Japan eSIM | KDDI

Up to 30GB
4G/5G Speed
Up to 10 Days
Data Only
Use by 170 days
Use in Japan
Japan eSIM | KDDI
Supported Countries
- 🇯🇵 Japan
Description
What’s Included?
- 3 – 30GB (Unlimited data at 128kbps)
- 4G/5G speed (up to 1Gbps)*
- 4 – 10 days of service from activation (natural day)
- For use in Japan
- Hotspot/Tethering enabled
- How do eSIMs work? Check our eSIM setup guide
- Purchase your eSIM plan, QR code will be sent instantly via email
- Scan the QR code to add the eSIM to your eSIM compatible phone
- eSIM must connect to supported network and be used within 170 days of purchase
- Get a free Ice Fruit frozen snack in Japan with your KDDI eSIM
- Redeem by 31 January 2026
- Limited time only, while stocks last.
- Voucher will be sent on a seperate email
Thing’s to know
- The eSIM’s provider is KDDI (local Japanese operator)
- Plan starts when eSIM connects to supported network
- No ID registration needed
- Service days are calculated according to Japan Standard Time (GMT+9) and reset at 00:00 (midnight) each day, not based on a 24-hour period.
- No calls or texts included (data-only eSIM)
- Coverage on KDDI
- Compatible with unlocked eSIM-enabled phones (with EID numbers)
Important Notes
- Adding the eSIM outside the coverage country may result in a “failed activation,” which is normal. The eSIM will activate once you reach your destination.
- Once the eSIM is installed it cannot be transferred or deleted – no refunds will be provided for installation error or accidental delete
- Haven’t received your eSIM? Check your junk mail or reach out to us
- Check network coverage in your intended travel areas; Coverage issues are outside our control and we do not offer refunds
Japan eSIM by KDDI
- Ranked #1 by Opensignal in October 2024, KDDI leads Japan’s telecom market, surpassing NTT Docomo and Softbank. Known for its extensive coverage in both urban and rural areas, KDDI offers unmatched network performance, ensuring seamless connectivity across Japan’s diverse landscapes.
Troubleshooting Guide
eSIM not working? Don’t stress! Follow this guide to get you up and running.
- Disable VPN and any secondary SIM/eSIM lines (for dual SIM phones)
- Connect to Wi-Fi and disable airplane mode before scanning the eSIM
- Confirm mobile data is sourced from our eSIM (i.e. the correct eSIM profile is selected)
- Turn data roaming on (Android: select all network)
- Wait up to 10 minutes for activation to occur
- APN: uad5gn.au-net.ne.jp | Username: au@uad5gn.au-net.ne.jp | Password: au OR:
APN: uno.au-net.ne.jp | Username: 685840734641020@uno.au-net.ne.jp | Password: KpyrR6BP (Android: select manually)
Android Only: Authentication Type: CHAP - Turn off automatic network selection and manually choose from the list below.
- Restart your phone and/or turn on and off airplane mode
- Still not working? Chat with us live, we’re here to help!
We are not affiliated with the network provider. Data allowance may change without notice; check our website for updates.
Network Operator(s) List
- Japan [KDDI]
*Access to KDDI’s 5G network is available in designated 5G coverage areas when using a 5G-compatible device. Outside these areas, your device will switch to 4G. Download speeds on 5G can reach up to 1Gbps under optimal conditions, this is the maximum potential speed and not guaranteed. Speeds and quality depend on factors like location, device, network congestion, and coverage.
List of eSIM Supported Handsets (not exhaustive)
Reviews
Related Product
Up to 50GB
4G/5G speed
30 Days
Data Only
Expiry 31/03/2026
Use in 28 countries
Asia, Europe, USA & Mexico SIM Card 28 Countries
Supported Countries
- 🇦🇺 Australia
- 🇦🇹 Austria
- 🇰🇭 Cambodia
- 🇨🇳 China
- 🇩🇰 Denmark
- 🇫🇮 Finland
- 🇫🇷 France
- 🇭🇰 Hong Kong
- 🇮🇩 Indonesia
- 🇮🇪 Ireland
- 🇮🇱 Israel
- 🇮🇹 Italy
- 🇯🇵 Japan
- 🇲🇴 Macau
- 🇲🇾 Malaysia
- 🇲🇽 Mexico
- 🇳🇴 Norway
- 🇵🇭 Philippines
- 🇸🇲 San Marino
- 🇸🇬 Singapore
- 🇰🇷 South Korea
- 🇸🇪 Sweden
- 🇹🇼 Taiwan
- 🇹🇭 Thailand
- 🇬🇧 United Kingdom
- 🇺🇸 USA
- 🇻🇦 Vatican City
- 🇻🇳 Vietnam
Up to 50GB
4G/5G Speed
30 Days
Data Only
Expiry 30/06/2026
Use in 10 countries
Asia 5G SIM Card 10 Countries
Supported Countries
- 🇨🇳 China
- 🇭🇰 Hong Kong
- 🇯🇵 Japan
- 🇲🇴 Macau
- 🇲🇾 Malaysia
- 🇸🇬 Singapore
- 🇰🇷 South Korea
- 🇹🇼 Taiwan
- 🇹🇭 Thailand
- 🇻🇳 Vietnam
Unltd. data, calls & text
4G/5G Speed
Up to 90 Days
Add-on: 5GB in CA & MX
Activation date required
Use in 3 countries
USA 5G eSIM Unlimited Data | T-Mobile
Supported Countries
- 🇨🇦 Canada
- 🇲🇽 Mexico
- 🇺🇸 USA
Up to 20GB
4G/5G speed
Up to 30 Days (24 hours)
Data Only
Use within 180 days
Use in 107 countries
World Explorer 5G eSIM
Supported Countries
- 🇦🇱 Albania
- 🇩🇿 Algeria
- 🇦🇩 Andorra
- 🇦🇷 Argentina
- 🇦🇲 Armenia
- 🇦🇺 Australia
- 🇦🇹 Austria
- 🇦🇿 Azerbaijan
- 🇧🇭 Bahrain
- 🇧🇩 Bangladesh
- 🇧🇾 Belarus
- 🇧🇪 Belgium
- 🇧🇦 Bosnia and Herzegovina
- 🇧🇷 Brazil
- 🇧🇬 Bulgaria
- 🇰🇭 Cambodia
- 🇨🇦 Canada
- 🇨🇱 Chile
- 🇨🇳 China
- 🇨🇷 Costa Rica
- 🇭🇷 Croatia
- 🇨🇾 Cyprus
- 🇨🇿 Czech Republic
- 🇩🇰 Denmark
- 🇪🇨 Ecuador
- 🇪🇬 Egypt
- 🇪🇪 Estonia
- 🇫🇴 Faroe Islands
- 🇫🇮 Finland
- 🇫🇷 France
- 🇬🇫 French Guiana
- 🇬🇪 Georgia
- 🇩🇪 Germany
- 🇬🇭 Ghana
- 🇬🇮 Gibraltar
- 🇬🇷 Greece
- 🇬🇬 Guernsey
- 🇭🇰 Hong Kong
- 🇭🇺 Hungary
- 🇮🇸 Iceland
- 🇮🇳 India
- 🇮🇩 Indonesia
- 🇮🇶 Iraq
- 🇮🇪 Ireland
- 🇮🇲 Isle of Man
- 🇮🇱 Israel
- 🇮🇹 Italy
- 🇯🇵 Japan
- 🏳️ Jersey
- 🇰🇿 Kazakhstan
- 🇰🇪 Kenya
- 🇽🇰 Kosovo
- 🇰🇼 Kuwait
- 🇰🇬 Kyrgyzstan
- 🇱🇦 Laos
- 🇱🇻 Latvia
- 🇱🇮 Liechtenstein
- 🇱🇹 Lithuania
- 🇱🇺 Luxembourg
- 🇲🇴 Macau
- 🇲🇾 Malaysia
- 🇲🇹 Malta
- 🇲🇽 Mexico
- 🇲🇩 Moldova
- 🇲🇪 Montenegro
- 🇲🇦 Morocco
- 🇳🇱 Netherlands
- 🇳🇿 New Zealand
- 🇳🇬 Nigeria
- 🇲🇰 North Macedonia
- 🇳🇴 Norway
- 🇴🇲 Oman
- 🇵🇰 Pakistan
- 🇵🇪 Peru
- 🇵🇭 Philippines
- 🇵🇱 Poland
- 🇵🇹 Portugal
- 🇵🇷 Puerto Rico
- 🇶🇦 Qatar
- 🇷🇪 Reunion
- 🇷🇴 Romania
- 🇷🇺 Russia
- 🇧🇱 Saint Barthelemy
- 🇲🇫 Saint Martin
- 🇸🇦 Saudi Arabia
- 🇷🇸 Serbia
- 🇸🇬 Singapore
- 🇸🇰 Slovakia
- 🇸🇮 Slovenia
- 🇰🇷 South Korea
- 🇪🇸 Spain
- 🇱🇰 Sri Lanka
- 🇸🇪 Sweden
- 🇨🇭 Switzerland
- 🇹🇼 Taiwan
- 🇹🇭 Thailand
- 🇹🇳 Tunisia
- 🇹🇷 Turkey
- 🇦🇪 UAE
- 🇺🇦 Ukraine
- 🇬🇧 United Kingdom
- 🇺🇾 Uruguay
- 🇻🇮 US Virgin Islands
- 🇺🇸 USA
- 🇺🇿 Uzbekistan
- 🇻🇦 Vatican City
- 🇻🇳 Vietnam