Plan · 01
Unlimited
for 1 day · 2 GB/day full speed, then 2 Mbps
$11.30
USD
For when you stop counting gigabytes.
Samsung · 2023
Compatible
Install your Japan eSIM
on Galaxy S23.
Yes — Galaxy S23 supports eSIM in Japan. Full eSIM + physical SIM dual support. travel.to routes you to NTT Docomo, SoftBank, KDDI au automatically — you don't pick the carrier, your phone does.
Compatibility check
What checks out before payment.
eSIM supported
Galaxy S23 (2023) ships with eSIM hardware.
Carrier coverage
3 partner carriers in Japan · auto-handoff between them.
Speed band
180 – 320 Mbps urban · 28 ms RTT.
Install · ANDROID
6 steps from QR to online.
-
01
Open Settings on your phone
Tap the Settings app from your home screen or app drawer.
-
02
Tap Network & internet
On Pixel and most Android phones it's called Network & internet. Samsung Galaxy phones may label it Connections.
-
03
Open SIMs (or SIM card manager)
Tap SIMs on Pixel, or SIM card manager on Samsung. You'll see your current SIM lines listed.
-
04
Tap the + button or Add SIM
Look for a + icon or an Add SIM / Add eSIM action.
-
05
Choose Download a SIM instead?
When the phone asks if you have a physical SIM, choose Download a SIM instead — that's the eSIM path.
-
06
Scan the QR code from your email
Open the eSIM email from travel.to on another device and point your phone's camera at the QR code.
Once installed, the eSIM is dormant until Galaxy S23 reaches a partner carrier's network in Japan — typically the moment you land. No manual switch, no carrier app.
Japan network
What to expect on Galaxy S23 in Japan.
- Carriers
- NTT Docomo · SoftBank · KDDI au
- Network
- 180 – 320 Mbps urban · 28 ms RTT
- Time zone
- UTC+9 year-round
- Roaming alt cost
- $22 – 45/GB on default home-carrier roaming — travel.to is an order of magnitude cheaper.
Plans for Japan
Pick a plan and we'll email your QR.
Plan · 02
Unlimited
for 3 days · 2 GB/day full speed, then 2 Mbps
$27.47
USD
For when you stop counting gigabytes.
Plan · 03
Unlimited
for 5 days · 2 GB/day full speed, then 2 Mbps
$43.60
USD
For when you stop counting gigabytes.
Our pick
Plan · 04
Unlimited
for 7 days · 2 GB/day full speed, then 2 Mbps
$59.77
USD
For when you stop counting gigabytes.
Plan · 05
Unlimited
for 10 days · 2 GB/day full speed, then 2 Mbps
$84.02
USD
For when you stop counting gigabytes.
Plan · 06
Unlimited
for 15 days · 2 GB/day full speed, then 2 Mbps
$124.38
USD
For when you stop counting gigabytes.
Plan · 07
20000
MB
for 30 days
$35.01
USD
For a working week with a weekend either side.
Galaxy S23 in Japan
Common questions.
Yes. Galaxy S23 ships with eSIM hardware, and travel.to routes it onto NTT Docomo, SoftBank, and KDDI au in Japan. The line activates the moment you land — install takes under two minutes and is fully refundable if it fails to activate.
Yes. Galaxy S23 supports dual SIM worldwide, so your home SIM stays in the tray and travel.to installs alongside it as a second line. No swapping, no removing your primary number.
On Galaxy S23 open Settings → Network & internet → SIMs (Samsung calls it SIM card manager under Connections), tap Add SIM, choose "Download a SIM instead", and scan the QR from your travel.to email — 6 taps total.
Under two minutes. The QR arrives by email seconds after payment; 6 taps later the profile is installed on Galaxy S23. It stays dormant until you reach a partner network in Japan (UTC+9 year-round) — usually the instant you land, before you have changed your clock.
In Japan we route on NTT Docomo, SoftBank, and KDDI au. Galaxy S23 hands off automatically to whichever has the strongest signal where you are — you do not pick the carrier, the phone does.
180 – 320 Mbps urban · 28 ms RTT. Galaxy S23 negotiates the fastest band the local network offers, so in covered areas you get the same speeds a native SIM would pull on the same carrier.
Default home-carrier roaming in Japan runs about $22 – 45 per GB. A travel.to plan for Japan sits an order of magnitude below that, and you never get a surprise bill — you pay once, up front, for the data you chose.
No need. The airport SIM kiosks in Japan keep limited hours (Narita NRT / Haneda HND · 06:30 – 22:00) and you would queue at them with the rest of your flight. Install the travel.to eSIM on Galaxy S23 before you board and you walk straight past them, already online.
Three carriers per region · auto-failover below signal threshold Galaxy S23 falls back automatically — you never have to switch networks by hand.
Yes. Top-ups reuse the Japan eSIM profile already on Galaxy S23 — no new QR scan, no second install. Same line, fresh data, added from your Japan order page in one tap.
Full refund if the Japan eSIM fails to activate on Galaxy S23. Half refund if it activates but underperforms on NTT Docomo, SoftBank, and KDDI au (and if you used under 500 MB, you get the full amount). One click from your dashboard — no email thread.
A few Galaxy S23-specific notes: The S23 was the first Galaxy S to run two eSIMs active at once (dual eSIM). Keep your home SIM physical and add travel.to as an eSIM, or run two eSIMs if you've gone SIM-free. A handful of regional S23 variants ship without eSIM — confirm via SIM card manager. Beyond that, the travel.to install flow in Japan is the standard Android path.
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