Dpreview just published the full Sony a6400 review. The camera earned the Gold Award and this is what the DP team writes:
Senior Editor Barney Britton says:
The story of the a6400 is really all about the autofocus system. With a high-quality lens attached, the a6400 is a dream camera for casual portraiture. I don’t love the ergonomics, but when you hardly have to fiddle with any buttons to get the shot, these sorts of handling frustrations matter much less.
Science Editor Rishi Sanyal says:
The a6400 is an unprecedentedly capable camera for its price point. Parents, enthusiasts and pros alike will appreciate the class-leading pro-grade AF system that’s also simple enough to use you can just ‘set and forget’. Image quality is up there with the best. Detailed 4K video and easy tap-to-track autofocus makes for a compelling run-and-gun video camera, though you’ll want to stick to stabilized lenses. To sum up: the a6400 truly impresses and is arguably more capable than many cameras at far higher price points. My only concern is its usability: I often find myself using it more as a point-and-shoot, although this isn’t necessarily a bad thing.