Japonya için Seyahat eSIM'i

Yes. The Japan unlimited plans have no fair-use policy and no speed cap — you get full-speed 5G/4G data on KDDI for the whole 7, 15 or 30 days. Plans start at $19.99 for 7 days.

Yes. On fixed-data plans, hotspot uses your data allowance. Unlimited plans include hotspot data: 6 GB on the 7-day plan, 14 GB on the 15-day plan and 30 GB on the 30-day plan, so you can share with a laptop or travel partner.

KDDI (au), one of Japan's three major carriers. The ETravelSim Japan eSIM is a native KDDI profile, not a roaming overlay, so you don't need to turn on Data Roaming. You get 5G in major cities and airports, with 4G LTE across the Shinkansen network and rural Japan.

Install it at home on Wi-Fi before you fly: scan the QR code, label the line "Japan" and leave it switched off. Validity starts when the eSIM first connects to a Japanese network, not when you buy or install it. After landing, turn the line on and set it as your mobile data line — you'll be connected within 2–5 minutes.

Most tourists use 0.5–1 GB a day for maps, messaging and social media. 5 GB suits a 1-week trip, 10 GB a 2-week trip, and 20 GB two weeks with daily video. For streaming, remote work or hotspot use, choose an unlimited plan.

Yes, the ETravelSim Japan eSIM works on every iPhone from XR onwards, including iPhone 11 to iPhone 17, iPhone 16e, iPhone 17e, iPhone Air, iPhone 18 Pro / 18 Pro Max, iPhone Duo and iPhone SE (2020/2022). Your iPhone must be carrier-unlocked: under Settings → General → About, "Carrier Lock" should read "No SIM restrictions" before you buy.

Yes. KDDI has full 5G coverage at Narita (NRT), Haneda (HND), Kansai (KIX), and New Chitose (CTS). Your ETravelSim Japan eSIM connects automatically within 2–5 minutes of switching on cellular data after landing. Google Maps will be live as you walk to the train.

Yes. You'll get 4G LTE across most of the Tokaido, Tohoku, Hokuriku and Sanyo Shinkansen routes, with brief signal drops in some of the longest mountain tunnels. Speeds resume as soon as you exit.

Yes. KDDI covers all 47 prefectures of Japan including Hokkaido, Okinawa, Tohoku, and Kyushu. 5G is concentrated in cities and major towns. Rural areas, deep mountain regions, and smaller Okinawan islands fall back to 4G LTE, which stays fast enough for maps and messaging.

Both. The ETravelSim Japan eSIM delivers 5G on KDDI's network across Tokyo, Osaka, Kyoto, Nagoya, Fukuoka, Sapporo, and most major Japanese cities. Outside 5G zones, it falls back to 4G LTE automatically. Your phone must be 5G-capable hardware to actually use the 5G layer.

No. The ETravelSim Japan eSIM is data-only — there is no Japanese mobile number and no incoming or outgoing voice calls or SMS. Use WhatsApp, FaceTime, Skype, Zoom, or Google Voice over data. Your home phone number stays active on your primary SIM throughout.

Yes. WhatsApp uses internet data rather than the mobile number itself, so it works perfectly on the ETravelSim Japan eSIM. You keep your existing WhatsApp account tied to your home number, and the Japan eSIM simply provides the data connection for messages, calls, and media.

Yes. Your home SIM stays active for calls and SMS on your normal home number while the ETravelSim Japan eSIM handles data. This dual-SIM setup is the main reason most international travelers choose an eSIM over a physical SIM — you don't lose your usual number.

Your eSIM QR code is emailed to you instantly after payment, along with the SM-DP+ address, activation code and a step-by-step install guide. If the email doesn't arrive, check your spam folder. If it's still missing, contact ETravelSim support — average chat reply is under one hour.

Toggle Airplane Mode off and on, then check that the ETravelSim line is turned on and selected for mobile data. You don't need to turn on Data Roaming — the Japan eSIM is a native KDDI profile. If it still won't connect, message ETravelSim support — most issues are fixed in under 10 minutes.

No. The Japan eSIM QR code is single-use. Once it's scanned and installed on a phone, it cannot be transferred to a different device, and it cannot be reinstalled if you delete it. Take a screenshot of the QR before scanning so you have an emergency backup.

On fixed-data plans (1 GB to 50 GB) your connection stops once the allowance is used up. Existing eSIMs can't be recharged: to get more data, buy a new ETravelSim Japan eSIM and install it as a second eSIM on the same phone — most modern iPhones and Android phones hold several eSIM profiles. If you use a lot of data, an unlimited plan avoids this entirely.

To check your balance simply click here.

or

- Go to Account Section

- If you are an existing  customer then login else create account with the same email ID from which you had purchased the eSim.

- On the My Account page, you will see a list of all the orders.

- Click the View Balance button against the order number to fetch the balance of your number. 

OR 

Please mail support@etravelsim.com mentioning your order number, and the support team will provide you with the required details.

Yes, if you ask within 5 days of purchase. If you ordered by mistake or your phone is not eSIM-compatible, we refund the price minus a $5 fee (or the equivalent in your currency), as long as the eSIM has not been installed or used. If the problem is on our side, for example the QR code never arrived or the eSIM has a fault we cannot fix, you get a full refund with no fee. Approved refunds reach your original payment method within 15 days. Contact ETravelSim support with your order number to start a refund.

On iPhone: Settings → General → About → "Carrier Lock" should read "No SIM restrictions". On Android, settings vary by manufacturer. Phones bought outright or fully out of contract are usually unlocked. Carrier-locked phones cannot use any travel eSIM, including ETravelSim Japan.

For most travelers, yes. Airport SIM counters require photo ID and queuing after a long flight. The ETravelSim Japan eSIM is installed at home before you fly, takes about 2 minutes to set up, and connects the moment you land.

Pocket Wi-Fi rental in Japan costs $5–$10 per day, requires airport pickup and drop-off, and is an extra device to charge and carry. An eSIM stays in your phone, has no pickup hassle, and works out cheaper per day on any trip longer than three days.

No. The ETravelSim Japan eSIM is designed for smartphones and tablets only. Apple Watch cellular requires a carrier-paired plan from your home network provider — travel eSIMs cannot be installed on the Apple Watch directly. Use your iPhone connection while you're in Japan instead.