Comfortrack Honeycomb Blinds vs Energytrack

What is the difference between the cofortrack and energytrack honeycomb blinds? The descriptions appear to be identical but the prices are a bit different.

The EnergyTrack Honeycomb Blinds are our private label version of Comfortex's ComforTrack Side Track System Cell Shades. The fabric, headrail, and components are the same on the EnergyTrack. The product just comes without the ComforTrack label.

ComforTrack's side track system adds an additional barrier of insulation for added energy savings that that of standard cell shades. Honeycomb cellular blinds are excellent insulators. Adding the side track on the cell shades blocks the additional energy loss on the sides of the cell shades between the shade and the window frame.