The difference lies in the fabric structure and the insulating effect. A standard pleated blind consists of a single layer of pleated fabric and offers light control and privacy, but limited insulation.
A honeycomb pleated blind (Duette® Shades) consists of two layers of fabric that together form a honeycomb structure. The still air in the cells provides very good thermal insulation, so that heat stays outside in summer and inside in winter, and dampens sound. The cords run invisibly between the fabric layers. If energy saving and comfort are important to you, a honeycomb pleated blind is the better choice.