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お得な
プランを
確認

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Premium eSIM Features

  • Free Domestic Trial Data

    We offer a free trial eSIM.
    You can test it before traveling abroad, so you can use it with confidence without worrying about setup issues at your destination.

  • Easy One-Click Setup on Your Device

    Install your eSIM with just one click.
    Simply turn on data roaming and you’ll be connected instantly.

    *Requires iOS 17.4 or later

  • Reliable High-Speed 5G Connectivity

    Enjoy high-speed 5G connectivity.
    More secure and stable than public Wi-Fi.
    5G may not be available in some areas; 4G LTE will be provided instead.    *

Pricing

あなたにぴったり！
お得なプランをご用意！

あなたにぴったりなプランを探す▶

HOW TO USE

How to use eSIM

HOW TO USE

eSIMが使えるか
簡単確認!

eSIM check (SP) eSIM check (PC)

eSIM・Wi-Fiの違い

5G Image

高速5G対応

プレミアムeSIMは5Gに対応！
4Gよりも遥かに高速なデータ通信が可能！
海外でもスムーズに通信ができます。

※一部地域では4G LTEでの提供となります。

こんな経験ありませんか？

eSIM

プレミアムeSIMなら
すべて解決できちゃいます！

かんたん申し込み ▶

お客様の声

  • 30代／女性／アメリカ旅行

    お試しeSIMの安心感がすごい

    はじめてのeSIMで不安でしたが、お試し用のeSIMがあることで、設定の練習ができ安心でした。 アメリカ滞在中も問題なくつながって、ホテルや空港でも助かりました。

  • 40代／男性／海外出張（ヨーロッパ）

    モバイルWiFi卒業！身軽に出張

    海外出張で、いままではポケットWiFiを持ち歩いてましたが、eSIMで身軽に。 空港でSIMを探す手間もなく、スマートに移動できて助かりました。

  • 30代／女性／アジア旅行

    スマホひとつで海外つながった！

    東南アジアによく行くので、毎回このeSIMを使ってます。 現地での設定不要、QR読み取るだけでサクサク。 荷物も減って、家族旅行にも便利です。

よくある質問

Didn’t Receive Your Confirmation Email?

If you cannot find the confirmation email even after checking your spam folder, please contact us using the link below.
Contact Us – Premium eSIM

Unable to Roam / Signal Present but No Data Connection

1. Data Roaming is turned off

⇒ Please check that Data Roaming is enabled in your device settings.

📱 [iPhone]

Settings ＞ Cellular ＞ Select your plan ＞ Data Roaming

📱 [Android]

Settings ＞ Network & Internet ＞ Mobile Network ＞ Roaming

2. Mobile Data is not set to the eSIM

⇒ Make sure your mobile data is assigned to the correct eSIM plan.

📱 Settings ＞ Cellular (or SIM Manager) ＞ Confirm the eSIM is selected for Mobile Data

3. APN settings are incorrect or not configured

⇒ Please ensure the specified APN information is entered correctly (especially on Android devices).

4. Other configuration profiles may interfere (iPhone)

⇒ Previously installed profiles may affect connectivity.

📱 Settings ＞ General ＞ VPN & Device Management ＞ Remove any unnecessary profiles

5. 5G connection instability

(In some regions, 4G/LTE may be more stable)

⇒ Switching the network mode manually to 4G/LTE may improve connectivity.

📱 [iPhone]

Settings ＞ Cellular ＞ Cellular Data Options ＞ Voice & Data ＞ Select “4G”

📱 [Android]

Settings ＞ Mobile Network ＞ Preferred Network Type ＞ Select “LTE” or similar

How quickly can I start using the eSIM?

After purchase, a QR code will be sent to your registered email address.
It usually arrives within a few minutes.

If you do not receive the email within 24 hours, please contact us.

Emails will be sent from the @premium-esim.com domain.

Can I install the same QR code on multiple devices?

Each eSIM is linked to a unique eSIM number and can only be used once.
Therefore, it cannot be installed on multiple devices.

Additionally:

The eSIM profile can only be downloaded once.

Please ensure you install it on the correct device.

Deleting the downloaded profile will immediately disable the service.

Please take care not to delete it accidentally.

Can I use calls or SMS?

Our eSIM is data-only.

Traditional voice calls and SMS using a phone number are not supported.

However, you can make calls using VoIP apps such as LINE, Skype, WhatsApp, etc.

Where can I check my remaining data or plan validity?

You can check your remaining data by entering your ICCID on the data usage confirmation page.

You can also access the same confirmation page through the email you received after purchase.

Data Usage Confirmation Page

Can I use tethering (mobile hotspot)?

Yes, tethering is available.

Please enable the tethering / hotspot function from your device settings when using it.

Note: Tethering is supported on compatible devices, but operation is not guaranteed.

Can I reissue an eSIM if I accidentally delete it?

If you have deleted the email containing your eSIM information,

we can resend it — please contact us via the inquiry form.

However:

  • If the eSIM profile has been deleted from your device after installation
  • Or if the device has been lost or damaged

Reissuing the eSIM may not be possible due to service limitations.

Contact Us – Premium eSIM

Refunds & Returns

Due to the nature of this product, returns or refunds cannot be accepted after activation.

However, if an initial defect or an issue caused by our service is confirmed,

we will handle it individually. Please contact us using the link below.

Contact Us – Premium eSIM