The more power per year a device consumes, the less energy efficient it is, making it more costly over time.
Audible noise is the noise that a device produces while in operation. Reduced audible noise improves quality.
A reversible door is useful if the machine is in a corner, so you can make it open more conveniently. It also means the door is easy to remove and can be replaced if needed.
The appliance is either Energy Star Certified, or has an EU energy efficiency rating of A++ or A+++. This means it consumes around 20-30% less energy than is required by the minimum local standards for energy efficiency.
This is the amount the refrigerator can hold in litres.
LG InstaView ThinQ
Adjustable shelves are ones that can be adjusted to different heights, removed or retracted.
Spill-proof shelves have a raised lip, which will contain a spill to one shelf.
Dedicated vegetable drawers keep vegetables fresher for longer.
This is the amount the freezer can hold as measured in litres.
The more compartments the better the opportunity to keep the freezer organised.