As I analyze these two holsters I noticed the Bianchi must have a shirt worn outside the trousers, belt and clip.
The DeSantis you have the option to tuck a shirt between the holster and longer clip which conceals the entire handgun, holster and all you see is the clip 'J-hooks' on the belt. It might become more difficult to draw having to untuck that area of a shirt and be awkward to 'holster/re-holster' when necessary. But it can be used as the Bianchi with an outside shirt.
N8 Tactical - This would also work with a tucked in T-shirt: