To be able to use our SIM card, your device must meet the following conditions:
- It is SIM-free.
- It can receive Docomo signals.  In most cases, band 1 and band 19 are used.

Band 1 (2100MHz) ：Most cities
Band 19 (800MHz) ：rural areas, mountains, lakes, islands, suburbs of Kyoto, Nara, Hokkaido except Sapporo, North of Okinawa, and Takayama

Your phone device MUST support Band 1 in order to have signals for most of the time. 

Band 19 support is not necessary, but it will be better if your phone device does.

Please see Compatibility page for more information.