Is iPhone warranty valid in Italy for devices purchased in the USA?

Hi, yes, an iPhone purchased in the US has a limited warranty in effect in many other countries. Apple Authorized Service Providers have the right to refuse service so, you may be restricted to Apple Retail Stores or sending your device to a regional service center.

https://store.apple.com/Catalog/Images/worldwidewarranty.html

If warranty service is required you may have to accept a suitable replacement device. For example iPhones in the US do not have a physical SIM slot but have 2 eSIMs. You may receive an iPhone with an eSIM and SIM slot as a warranty replacement.

No one here works for Apple or has the authority to alter Apple’s written warranty. Your best resource will be to ask an Apple Store manager your questions. You will not be the first Apple owner with such concerns.

I’ve also had warranty repairs done while overseas, twice in UK and earlier this year in France. All three repairs were handled without issue. But, Italy could be a different user experience so ask a manager. Safe travels.

All iPhone models are world phones, so you can use them almost anywhere. Whether you are a GSM or CDMA network customer, you can roam internationally on GSM networks in over 200 countries or regions around the world. Availability of LTE data varies in some countries or regions and depends on carrier support for certain LTE radio frequencies. Contact your wireless carrier for more information regarding international roaming policies and rates.

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1. If you desire to buy a brand-new iPhone then
   1. Purchase Apple Products from the Apple Online Store, Apple Retail Stores, and many Apple-authorized resellers and wireless service providers.
   2. If you choose "Connect to a carrier later" (Unlocked iPhone) when you buy your iPhone, you can activate your service when you receive your device.
   3. If you're asked to transfer your SIM, follow the onscreen instructions to transfer service from your previous iPhone. To learn more, visit About eSIM on iPhone - Apple Support.
2. IMPORTANT RESTRICTION FOR iPHONE, iPAD, APPLE TV, AND HOMEPOD SERVICE.
   1. Apple may restrict warranty service for iPhone, iPad, Apple TV, and HomePod to the country where Apple or its Authorized Distributors originally sold the device.
3. IMEI Registration: In some countries, you might need to register the IMEI of your phone with the local telecommunications authority. This requirement varies by country and may have strict IMEI registration policies for phones brought from abroad. Check the specific regulations of the country where you intend to use the phone.

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Apple - One Year Limited Warranty - Worldwide

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apple international warranty - Google-