It has a flip-up screen, 4K 30 fps video and animal eye-tracking.
The a6400 comes with a touchscreen that flips all the way around — 180 degrees — so you get a preview of how you’ll look as you’re filming your latest video. Ideal for vloggers.
Includes a hot shoe mount and a microphone jack, as well as 4K video recording at 24 or 30 fps.
Same hybrid autofocus system Sony also uses in its bigger, more expensive Alpha cameras like the A7 III, to accomplish what the company claims is the “world’s fastest 0.02 second AF acquisition speed”.
- mid-range
- APS-C
- 24-megapixel
- flip-up screen
- 4K 30 fps video
- captures 4K at the sensor’s full resolution
- shoots 1080p at up to 120 fps
- animal eye-tracking.
- microphone port (but no headphone jack, sigh)
- USB charging (yayy)
Why is it called the a6400 when its predecessors are a6300and a6500? It’s real predecessor is the a5100 and replaces the a6300. Sits below the a6500.
Source:
https://www.theverge.com/2019/1/15/18184037/sony-a6400-mirrorless-camera-selfie-screen-youtube-price