To me, both seem to be similar as far as their viscosities. I was a little surprised with my sample of the Pinnacle Spray Wax that it is a watery-thin solution. Initially thought it might've been a little bit "thicker". Guess not.
I would "assume" the Spray Wax would be a longer lasting product versus the Crystal Mist Spray.
I do like the Crystal Mist Spray myself, very nice product.
I haven't done a side by side comparison to judge either slickness, or longevity of the pair.
In either case, I'd guess that neither were truly designed to be highly durable long lasting products. I would judge both as being ideal for a show type vehicle, to be used just before such events.
Or for an everyday vehicle post wash to be used as a quick enhancement compared to other products.