Japan Travel - NEW Docomo IIJmio 30 days 50GB prepaid data SIM card
4G / LTE High speed internet access with the IIJmio network in Japan. Sim card is using IIJ or Docomo 3G and 4G networks. 4G coverage footprint of 98% and a combined 4G and 3G coverage footprint of 98.8% of the Japanese population.