You might see a phone listed as an "International Version" at a much lower price. While they often work, there are two big risks:
Never communicate with a seller or pay outside of the Amazon.com checkout system. Guide to Amazon Refurbished Phones - Phonecheck buying phones off amazon
Amazon Renewed is a popular way to get high-end tech for less. You might see a phone listed as an
Renewed products typically come with a 90-day (or sometimes 1-year) guarantee, allowing you to return it for a full refund if it doesn't work like new. buying phones off amazon
A third-party seller is using Amazon’s warehouse. This is generally safe as Amazon handles the shipping and returns.
You’re buying directly from the retailer, which usually means the best customer service and easiest returns.