: Prototypes usually run "SwitchBoard," a non-consumer, internal OS used for factory testing rather than a standard iOS build.
iPhone 8 prototype is a high-stakes hobby reserved for dedicated Apple collectors. Because these devices are property of Apple and were never meant for public sale, they are rare, expensive, and often legally "gray." As of , the
: Rare PRB stage prototypes may feature different SoC (System on Chip) revisions, censored battery regulatory info, and non-production Taptic Engines.