The Oppo Find X3 Pro can do 4K at 60fps on the primary and ultrawide snappers. The telephoto camera will max out at 4K at 30fps. The micro cam supports 1080p@30fps capturing, but we can't really imagine what you are going to shoot with it.
There is no 8K option on the Find X3 Pro, though we can't really say we are missing it.
All cameras feature always-on electronic stabilization, while the main camera also benefits from additional optical stabilization. Super Steady action camera-like mode is available, if you need that (it crops a lot from the ultrawide or the main camera).
Finally, audio is always captured stereo with about 290Kbps bitrate. The mics are doing a wonderful job, and the quality is great with rich sound and deep bass, if needed.
Let's talk quality now.
The main camera captures magnificent 4K videos at both 30fps and 60fps frame rates. The resolved detail is great, the sharpening is just the right amount, and the videos look very natural. The colors always stay true to life, the dynamic range is high but not to extremes, and the contrast is superb. These are among the best videos you can shoot on a phone, and let's not forget EIS is always involved.
The ultrawide camera, quite expectedly, has the same outstanding video quality as the main one. The footage, no matter 30fps or 60fps, is always rich in detail, with low noise levels, excellent colors, contrast, and well-handled dynamic.
The telephoto camera shoots nice 2x zoomed videos. The detail is a bit lower if compared to the other cameras, but good, nevertheless. The noise is low enough. The colors are sometimes a bit warmer than they should be, but you can notice this only if you compare it to videos from the other cameras. Other than that - contrast, colors, dynamic range - are all commendable.
You can also shoot 5x digitally zoomed videos with the tele camera. They aren't that bad, but they are lacking in detail big time. Maybe if you lower the resolution down to 1080p, you may get satisfying results.
The low-light videos from the main camera at 4K@30fps are really good. Just like the still images, the clips show the scene as is - rich in detail, with low noise, and true to reality exposure and color saturation.
Using the AI Highlight Video option helps if you want to boost the brightness and the color saturation, but those are shot at 1080p resolution. This mode does exactly what it promises - a minor boost in exposure and the colors, especially those coming from light sources, but nothing that may look unnatural or over-processed. We can imagine using this in busy city streets at night.
The ultrawide camera captures a bit noisier 4K@30fps videos at night. They do retain good colors, and the gentle noise reduction helps for some good detail levels, but the noise hikes around the corners. They are very much usable but stellar they are not.
AI Highlight Video option is available on the ultrawide camera, too, and it saves a tiny bit better 1080p video. There is a minor boost in both shadows and well-lit areas, and some colors pop a bit more. But that's about it. Once again, it could be quite good when used in busier cityscapes or streets.
Finally, the zoom camera can also offer usable 4K at 30fps at night, though the AI option is not available. Those are extremely noisy, poor in detail, and the colors are washed-out. Better use the main camera, we guess.
And here is the Oppo Find X3 Pro in our video sample database where you can compare it directly to all other phones we've reviewed.