.25 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Roamic | 1 GB | 7 days | $4.50 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| Roamic | 3 GB | 15 days | $11 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| Roamic | 5 GB | 30 days | $16 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| Roamic | 10 GB | 30 days | $22 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| Roamic | 20 GB | 30 days | $32 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| Roamic | Unlimited | 30 days | $45 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| Saily | 1 GB | 7 days | $4.27 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Saily | 3 GB | 15 days | $10.45 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Saily | 5 GB | 30 days | $15.20 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Saily | 10 GB | 30 days | $20.90 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Saily | 20 GB | 30 days | $30.40 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Ubigi | 3 GB | 15 days | $12.10 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Ubigi | 5 GB | 30 days | $17.60 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Ubigi | 10 GB | 30 days | $24.20 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Ubigi | 20 GB | 30 days | $35.20 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | Yes | No | No | Within 30 days | Check price | |
| Yesim | 1 GB | 7 days | $4.50 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| Yesim | 3 GB | 15 days | $11 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| Yesim | 5 GB | 30 days | $16 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| Yesim | 10 GB | 30 days | $22 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| Yesim | 20 GB | 30 days | $32 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price | |
| Yesim | Unlimited | 30 days | $45 | NTT Docomo, KDDI au, SoftBank, Rakuten Mobile | Yes | No | No | No | Within 30 days | Check price |
Prices are shown in the currency the provider lists. Always confirm the current price with the provider.
Compare all plans
Filter by provider, data, price and hotspot. Results update instantly.
- Data
- 1 GB
- Validity
- 7 days
$4.50
- 5G
- Hotspot
- Data
- 3 GB
- Validity
- 15 days
$11
- 5G
- Hotspot
- Data
- 5 GB
- Validity
- 30 days
$16
- 5G
- Hotspot
- Data
- 10 GB
- Validity
- 30 days
$22
- 5G
- Hotspot
- Data
- 20 GB
- Validity
- 30 days
$32
- 5G
- Hotspot
AiraloUnlimited- Data
- Unlimited
- Validity
- 30 days
$45
- 5G
- Hotspot
HolaflyUnlimited- Data
- Unlimited
- Validity
- 7 days
$24.15
- 5G
- Hotspot
HolaflyUnlimited- Data
- Unlimited
- Validity
- 15 days
$37.95
- 5G
- Hotspot
HolaflyUnlimited- Data
- Unlimited
- Validity
- 30 days
$51.75
- 5G
- Hotspot
HolaflyUnlimited- Data
- Unlimited
- Validity
- 60 days
$85.10
- 5G
- Hotspot
- Data
- 1 GB
- Validity
- 7 days
$4.73
- 5G
- Hotspot
- Data
- 3 GB
- Validity
- 15 days
$11.55
- 5G
- Hotspot
- Data
- 5 GB
- Validity
- 30 days
$16.80
- 5G
- Hotspot
- Data
- 10 GB
- Validity
- 30 days
$23.10
- 5G
- Hotspot
- Data
- 20 GB
- Validity
- 30 days
$33.60
- 5G
- Hotspot
NomadUnlimited- Data
- Unlimited
- Validity
- 15 days
$34.65
- 5G
- Hotspot
NomadUnlimited- Data
- Unlimited
- Validity
- 30 days
$47.25
- 5G
- Hotspot
- Data
- 1 GB
- Validity
- 7 days
$4.27
- 5G
- Hotspot
- Data
- 3 GB
- Validity
- 15 days
$10.45
- 5G
- Hotspot
- Data
- 5 GB
- Validity
- 30 days
$15.20
- 5G
- Hotspot
- Data
- 10 GB
- Validity
- 30 days
$20.90
- 5G
- Hotspot
- Data
- 20 GB
- Validity
- 30 days
$30.40
- 5G
- Hotspot
- Data
- 3 GB
- Validity
- 15 days
$12.10
- 5G
- Hotspot
- Data
- 5 GB
- Validity
- 30 days
$17.60
- 5G
- Hotspot
- Data
- 10 GB
- Validity
- 30 days
$24.20
- 5G
- Hotspot
- Data
- 20 GB
- Validity
- 30 days
$35.20
- 5G
- Hotspot
- Data
- 1 GB
- Validity
- 7 days
$4.50
- 5G
- Data
- 3 GB
- Validity
- 15 days
$11
- 5G
- Data
- 5 GB
- Validity
- 30 days
$16
- 5G
- Data
- 10 GB
- Validity
- 30 days
$22
- 5G
- Data
- 20 GB
- Validity
- 30 days
$32
- 5G
YesimUnlimited- Data
- Unlimited
- Validity
- 30 days
$45
- 5G
- Data
- 1 GB
- Validity
- 7 days
$4.50
- 5G
- Data
- 3 GB
- Validity
- 15 days
$11
- 5G
- Data
- 5 GB
- Validity
- 30 days
$16
- 5G
- Data
- 10 GB
- Validity
- 30 days
$22
- 5G
- Data
- 20 GB
- Validity
- 30 days
$32
- 5G
RoamicUnlimited- Data
- Unlimited
- Validity
- 30 days
$45
- 5G
- Data
- 1 GB
- Validity
- 7 days
$4.50
- 5G
- Data
- 3 GB
- Validity
- 15 days
$11
- 5G
- Data
- 5 GB
- Validity
- 30 days
$16
- 5G
- Data
- 10 GB
- Validity
- 30 days
$22
- 5G
- Data
- 20 GB
- Validity
- 30 days
$32
- 5G
- Data
- 1 GB
- Validity
- 7 days
$4.50
- 5G
- Data
- 3 GB
- Validity
- 15 days
$11
- 5G
- Data
- 5 GB
- Validity
- 30 days
$16
- 5G
- Data
- 10 GB
- Validity
- 30 days
$22
- 5G
- Data
- 20 GB
- Validity
- 30 days
$32
- 5G
eSIM.ioUnlimited- Data
- Unlimited
- Validity
- 30 days
$45
- 5G
- Data
- 1 GB
- Validity
- 7 days
$4.50
- 5G
- Data
- 3 GB
- Validity
- 15 days
$11
- 5G
- Data
- 5 GB
- Validity
- 30 days
$16
- 5G
- Data
- 10 GB
- Validity
- 30 days
$22
- 5G
- Data
- 20 GB
- Validity
- 30 days
$32
- 5G
Best eSIM for Japan by trip type
These categories are based on documented plan attributes, not subjective scores. Verify the details before buying.
Best cheap eSIM for Japan
The lowest-priced plan in our dataset for travellers who only need a little data.
- Data
- 1 GB
- Validity
- 7 days
$4.27
- 5G
- Hotspot
Best eSIM for short trips to Japan
A short validity window and a modest allowance keeps the cost down for a brief visit.
- Data
- 3 GB
- Validity
- 15 days
$10.45
- 5G
- Hotspot
Best eSIM for longer stays in Japan
Look for a plan with at least 30 days of validity and a larger allowance.
- Data
- 10 GB
- Validity
- 30 days
$20.90
- 5G
- Hotspot
Best eSIM for heavy data use in Japan
For streaming and tethering, a larger fixed plan or an unlimited package usually works out better per gigabyte.
- Data
- 20 GB
- Validity
- 30 days
$30.40
- 5G
- Hotspot
Best unlimited eSIM for Japan
Unlimited plans trade metering for a flat rate, subject to fair-use policies.
AiraloUnlimited- Data
- Unlimited
- Validity
- 30 days
$45
- 5G
- Hotspot
Best eSIM for hotspot users in Japan
These plans list tethering as supported, which matters if you are sharing data with a laptop.
- Data
- 20 GB
- Validity
- 30 days
$30.40
- 5G
- Hotspot
Japan connectivity overview
Mobile networks listed for Japan: NTT Docomo, KDDI au, SoftBank, Rakuten Mobile. Coverage and speeds vary by operator and region, and the network your eSIM uses depends on the provider.
How to install an eSIM for Japan
- Install the eSIM while you have Wi-Fi, before you travel.
- Set the travel eSIM as your line for mobile data.
- Keep your home SIM active for calls and verification codes.
- Switch the eSIM on when you arrive in Japan so the plan's validity starts when you can use it.
Japan eSIM FAQ
Is a data-only eSIM enough for Japan?
For most travellers, yes. Data-only eSIMs cover maps, messaging apps and browsing. You only need a voice number if you must make or receive traditional calls.
Does an eSIM work on the Shinkansen and in rural Japan?
Japan's networks are strong in cities and along main rail routes, but coverage can narrow in remote mountains and some rural areas.
Which Japanese networks do eSIMs use?
Travel eSIMs typically use NTT Docomo, KDDI au, SoftBank or Rakuten Mobile. The available network depends on the provider and plan.
Destinations
Related guides
- SetupHow to Install an eSIMA step-by-step walkthrough of installing a travel eSIM by QR code or manually, plus how to switch it on when you arrive.
- DevicesHow to Use an eSIM on iPhoneHow eSIM works on iPhone, which models support it, and how to add, label and manage travel eSIMs in Settings.
- DevicesHow to Use an eSIM on AndroidA device-agnostic Android eSIM guide covering compatibility checks, QR installation and dual-SIM data settings.
- BasicseSIM vs Physical SIMThe practical differences between eSIM and a physical travel SIM, including activation, cost, flexibility and device support.
- BasicsHow Does an eSIM Work?What an eSIM actually is, how it connects to local networks when you travel, and why it can avoid roaming charges.
Ready to compare prices?
Plan details and prices change. Check the provider's current listing for your dates and data needs.