Yes. If they offered just the DAP part (perhaps with a lower resolution screen and a basic Android interface), it'd probably sell quite well. Meizu was apparently one of the first DAP makers in China, and they're supposedly returning to their roots with this phone. Perhaps they'll make their own iPod Touch to the iPhone; if you watch their keynote, they practically copy everything about Apple keynote presentations. The audio stuff was last, with "One More Thing..." as the leading slide... *rolls eyes*
In China, Meizu is a "major" manufacturer. It is up there with Xiaomi, Oppo, Lenovo, etc. The thing about this MX4 Pro is that it does indeed seem to have been optimized for audio. It's not just about the ES9018K2M/OPA1612, but also about the fact that it actually has advanced power filtering and jitter reduction. They're making a lot of bold claims, but who knows if they're truly real.
Indeed, smartphones are about the whole package these days; I think the G3 suffers at times in performance because of its crazy PPI screen. Otherwise, for an Android phone, it's about as high-end as it gets.
Anyway, this is all promising for portables (paired with CIEMs/IEMs). I'm still waiting for something that performs admirably for <$300, and has a better interface than the FiiO units (apologies to FiiO, but they're really quite flawed in the UI).
While my iPhone 6 allows my CIEMs and IEMs to perform fine, there is something missing to the sound --- just instinct.