My son wants to start using an iphone 4 instead of his HTC. Can he use the same sim card?
There is no sim card in the 4 I don't know about the 4s
Neither one uses the SIM card to connect to the Verizon Wireless network as well.
If you ment the SD memory card, the iphone doesn't have that either
he would have to transfer all his info to a computer and sync it with itunes to get to his iphone
The SIM is for the 4G signal or International, the iPhone 4gs SIM is for International use only, also remember that the iPhonr does not even have 4G.
Wildman, the AT&T version of the iPhone 4GS does have 4G, but the Verizon and Sprint versions do not. All versions of the 4GS now have dual radios and if you have the Verizon or Sprint version you can have a sim card added for travel overseas.
But back to the op's question. If your son has an iPhone 4G with a sim card then that is an AT&T iPhone and it won't work on Verizon's network. If he does decide to get another phone with Verizon the rep can transfer his contacts to the new phone.
The AT&T is just renamed 4g it's no faster
None of the iphones have 4G, apple played on the name but the iphone 4 or 4S is the fourth generation device but does not have a 4G radio, the iPhone 5 is rumored to possibly have it but as of now no iphone supports 4G..
Now the part about the device that the OP have may be a ATT version may be the case or they are simply talking about the sim for the international signal that av Verizon version supports... I think it is getting crazy with Apple releasing the same devices on different carriers that support different features.
The ATT iphone 4S has HSPA+ 14 which ATT has "coined" as "4G" with enhanced backhaul. HSPA+ is just an enhanced version of 3G.
you all just gave me a headache!!!
HSPA + has been officially certified by the international cell phone commission as being 4G. It's just technology than WiMax, which Sprint uses and LTE, which Verizon uses and AT&T also uses.
Verizon's EVDO was just an enhanced version of 2G, 2.5G actually, but nobody challenged it as being 3G did they even though it was never certified as being a 3G technolgy?
Some of the features that differ between carriers are due to network differences. Like the AT&T iPhone being able to do voice and data simultaneously while the Verizon and Sprint versions do not.
Also, while the ITE confirmed HSPA+ as "4G", no one's current 4G offerings fit the original definition of 4G (which would keep pace with DOCSIS 3 and Fiber home internet connections. LTE is the only technology that will make the switch to the original definition of 4G without leaving older LTE devices to rot and making newer devices suffer as older devices are retired, while HSPA+'s crossover to the original definition of 4G will be hampered by the plethora of current HSPA+ devices that won't support faster speeds, similar to how an 802.11n network is slowed by A, B, and G devices.
And AT&T's HSPA+ is still slower, in an overall sense, than the "slow" Verizon 3G network.
