Luke held an AMA on Reddit and confirmed the prototypes were fitted with off the shelf RK3399 CPUs; the developer units that are in production at the moment will be the first Pinephone Pros fitted with RK3399S CPUs. It will be interesting to see what, if any, differences there are in power consumption when Megi gets a developer unit.
See: https://www.reddit.com/r/linux/comments/...&context=3
See: https://www.reddit.com/r/linux/comments/...&context=3