内容来源：https://www.engadget.com/2281332/pros-cons-import-foreign-phone-us/

内容总结：

进口海外手机在美国使用的利与弊

在美国，智能手机的选择并不少，从iPhone到Pixel应有尽有。但也有一些有趣的手机永远不会出现在美国商店里，比如小米的Mix Fold折叠屏系列、荣耀的Magic系列以及OPPO的Find X系列，这些机型提供了美国市场一般不常见的独特设计或功能。

虽然这类手机在美国很难买到，但通过进口渠道入手是可行的。不过，从海外带入手机也有其弊端，你可能遇到与本地运营商不兼容或无法获得保修等问题。如果你正在考虑购买进口手机，有几个要点需要提前确认。

购买海外手机前需要了解的事项

近年来，购买进口手机已经容易了许多。大多数智能手机现在都设计为可在全球多数蜂窝频段上工作。但仍有一些手机可能无法兼容美国运营商使用的频段。首先要检查你考虑购买的手机是否与你的运营商频段兼容。买错版本可能导致你只能停留在LTE网络，无法使用5G。

运营商特定功能也可能带来问题。Wi-Fi通话、VoLTE和可视化语音信箱等功能通常需要每台设备获得认证。因此，即使你的进口手机能正常接入运营商的5G网络，也可能无法在美国使用所有这些功能。网络要求也可能发生变化，今天运行正常的机型未来可能遇到问题。值得去Reddit等论坛看看已经购买该机型的人怎么说。

其次是软件更新问题。Android更新的推送可能与运营商或地区绑定。此外，部分中国手机不兼容Google Play服务，而这是大多数Android用户所期待的核心体验。你可能需要手动安装更新，软件中可能还包含与你无关（或看不懂）的中文应用和服务。

此外，在美国为这些手机获得保修服务可能并不容易。一些品牌在美国没有官方代表处，这也意味着没有客户支持。遇到电池耗尽或屏幕碎裂等问题时，可能需要将手机送到未经制造商官方授权的第三方维修店。

进口智能手机的好处

如果你能接受这些麻烦，从海外进口手机可以带来很多乐趣，让你接触到美国市场没有的新硬件。有很多中国公司正在推出令人兴奋的产品，比如三屏折叠手机、配备单反级相机的旗舰机以及超大容量电池的设备。小米18 Fold是一款新的折叠屏手机，外观与iPhone Duo相似，但电池更大、相机更好，价格也更低（目前约合1640美元），但如果你想在美国使用，就需要从海外购买。

对于追求最新机型的人来说，进口手机往往能让你在美国正式上市之前就拿到手。此外，许多国际版本仍支持两张实体SIM卡——而大多数在美国销售的手机已经放弃这一功能，转而采用eSIM。如果你不介意潜在的缺点，这会是一种值得的体验。但如果你看重附近有官方支持、并确保所有功能在网络上正常运行，那么购买在本国获得官方支持的手机更为省心。

中文翻译：

进口外国手机到美国的利弊

在国外购买新手机之前，有很多因素需要考虑。

在美国，从iPhone到Pixel，有众多智能手机可供选择。但也有一些非常有趣的手机，你在美国商店里永远找不到。小米的折叠屏手机如Mix Fold、荣耀的Magic系列和OPPO的Find X手机就是几个例子，它们提供了美国市场上一般见不到的独特设计或功能。

虽然这类手机在美国很难找到，但进口是可行的，不过从国外带手机也有其弊端。你可能会遇到手机无法兼容本地运营商或无法获得保修等问题。如果你正在考虑购买进口手机，一定要先确认几点。

从其他国家购买手机前你需要了解的事项

近年来，购买进口手机已经容易了很多。大多数智能手机现在都设计为可在全球大多数蜂窝频段上使用。不过，有些手机可能无法兼容你的美国运营商所使用的频段。首先要检查你考虑购买的手机是否兼容你运营商的频段。买错版本可能会导致你只能停留在LTE网络上，无法使用5G。

运营商特定功能也可能引发问题。Wi-Fi通话、VoLTE和可视语音信箱等功能通常需要每台设备获得认证。因此，即使你的进口手机能在运营商的5G网络上正常使用，它在美国也可能无法使用所有这些功能。网络要求也可能发生变化，所以今天能正常使用的型号将来可能会遇到问题。值得去Reddit等论坛看看已经购买你想买的那款手机的人怎么说。

然后是软件更新的问题；安卓更新的推送可能与运营商或地区绑定。此外，一些中国手机不兼容Google Play服务，而这是大多数人所期望的安卓体验的核心部分。你可能需要手动安装更新，而且软件中可能包含与你无关（或看不懂）的中文应用和服务。

另外，在美国为这些手机获得保修服务可能并不容易。其中一些品牌在美国没有官方代表处，这也意味着没有客户支持。处理电池耗尽或屏幕碎裂等问题时，可能需要把手机送到未经制造商官方授权的第三方维修店。

进口智能手机的好处

如果你能接受这些麻烦，从国外进口手机可以带来很多乐趣，让你接触到美国买不到的新硬件。有很多中国公司推出了令人兴奋的产品，比如三屏折叠手机、拥有单反级相机的旗舰机和超大容量电池的设备。小米18 Fold是一款新的折叠屏手机，看起来与iPhone Duo相似，但电池更大、相机更好。它的价格也更低（目前约合1，640美元），但如果你想在美国使用，就需要从国外购买。

对于那些想要最新发布产品的人来说，进口手机往往能让你在美国正式上市之前就拿到手。此外，许多国际版本仍然支持两张实体SIM卡——而大多数在美国销售的手机已经放弃了这一功能，转而使用eSIM。如果你不介意潜在的缺点，这可能是一次值得的体验。但如果你看重附近有官方支持、并且确定所有功能都能在你的网络上正常使用，那么购买在你所在国家有官方支持的手机会更省心。

英文来源：

The pros and cons of importing foreign phones to the US
There's a lot to consider before buying a new phone from abroad.
There are plenty of smartphone options to choose from in the US, from the iPhone to the Pixel. But there are also really interesting phones you'll never find in an American store. Xiaomi's foldables like the Mix Fold, Honor's Magic series and OPPO's Find X phones are a few examples that offer unique designs or features not generally seen in the US.
While phones like these are harder to find in the country, it's possible to import them, but bringing a phone from abroad has its downsides. You may have problems using your phone with local carriers or getting warranty coverage, among other trouble. If you're considering an imported phone, always check a few points first.
What you should know before buying a phone from another country
Buying an imported phone has become a lot easier in recent years. Most smartphones are now designed to work globally on most cellular bands. Still, some phones may not work with those used by your US carrier. Start by checking whether the phone you're considering is compatible with your carrier's frequency bands. Buying the wrong version could leave you stuck on the LTE network with no 5G support.
Carrier-specific features can cause issues too. Features like Wi-Fi calling, VoLTE and visual voicemail usually require certification for each device. So even if your imported phone works fine on your carrier's 5G network, it might not be able to access all these features in the US. Network requirements may also change, so a model that works fine today may run into problems in the future. It's worth checking forums like Reddit to see what people who've bought the phone you want have to say.
Then there are software updates; the rollout of Android updates may be tied to carriers or regions. Also, some Chinese phones are not compatible with Google Play Services, which are a core part of the Android experience most people expect. You may have to install updates manually, and the software might include Chinese apps and services that aren't relevant to you (or readable).
Additionally, getting warranty service in the US for these phones may not be easy. Some of these brands have no official representation in the country, which also means no customer support. Dealing with problems like a dead battery or a cracked screen may require taking your phone to a third-party repair shop with no official authorization from the manufacturer.
The benefits of importing a smartphone
If you're okay with all these hassles, importing a phone from abroad can be a lot of fun and open you up to new hardware that isn't available in the US. There are a lot of Chinese companies putting out exciting products, like three-screen foldables, flagships with DSLR-quality cameras and devices with massive batteries. The Xiaomi 18 Fold is a new foldable phone that looks similar to the iPhone Duo, but it has a bigger battery and better cameras. It also costs less (the equivalent of about $1,640 currently), but you'll need to buy it abroad if you want to use it in the US.
For those who want the latest releases, importing a phone often gives you the chance to get it before the official US launch. Also, many international models still support two physical SIM cards — a feature that most phones sold in the US have already ditched in favor of eSIM. If you don't mind the potential drawbacks, it can be a rewarding experience. But if it's important that you have official support nearby and know all features will work properly on your network, it's easier to buy a phone that's officially supported in your country.