No, there are multiple sizes:
Yes, 4G and 3G SIM cards are the same physical size, as they both adhere to the same SIM card standards (such as mini-SIM, micro-SIM, or nano-SIM). The key difference lies in their technology and capabilities, not their size. Both types of SIM cards can be used in compatible devices regardless of the network generation.
Yes, all sim cards conform to a standard size.
yea i have gotten several phones from att and used the same sim card for all of them, and kept the same phone number.
SIM cards do not have to be manufactured by the same company as the phone itself. There are many manufacturers of SIM cards out there.
You can use by inserting a SIM card in it by golden side up and printed side down. THANX...
No, some have more than others
The Phone Number is assigned to the SIM card. If you put the SIM card into the new phone, the number will be the same, However not all SIM cards wil transfer to all phones.
yes they do all have sim cards also on a different note the t-mobile phones accepts the cingular sim cards when unlocked and vice versa
SIM cards have generic sizes and basic functions. The difference lie in the frequencies that they operate on.
Verizon doesn't use SIM cards, so the Verizon iPhones presumably don't. All AT&T iPhones have a SIM card, though.
No, only Rzrs that worked on GSM networks have sim cards. Rzrs that worked on CDMA networks did not have a sim card slot.
Not all cell phones are compatible with SIM cards. Some only work with a contract, and you need to unlock the phone before you can use a SIM card.