Am I able to use cellphones that are manufactured for Japan in Singapore? -

Is it possible to use cellulars that are manufactured/designed for Japan in Singapore in regards to voltage of charger, adapter, reception, charger s pin and etc? Can I just use them like the normal cellphones designed for Singapore?

You can definitely use the phone if the SIM is unlocked....I m selling iPhone and the SIM is unlocked so you can use it anywhere in the world.

where i live, it all depends on the sim card. If it is a GSM unlocked phone, then sure, no problem. but if not, then you might not be able to. I take my phone everywhere i go. ive took it to china, brazil, portugal, australia, russia, hawii, figi, bahamas, germany, poland, turkey, africa. and it worked in all of them. the only place it didnt work was india, and ohio? dont know why,.