[Godel_unicode]

The kraken case costs as much as a GoPro, iPhone stabilization isn't as good as GoPro stabilization, if you want GoPro-like wide angle shots you need to pair that case with a $1000+ phone. You're also limited to the capacity of your phone since essentially no phone has removable storage. Ditto battery, although with USB PD that's less of a problem. iPhones also don't shoot log color profile, so color correction is painful for video.

The paralenz can't shoot high frame rate, so slo-mo looks choppy and requires serious post processing. It's stabilization is a joke compared to the GoPro, it doesn't shoot flat color so color grading is painful, it has no screen for checking your framing, and it costs roughly twice as much.

Edit: the quality of the glass in the paralenz is also pretty painful, the vignetting in that video and dynamic range are pretty unfortunate.