Every traveler has a favorite messaging app. For Chinese visitors heading to Japan, that app is often WeChat. Korean travelers typically rely on KakaoTalk, while visitors from Taiwan, Hong Kong, Thailand, and other parts of Southeast Asia frequently use LINE. Meanwhile, WhatsApp connects travelers with friends, family, and colleagues around the world. The good news
Picture this: you’ve just touched down at Haneda Airport, your eSIM activates seamlessly, and within seconds Google Maps is routing you to your hotel in Shinjuku. But then a thought hits — what if someone needs to call me? What if I need to call a restaurant, a ryokan, or a taxi? Did I get