@Bonn88 - could you clarify "the night?" That's a very different question if you're on a farm than if you're in a big city.

I just figured what the plus in 4K+ refers too. It can't be the 60p frame rate in 4K, because 4K is a resolution, not a frame rate. Well, it turns out that the camera can shoot in a resolution that is greater than 4K. It goes under the oxymoronic name of "4K HD". And the resolution is 4000 x 3008 - the full sensor. Frame rate is 30P and the bitrate is 120 Mbps.

The advantage of this resolution is that you can choose your frame in post, some right-to-left and a lot of flexibility up and down with the 16:9 frame in 3840 x 2160. When shooting quick, it is very convenient to have to worry less about composition in the field.

Night video coming soon. You will be surprised.

Zero post-processing. No noise, good color, and no smearing.

My settings: 4K HD (4000 x 3008, 120 Mbps, 30p), AWB, auto shutter, medium sharpness, -1.5 EV, max ISO 800, Yi color.

Also, does the hack give you a choice of bitrates or can you edit the file and set the bitrate to what you want?

I agree with eatstoomuchjam that the elevated bitrate does not seem to make any visible difference. The full sensor 4K "HD" mode is at 120 Mbps (30P), so that is already high.

@DrDave You definitely can power the camera externally - without even a battery inside. It's a standard usb-c port and it is 5 volts. No limit on recording time. I have yet to experience overheating issues either - neither shut down nor degradation of the picture.

It is 23.976.

And the camera now has optional grid lines (thirds)!

There is a lot of lens distortion which is pretty standard for an action camera. The camera has an option to correct it in software. That helps a bit, but doesn't remove it completely.

I have both. You can clearly do more, except rain videos, with the Z. And it shoots real DCI 4K 24p. The Z is small enough for a smaller gimbal, is better in low light, has a true flat mode, and no lens distortion if one uses the right uwa lens (like the SLR magic 8mm).

The Yi does have 4K 60P, which enables nice slow motion at high resolution and quality and can be used on a cell-phone gimbal.

Each is so cheap, at the right sale, that it is not crazy to have both, given their different capabilities in small packages.

Slow motion, 4K, and low light:

From 4K 60P. I used Neat Video to reduce the noise.

@akaloith I have never had any problems copying files via the usb-c port to my computer's usb3 port. The average speed is 40 MB/s. Nor have I seen any complaints about this from others. Indeed, the Yi provides faster transfers than almost all available cameras.

You claim that all your other devices do not have a problem - do any have a usb-c port? are you using a usb3 port on your computer? What speed are you getting from the Yi before it stops? What speed do you get when you use your card reader? When people ask for help they need to provide more details.

Usually the holdup in reading is due to the computer, which is not able to keep up.

I haven't found the door on any of my 4k+'s to be flimsy. I always download straight from the card...

sometimes it works ok sometimes it stops like in the video above. maybe a firmware problem? maybe a cable problem? have to try a different cable, computer...