Unreliable Wi-Fi Spots
Even if it says "Free Wi-Fi," you might need to register or it might not connect at all.
In Japan, you often see "Free Wi-Fi" signs at train stations, cafes, airports, and tourist spots, but in reality, it is not uncommon to have trouble connecting smoothly. Sometimes, you are required to register your email address or install an app, and there may also be limits on the usage time.
Furthermore, even if you manage to connect, the internet speed can be slow, or the connection can become unstable in crowded places. Especially in subways or congested stations, Wi-Fi tends to disconnect easily, which can cause map or translation apps to suddenly stop working. If you assume you will be fine just because there is "Free Wi-Fi," you might find yourself in trouble while on the move.
Because of this, an increasing number of travelers are preparing their own personal communication methods—such as SIM cards, eSIMs, or pocket Wi-Fi—rather than relying solely on free Wi-Fi when traveling in Japan. Having a stable internet connection is especially reassuring if you frequently use map searches or cashless payments.
Of course, the number of comfortable and reliable Wi-Fi spots at hotels and major cafe chains is also increasing. Please enjoy your trip to Japan with a comfortable internet environment by making good use of them depending on the situation.
