OK, so the camera came in finally, with the GoPro quality lens (needed a second shipment, 1st one was returnd for some odd reason). Here are a few comparison screenshots of the Split and the JooVuu X. You all should draw your own conclusions, my best guess is to not explore it any further...... well, not for dashcam anyway.
Split:
JooVuu X:
I passed these (almost) standing cars at about 65 Km/h.
Rest assured, the Split - lens is not oof, its just not good enough to pick a sharp screenshot from the footage (as is the case with the Foxeer Legend 3), and it was recorded at 1080p/30 and 20MB/s bitrate. The JooVuu X at 1080p/60 and 28MB/s.
The Split was placed close to the window, as where the JooVuu X at about 25~30 cm.
I accidentally had the exposure value on +0.2, and 60Hz / NTSC, maybe that's what causing the weird flat colors? I don't know, but in my book, when it comes to capturing some offender, the JooVuu still rules, to bad it's still not super stable yet.
I will try again monday on 1080p/60, 0.0 exposure value and 50Hz / PAL, maybe the footage will be a little less flat, but I expect no improvement in reading license plates.
If you dó want to use it as a dashcam, make sure to use a battery or supercapacitor to keep date/time and to save the whole file.
Without batt you will loose 3~6 seconds at the end of the recording.....
Even at narrowest lens setting, the distortion is apocalyptical....
Maybe the Runcam lens is better??? Anyone?