If I buy an iPhone 15 from USA will I be able to use it in Malaysia?

You'll likely be denied warranty service on it, and would need to either use a roaming plan from an USA carrier or find a local one which provides eSIM support.

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1. That's whether the iPhone is locked to a carrier or not.

2. If the iPhone is locked, you'll only be able to use one from that carrier. Otherwise, get one in the country you'll be using it in most often.

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