Sheer vs daylight blinds?
Let's look at the language offered. 

Sheer


  This sheer blind allows light to flow into a room while offering privacy, so it's a great option for a window that is overlooked.


Daylight


  This daylight blind offers privacy, while still allowing some light into your room. 


Comparing the two, it would seem that Sheer is designed to allow maximum light while concealing detail. I assume that shapes may be visible, as they would be in sheer clothing. Daylight apparently allows less light to pass, but probably conceals shapes for greater privacy.