Originally Posted by Hadron
Yes, that is correct.
That's actually the whole point of the SIM card - it identifies you to the network, and any phone you put it in becomes "your phone". The only thing to watch is that a phone bought from a network will almost certainly only accept that network's SIMs. So a T-Mobile or unlocked model should be fine (check 3g/4g frequencies on the unlocked model match T-Mobile).
I last bought a handset through a contract in the 90s. Since then I've just bought offline phones and transferred the SIM.
Yea, I knew what SIM cards so, never dealt with them because Sprint barely uses them, at least when I had Sprint. Like I said, just switched to t mobile and while the answer to my question seemed simple enough, I just wanted to make ABSOLUTELY sure before dropping up 3 or 400 + dollars for the HTC One. thanks for the answers.
Originally Posted by sikclown
Keep in mind that the Unlocked version does not support HSPA+ on AWS (1700/2100) on T-Mobile, only HSPA+ on 1900 which is currently going through build out.
"going through build out" Can you explain? I'm not sure what that means.