Can I use my smartphone in Japan?
If you activate international roaming, you can use your Smartphone in 3G service areas whilst in Japan. Please beware of high international roaming charges.
Japanese SIM cards have for a long time really difficult for visitors or foreigners to obtain. Recently there are companies that are making it easier. You can find short stay 3-14 day pre-paid data only SIM cards at airports or convenience stores in Japan. Alternatively, our favourite, mobal, offer a pre-paid or monthly Japanese SIM with voice, text and data. With free shipping worldwide and free pick-up in Japan, you can be connected the moment you step off the plane.
Prior to mobal, we recommended CDJapan rental data sim-card and found it to be sufficient and affordable.