I am working on a review of the SJ8 Pro since more than a week and so far experience is rather negative...
I confirm the same issues as
@BarryInAction for sound - it is too quiet. That can be fixed with software, but not quite pleasant. Also one of the channels is significantly louder than the other one.
Unfortunately my cam is much more troubled than what most of you report here:
- every third attempt to record 1080P @ 120fps results into freezing condition... Black screen, LEDs on and only way to recover is to pull out the battery.
- there is a weird issue with the power - it the camera is powered on two times consecutively and NO video is recorded, it will not power on again, unless I remove the battery for 30 seconds. If I record a video, even for only one second, the problem will not occur, or will occur once in 10 power cycles. This is extremely annoying, because now I always have the feeling the camera won't power on. It is not the battery, as I have tried another one (the SJ7 battery fits there
There is a gap on one of the sides, but can be used).
- menus are not too well organized
- sometimes the touch screen is not that responsive
- the camera gets quite warm when 4K is continuously recorded. But it doesn't overheat - yeasterday I was recording for 2+ hours without interruption and it was fine.
Picture quality is not great under direct sunlight - there is a pink distortion appearing. There is still a lot of footage to asses though. But not even close to what GoPro is capable of.