Can you use still use the sim card from tmobile in this situation?

I've been wanting an iPhone in my whole life, so i got an Alcatel One touch fierce, tmobile contract, uder my father's credit, so i have given a thought of buying an iPhone 5s in full price and ill be purchasing it on apple store. Is it possible if i use the sim card from tmobile and use the iphone as my phone? Is that possible?

The sim cards for the new iphones are Micro sims being about 50% the size of a normal sim card so no yours will not fit iin it. But you should be able to get an iphone sim from tmobile as I think they sell the iphones now and you will be set up on an iphone plan when you activate it with them. You won't be charged any more than normal and you can keep your same phonee number. You will need to see if tmobile has the iphone 5s and if they do then they will have a micro sim they usually give them out fkr free if you call and ask them. The second issue is that the iphone may be locked to another carrier like ATT or verizon so be sure when your at the apple store they know you are wanting to use tmobile.

bottom line is that if tmobile doesn't have the iphone 5s for sale in their stores than no iphones at the apple store are unlocked to use on their network. And your dream will be put on hold for a bit. I'm sorry if tthis is so.

It would actually be much easier if you get the iPhone from Tmobile themselves. They will set up a plan and give you a new SIM card along with it.