Japan 5G SIM Card

(185 Reviews)
JAPAN 5G SIM CARD
  • JAPAN 5G SIM CARD
  • Sim card isntallation
  • 5 star service
  • live chat anytime
product review winner
Google 5 star

Up to 50GB
4G/5G speed
Up to 45 days
Data Only
Expiry 31/10/2026
Use in Japan

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Quantity

Description

What’s Included?

  • 5 – 50GB (Unlimited data at 128kbps)
  • No daily limit
  • 4G/5G speed
  • 30 – 45 days service from activation
  • For use in Japan
  • Fits all phones (SIM Size: Nano, Micro, and Standard)
  • Hotspot/Tethering enabled
  • Expire 31 October 2026

Things to know

  • The SIM’s provider is 3HK
  • Simple plug & play activation
  • No ID registration needed
  • No calls or texts included (data-only SIM)
  • Network Operator list included below
  • Compatible with unlocked mobile devices
  • Check data usage online

Important Notes

  • ⚠️ TikTok works on iPhone only, ChatGPT works on all devices (Note for Android users: TikTok will NOT work)
  • SIM will NOT work on Modem/Mifi/Pocket Wifi devices
  • Insert the SIM card upon arrival at your destination to avoid accidental activation outside coverage countries
  • Check network coverage in your intended travel areas; Coverage issues are outside our control and we do not offer refunds

Troubleshooting Guide

SIM not working? Don’t stress! Follow this guide to get you up and running.

  1. Disable VPN and any secondary SIM/eSIM lines (for dual SIM phones)
  2. Turn phone off, remove the SIM, insert the SIM back and turn phone on
  3. Confirm mobile data is sourced from our SIM (i.e. the correct SIM profile is selected)
  4. Turn data roaming on (Android: select all network)
  5. Wait up to 10 minutes for activation to occur
  6. APN: mobile.three.com.hk | Username: [blank]  Password: [blank] (Android: select manually)
  7. Turn off automatic network selection and manually choose from the list below.
  8. Restart your phone and/or turn on and off airplane mode
  9. 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(5G) / Softbank(5G) / Rakuten(5G)]

*Updated product listing on 5 Nov 2025: changed provider from CMHK to 3HK.

Reviews

Customer Reviews

Japan 5G SIM Card
Sarah Macmillan
Rating: 5/5
Has worked well with no issues.
Sat Dec 20 2025 11:53:11 GMT+0000 (Coordinated Universal Time)
Japan eSIM Unlimited Data | KDDI
Justin
Rating: 5/5
Great service with no issues or black spots at all within Japan.
Wed Nov 26 2025 00:22:47 GMT+0000 (Coordinated Universal Time)
Japan 5G SIM Card
Paul V.
Rating: 5/5
Just turn on and
Just turn on and go
Fri Oct 10 2025 22:38:43 GMT+0000 (Coordinated Universal Time)
Japan 5G eSIM
Jose Lomboy
Rating: 5/5
Holiday in Japan
Its absolutely a good desision that i purchased an esim at travelkon its hassle free as soon i arrived in Japan it activate straight away. I’ll used it again in my next asia adventure. Thanks
Sat Apr 05 2025 09:19:48 GMT+0000 (Coordinated Universal Time)
Japan 5G eSIM
Anonymous
Rating: 5/5
Great service and speed with no connectivity issues (in Tokyo, Nagano and Hakuba)
Thu Feb 01 2024 08:35:18 GMT+0000 (Coordinated Universal Time)
Japan 5G SIM Card
William C.
Rating: 5/5
Working well as soon as I landed. Thanks!
Tue Jun 11 2024 22:38:02 GMT+0000 (Coordinated Universal Time)
Japan 5G SIM Card
Kelvin
Rating: 5/5
Best travel sim and great support if you encounter any issues
Wed Jun 07 2023 04:53:50 GMT+0000 (Coordinated Universal Time)
Japan 5G SIM Card
Danielle
Rating: 5/5
Great value and easy to use when travelling overseas!!!
Fri Jun 30 2023 07:19:46 GMT+0000 (Coordinated Universal Time)
Japan eSIM Unlimited Data | KDDI
Edward Chan
Rating: 5/5
Bought KDDI eSIM for 5 days holiday in Japan. Activation was easy, worked on arrival. However hotspot only allowed 5GB instead of 25GB as per mentioned on OzBargain forum.
Sun Dec 21 2025 11:47:19 GMT+0000 (Coordinated Universal Time)
Japan 5G eSIM
Tim
Rating: 5/5
Good
Sun Dec 21 2025 04:55:42 GMT+0000 (Coordinated Universal Time)

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