I traveled to Japan for 7 days in early September … now I don't know whether to buy Wifi or phone cards … and where to buy them … for help! ! !

If you go directly to Japan and then return to China, you can buy wifi or phone cards. Wifi, you have to choose one. Some batteries that have been used for a long time after charging are not good, and they will be dead in a few hours, and you have to prepare a charging treasure and be ready to charge at any time.

If you have to go to other places after going to Japan, and it is not convenient to send wifi back quickly, then it is suitable to use a calling card. Because wifi is charged by the day. If you want to buy a phone card, you'd better take it from the local airport in Japan and go there to buy a Japanese phone card bought in China. The signal may be bad, but Japanese local calling cards are all from real-name registration system, so I have to buy them directly with my passport.