prepaid cell phone

I just got my prepaid sim card and everything works fine but I cant check how many minutes or how much money do I have remaining in my account. Im using motorola c333. so I was thinking that maybe the phone doesnt have that option, anyway I got to get another one and here's my question.
If I get one of the newer unlocked phones will I be able to check my account or do I have to get one of those phones that are made to be for prepaid sim cards.
thanks