The Yi Technology Yi 4k+ has been shipping for a few days and now slow motion samples have been posted online. There is no question the Yi 4k+ is the best value in action cameras today with specs that reach 4k at 60fps and up to 240fps in 720p Wide mode.
There is, of course, a resolution decrease and softness increase when it reduces the frame size to extract frames but it is within the norm and very competitive image quality wise with GoPro Hero 5 and Sony Action cam. There are nearly identical components inside the Yi 4k+ to other action cameras and the Ambarella H2 Chipset makes its debut on the Yi line with good performance.