Even worse, this phone looks to use the same small sensors and small lenses all smartphones are saddled with. A bulkier form factor and slapping Leica’s logo doesn’t make a “real” camera. Big sensors and big lenses do.
These days though most people don't care about more pixels, but better filters. There's still a ways to go before smartphone cameras get there. (imagine building in Moment-type lenses in smartphone cameras).
My ideal phone camera would be a single APS-C sized sensor replacing all three current iPhone cameras. The lens should be a f1.2, 50mm equivalent pancake. Yes that’s hard to do, but using fancy fresnel lenses and a pile of CPU to correct things I bet you could make it work. Make the sensor ~30 megapixels so you can digital zoom.
Add a mount that includes communication so if you want you can add fancy lenses and they can be active parts of the autofocus system.
This design actually competes with low-end mirrorless and is probably even possible to build (the lens might be pushing what’s possible, but I bet we can get close).