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Japan’s summer is perfect for leisure at the beach or mountains, but it’s also a season with high risks of natural disasters such as extreme heat, typhoons, and sudden heavy rain. When the time comes, your smartphone is not just “a device” — it becomes a “lifeline” that protects your life.

Here are some “smartphone survival tips” to help everyone living in Japan stay safe and secure this summer.

▮Heat Countermeasures: Turn Your Smartphone into a “Life-Saving Information Source”

Japan’s summers can reach life-threatening levels of heat.

■ Check Heatstroke Alerts
Regularly check the Japan Meteorological Agency website and weather apps, and avoid going outside during dangerous hours.

■ Search for Evacuation Shelters
In case you feel unwell, maintain the ability to quickly search for nearby public facilities, convenience stores, and evacuation sites.

■ The Reassurance of “Unlimited Data”
When you’re concerned about data limits, you may hesitate to look up the latest weather updates. With Rakuten Mobile’s unlimited data, you can always check the latest weather news without worrying about speed throttling.

▮Typhoons & Sudden Downpours: The “Freshness” of Information Can Mean the Difference Between Life and Death

During typhoons and heavy rain, conditions change by the minute.

■ Real-Time Evacuation Information
Check evacuation advisories from local governments and river flooding alerts in real time via social media and news.

■ Staying in Touch with Family and Friends
Phone lines get congested during disasters, but with a stable data connection, you can check in on each other via LINE calls, messages, and social media.

■ Making Use of Tethering
Even if your home internet goes down due to a power outage or malfunction, Rakuten Mobile’s tethering lets you connect your PC or tablet to access detailed disaster information.

▮Rakuten Mobile’s Commitment to “Disaster Preparedness (BCP)”

Behind the scenes of our worry-free smartphone use, Rakuten Mobile has built a robust system to “keep communications running during disasters.”

■ A Disaster-Resilient Network
Base stations and communication systems are built with earthquake, fire, and flood resistance in mind. In the event of a power outage, mobile power vehicles and portable generators are deployed to maintain communications at all costs.

■ Track Record from the Noto Peninsula Earthquake
During the “2024 Noto Peninsula Earthquake (Reiwa 6),” Rakuten Mobile responded swiftly on the ground. The entire company mobilized to restore communications in affected areas as quickly as possible, including deploying mobile base station vehicles and providing Wi-Fi routers and chargers to evacuation shelters.

■ Responsibility as a “Designated Public Institution”
Rakuten Mobile has been certified by the government as a designated public institution, fulfilling its mission as social infrastructure — conducting drills in cooperation with local governments, delivering emergency alert messages during disasters, and providing disaster message boards — all based on its disaster management plan.

▮“Be Prepared, Have No Worries” — How to Enjoy This Summer Safely

Disasters can happen anytime, anywhere. That’s why choosing a company where “communications professionals put everything into disaster preparedness” is the ultimate preparedness measure for living in Japan.

With Rakuten Mobile, you can sign up online with same-day activation at the earliest. Make your smartphone the ultimate survival tool — your go-to information source in emergencies and a comfortable companion for everyday leisure.

Click here for details on Rakuten Mobile’s disaster preparedness initiatives＞

Check Rakuten Mobile’s service area＞

※ During disasters, communication lines may become congested and harder to connect.
※ We strongly recommend always carrying a portable battery and keeping it charged.

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