eSIM offers a hassle-free and easy setup, allowing you to connect to the internet as soon as you arrive. You can enjoy stress-free map searches and social media posts during your trip! There's no need to wait in long lines at the airport to buy a SIM card or rent a Pocket Wi-Fi. With eSIM, you can purchase it anytime, anywhere. It's extremely convenient. This page introduces important points about using eSIM in Japan.
What is eSIM?
eSIM (Embedded SIM) is a new type of SIM technology that doesn’t require a physical SIM card. Using a digital SIM embedded in your smartphone or tablet, you can easily set it up by scanning a QR code. This makes accessing the internet during your trip to Japan simple and convenient.
Important Points About eSIMs and SIM Cards for Travelers in Japan
Data-Only Functionality
eSIM plans or SIM cards sold to travelers in Japan typically only provide data services. Voice calls and SMS are not included. However, apps like WhatsApp and LINE can be used for calls and messaging.
Potential Connection Instability
Smartphones that don’t support all Japanese frequency bands might experience unstable connections in certain areas, such as rural or mountainous regions. If you’re using an older smartphone or unsure about compatibility with Japanese frequency bands, renting a Pocket Wi-Fi is recommended. Pocket Wi-Fi devices rented in Japan are fully compatible with local networks, offer more data capacity than eSIMs, and can be shared among multiple devices or people, often making them a cost-effective choice.
Japan Unlimited Pocket WiFi
Tethering
Many people hope to use eSIM plans with large data allowances to enable tethering for other devices. However, some eSIM providers restrict tethering. eSIMs offered by CDJapan Rental have no such restrictions, making them a great option if tethering is a priority.
Tips for Using eSIM
Save Battery Life
Using mobile data continuously with an eSIM may drain your smartphone battery faster. To conserve battery:
- Turn off mobile data when not in use.
- Adjust screen brightness.
- Close unnecessary apps.
Save Data Usage
While eSIM plans now offer larger data capacities, fully unlimited plans are still rare. High data usage in a short time might trigger Fair Usage Policy (FUP) restrictions, slowing down your connection. To save data:
- Limit background data usage for apps.
- Disable automatic downloads of videos and photos.
- Use Wi-Fi networks to download large files.
Recommended Calling Apps in Japan
- LINE: The most popular messaging and calling app in Japan. Offers free voice and video calls.
- Skype: Useful for international calls and video conferences. Allows calls to Japanese landlines with prepaid credit.
- WhatsApp: Widely used by international travelers and works reliably in Japan.
Benefits of Choosing eSIM for Your Japan Trip
- Instant Connectivity: Pre-configure your eSIM before arriving in Japan to connect to the internet immediately upon arrival.
- Easy Data Top-Ups: If you run out of data, you can easily purchase additional plans online, ensuring efficient usage without waste.
- No Need to Swap SIM Cards: You don’t need to remove your physical SIM card, avoiding potential damage to your device. If you have a dual-SIM device, you can use your current SIM alongside the eSIM.
- Flexible Plans for Short-Term Travelers: eSIMs offer a variety of plans tailored to travel durations, such as one week or one month, making them a cost-effective option for short trips.
- Avoid Unexpected Charges: International roaming can result in unexpected high charges, but eSIMs have clear, fixed pricing, giving you peace of mind.
By understanding the limitations of eSIMs available in Japan, you can make informed decisions and avoid surprises. eSIMs are a highly convenient option, especially since they can be purchased anytime, anywhere.
Japan Travel eSIM
