Selling iPhone - SIM question

[tikitommy]

Planning on selling my 4, using my 3G, till the 5/4S comes out...

After I deactivate my current phone (4), and reactivate my 3G, do I need to discard the SIM from the i4 or is it irrelevant as the i4 SIM will no longer be associated with my account?

I will be erasing all content/settings before selling.

Thanks in advance.

 

[Aldaris]

You'll have to get a new SIM card since the iPhone 4 uses the micro-SIM.

Probably be easiest to just keep the SIM and have the buyer go get a new one.

 

[Intell]

When selling a cell phone that has a SIM card, the seller should always keep the SIM card. Even after the card has been deactivated, it still contains account information.

 

[theman510]

When I sold my 3GS after getting the iPhone 4, I broke my sim card in two and chucked it

 

[boshii]

You can buy a microsim adapter and use your current iPhone 4 sim in the 3G.

 

[tikitommy]

Got it.

Thanks guys.

 

[Merkie]

Activation procedures are annoying and completely useless. I've never ever had to activate a phone in my life before I had an iPhone. I have absolutely no clue at all what it exactly does.

On-topic.
SIM = your account.
Phone = phone.

They are not tied together. That's why you're able to remove the SIM. They're complety isolated from each other.