: Ensure the device is not iCloud locked . It should arrive at the "Hello" setup screen; if it requires a previous owner's ID, it is unusable.
: Aim for a capacity of 80% or higher . If not mentioned in the listing, ask the seller for a battery health report.
: Like-new condition with no visible signs of wear from 20cm away. Includes a one-year warranty .
When browsing listings outside the official "Certified" program, use these criteria to minimize risk:
Price: