Galaxy S III has all bands and receivers built in?

[Android Question]

This article (http://androidforums.com/samsung-galaxy-s/258859-how-enable-850mhz-3g-network-frequency-your-samsung-i9000-galaxy-s.html) implies that all S III's are GSM and CDMA compatible and capable of functioning on all frequencies. Am I reading it correctly?

I want to buy an S III but don't want to end up with the wrong "type." My conclusion after reading the above article is that I can buy any "unlocked" S III and put it on any network, but I'm checking here to see if I've drawn the correct conclusion.

Thanks.

John

 

[KOLIO]

Unfortunately,it's not all that simple.

Your best bet would be to contact your carrier & present the EXACT model of phone you wish to use.

 

[johncroc]

"Unfortunately,it's not all that simple."

Well...That's why I'm here (I posted the original message above as guest). To learn.

Can anyone help me understand? My carrier is Straight Talk, so basically I'm on my own. Plus, I WANT to understand.

I already knew that there were two basic standards (CDMA and GSM). I learned recently that CDMA phones can function on multiple frequencies (notably 850 MHz and 1.9 GHz). The post I referenced in my thread starter (above) seems to imply that the SIII has all the hardware, and which system and which frequency is controlled by software settings.

But Kolio says it's not that simple. Why isn't it that simple? What else do I need to know?