the best is to watch videos from my channel and judge with your own eyes. I like more the products made by Ambarella so my answer is SJ5000 +. And also I like products which have firmwares which can be modified by people and with Ambarella are more chances to have for example much higher bitrate with a custom modified firmware. For SJ5000 Plus some people don't like the yellow tint of images, same style as GoPro, but I consider they added a little too much gain/brightness in actual firmware and because of this the SJ5000 + images are looking a little foggy compared to SJ5000 WiFi which are a little too sharp