Which i phone will work in both us and china? I live in Shanghai and in NY. I have heard many suggestions for a phone that will work in both places and avoid huge roaming charges. Should I buy a phone in US or in china? Some say they switch Sim cards but apple tells me this is only possible in new iphone 4. but amazon sells Iphone 3 and 4 unlocked. Is unlocked the same as switch sim cards? some say the only way to buy is to go to Hong Kong. I am very confused. Which i phone will work in both us and china? I live in Shanghai and in NY. I have heard many suggestions for a phone that will work in both places and avoid huge roaming charges. Should I buy a... » Read More Which i phone will work in both us and china? I live in Shanghai and in NY. I have heard many suggestions for a phone that will work in both places and avoid huge roaming charges. Should I buy a phone in US or in china? Some say they switch Sim cards but apple tells me this is only possible in new iphone 4. but amazon sells Iphone 3 and 4 unlocked. Is unlocked the same as switch sim cards? some say the only way to buy is to go to Hong Kong. I am very confused. « Show Less
221526
I am looking for the same information, a phone that can change language, Chinese and English. Any suggestions on which Apple iPhone to buy?
221527
都可以。这&#27454;应该是CDMA௚0;。你可以选;一款普通的IPHONE4，就是wcdmaį40;，可以用ೕ2;通的3G信号z90;或者，全ஷ2;2G的。
472657
Hello! I don't know what you mean with "open phone", a unlocked phone is a phone that can work with any company in every place of the world. A phone purchased in a AT&T; store only works with AT&T; mobile system and within USA (that is a locked phone). I bought a Samsung S4 unlocked (international version) and I'm using it in Venezuela.. so I highly recommend you to buy a unlocked phone. It should works perfectly in China.
448928
Around the world cell phone operate on three different frequencies. If your phone is triband (most new ones are) this means it will work anywhere in the world. Probably not that important unless you travel a lot. Cell phones are locked so that it will only be compatable with individual providers. If it is locked with Cingular it will not work with Verizon. There are methods available to unlock them, but more than likely too advanced for the common consumer, unless you have an electronics knowledge base, then if that is the case....google, "unlock cellphone."
1697691
Yes, the iPhone 4S is a combination phone that is both CDMA and GSM. It uses a SIM card that can be replaced (generally sourced from your carrier) to use with any system. Using the USA SIM card overseas will incurr massive international charges, so you can buy an international card to use overseas. Of course, you will have a different phone number for that.
1739185
Check the phone spec for the covered frequencies and check Ireland operator for their frequencies. In Ireland it may be like elsewhere in Europe. If the frequencies offered by the phone matches the one of Ireland operators then your're OK. Then you need to check if Ireland frequency do match the European ones (Most probable case). Then you need to find prepaid cards on in Ireland or from an European operator that operates in Ireland to buy only the SIM card. Most of the time they also offer a SIM card with pre-paid amount of phone time. From there, it ll depends on if you stay a long time in Ireland or not. For short period pre-paid card for unlocks phones must be purchased. For longer period, buying a SIM for unlocked phones, a SIM card that can be refilled of course. The problem in Europe is there are few offers of SIM / Pre-paid cards for unlocked phones. Most of the time the SIM / Pre-paid solution offered works on a locked phone of that company. Some companies may offer a phone as cheap as this one and offer better use of the features. This phone is good, but not all features are compatible with the operator you will chose. Good luck!
240131
My phones its international unlocked so you can insert a Sim card! U.S. cellular doesn't carry phones that u can insert sim I dont believe so only ATT, T-Mobile, and Iwireless! You can ask a U.S. Cellular store! Im guessing it doesnt work with them but you can always ask! Just go in and show them the phone specs and they should be able to tell you!
1484617
I use the phone oversea in Hong Kong and China, it works find. And I tried with with the AT&T; pre-paid card on the phone also.
1095547
The phone that I bought was a remanufactured Iphone that was made up of parts from quite a few different phones. Apple would not work on it and they said that it was junk. junked it and bought a good one. I would not spend a dime on one. Would it work In Argentina? I would say if it did it would be no better than the one that I had here.
824148
The only ones who could definitely answer your question would be people who have been to Georgia and tried this phone there. I have never been there so I don't know for sure. This is an "international unlocked" phone so I feel it ought to work just fine, but I couldn't guarantee that.I personally have used this phone with absolutely no problem in: USA, Singapore, Hong Kong, So Korea, Indonesia, Taiwan. My experience is that it has always worked everywhere I tried to use it, no problem whatsoever, but I have never tried it in Georgia.
1970229
The problem seems to be the frequency bands used. They are not the same in the US and Europe. Therefore 4G might function in the US but not in Europe and vice versa. Buying a carrier free phone that was programmed in Europe leads automatically to that problem in the US. I believe that your phone was unlocked in Europe and is therefore using the frequencies from over there (800 / 1800 / 2600) whereas the US bands are 750/850/2100 and so on. So there is no problem to use the phone but the 4G capability might not work. It might be better to buy a 4G with US specification (but locked to a provider).
1636556
Hi, I'm not sure. You might want to check with Verizon customer service. They did tell me the phone I buy has to be liked with Verizon. I never tried to switch SIM cards. The phone is good though. I'm currently using iphone5S , but I didn't sell 4S. The battery's been working well for a long time. The charger and earphones looked generic and earphones collapsed soon.
2003495
We are in China now. We bought 2 of these before we left. We did unlock our phones before we left the States and neither of these chips worked for us when we put them in our phones. We had to rebuy sim chips once we arrived here. I wouldn't purchase this.
921485
Hello, regular phones are the ones connected to operators in USA (i.e. Veryzon). The international ones should be unlocked to be used in other countries, where you can just plug in a sim card. I have bought an internation unlocked version because I leave in Brazil. Hope Ive helped you.
380196
I apologize but I do not know the answer to that question. This phone was issued through sprint in the United States which uses CDMA, but I am unsure what the situation would be for use in China.
173879
We only used iphone 3g ,the phone must be unlocked by a carrier.we only activated the sim card when we arrived in the USA and did not have any problems with he activation.
212537
Hi Edward, this phone will work world wide, dependant only on your service provider offering service (either directly or through a third-party) in that area. This phone was originally intended for European and Asian based users who can currently make use of the new 3G technology features. These features will not work in the US at this time however, but they claim this will soon be changing. Regards, Charlie CMiT Systems For more reviews of the latest cellular phones please visit http://www.cellphoneranking.com/
1423410
Hello Indira, Thank You for contacting us! I am sorry if there was any confusion. This phone is locked to the carrier listed, Verizon. When we list a cellular carrier on the title of our items, this indicates that the phone is locked and can only be used with that carrier. If you are looking for an Unlocked GSM phone or a phone for a specific carrier, you can return to our listings. Please use the search field on the left hand side and search ""unlocked"" or for your preferred carrier's name, such as "Verizon," "Sprint," "T-Mobile," ""AT&T,"" or others. Our Unlocked phones are GSM only and will not work on networks like Sprint, Verizon, US Cellular, or MVNOs using the Sprint or Verizon network. For international travelers: Unlocked phones will work on most international GSM networks, but may have limited access, depending on carrier. Thank You,