Genuine prototypes have distinct features that separate them from standard retail models:

: Authentic units often run SwitchBoard (Apple's internal testing OS) or unreleased beta builds of iOS.

: Look for stickers or engravings like "PE Golden" or specific PRB/DVT identifiers on the back.

: Sites like iGotOffer provide price guides and historical data for older iPhone models, which can help gauge value. What to Identify