iPhone Warranty

Warranties are issued within and applicable to the country - or economic region - of purchase.

You can review the detailed T&C for any Apple hardware here:

See: Legal - Hardware Warranties - Apple

That doesn’t necessarily mean that they won’t be honored “in the spirit of goodwill” in other regions, but there IS certainly a higher level of “risk” involved in assuming so.

Additionally, the frequency “banding” varies by region. While there is a certain level of “baseline interoperability” a phone purchased in one region might not have the full capability provided by carriers in a different region.

Lastly, a carrier might possibly balk at provisioning a phone originally intended for use in another region; often citing governmental RF regulations.

For these reasons, it’s ALWAYS best to purchase a device in the region of it’s primary use.

An iPhone purchased in the US will not have warranty coverage outside the US.