China mainland & Japan & South Korea eSIM
From $5.99 · 8 plans · 5G where available · China Unicom and KDDI/au
Photograph: Sun Hu / Jin Kun / Chen Mei, Public domain, via Wikimedia Commons
Longest stay
Lowest price
1 GB
7 days · 3G/4G/5G
The cheapest way in for a short trip.
- Per GB
- $5.99
- Exit IP
- HK
Best value
20 GB
30 days · 3G/4G/5G
Lowest cost per gigabyte of any plan here.
- Per GB
- $3.15
- Exit IP
- HK
Connecting in China mainland & Japan & South Korea
- Networks you will be on
- China Unicom · KDDI/au · SKTelecom
- Speeds
- 3G/4G/5G
- Where your traffic exits
- HK
- Validity
- 1–30 days
Your phone picks whichever is strongest where you are, the same way roaming does. There is nothing to switch manually.
Actual speed depends on the network and where you are standing, exactly as it does on your own carrier at home.
Sites will see this country rather than China mainland & Japan & South Korea. It occasionally matters for banking apps and streaming libraries, so it is stated on every plan before you pay.
Counting starts at first connection, not at purchase. Install at home and none of it is wasted.
Every country China mainland & Japan & South Korea covers
3 countries and territories on one eSIM. Check your own route against this before you buy — a country that is not on this list is not covered, and crossing into one means no data until you leave it again.
China mainlandCN
JapanJP
South KoreaKR
Every China mainland & Japan & South Korea plan compared
Install once — deleting it destroys the plan
An eSIM profile can be installed one time only. If you delete it from your phone, reset the device or erase all content, this plan is permanently lost — we cannot reissue it and it cannot be refunded.
Step-by-step guide for your phoneChina mainland & Japan & South Korea eSIM questions
- Which countries does the China mainland & Japan & South Korea eSIM cover?
- 3 in total: China mainland, Japan, South Korea. A country that is not on that list is not covered — crossing into one means no data until you leave it again, so check your route against it before buying.
- Which networks will I be on in China mainland & Japan & South Korea?
- Your Ahoray eSIM connects to China Unicom, KDDI/au, SKTelecom. Your phone picks whichever is strongest where you are, exactly as roaming does — you do not choose or switch manually.
- How long is a China mainland & Japan & South Korea eSIM valid?
- Plans run from 1 to 30 days. Validity starts the first time the eSIM connects to a network, not when you buy it — so installing before you fly costs you none of your days.
- Where does my internet traffic appear to come from?
- Traffic on these plans exits in HK. Websites and apps will see that country rather than China mainland & Japan & South Korea, which occasionally matters for banking apps and streaming libraries. It is stated on every plan before you pay.
- Will it work on my phone?
- Your phone needs to support eSIM and be carrier-unlocked. That covers iPhone XS and newer, Google Pixel 3 and newer, and most Samsung Galaxy S20 and newer. If you are unsure, dial *#06# — if an EID number appears, the phone supports eSIM.
- Can I keep my own number?
- Yes. Your usual SIM stays in the phone and keeps handling calls and texts; Ahoray is added as a second line and carries the data. Nothing on your home plan changes.
- What happens if I delete the eSIM?
- An eSIM profile can be installed once. Deleting it from your phone, resetting the device or erasing all content destroys the plan permanently — it cannot be reissued and it cannot be refunded. If something is not working, write to us before deleting anything.
Before you choose a size
How much data do I need?
A week of maps, messaging and email is about 1 GB; add photos and social media and it is nearer 3 GB.
eSIM vs roaming
A day pass charges by the day, an eSIM by the gigabyte — which is cheaper depends entirely on the shape of your trip.
Does my phone support eSIM?
Dial *#06#: if an EID number appears the phone supports eSIM. It must also be carrier-unlocked, which is a separate thing.
