The more power per year a device consumes, the less energy efficient it is, making it more costly over time.
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.
You can adjust the height of the machine which means that if the floor is uneven you can level it out.
This eliminates odours while also keeping the air clean and fresh.
This is the amount the refrigerator can hold in litres.
LG InstaView ThinQ
Some freezers are better suited to preserving food in the event of a failure. This measure is the maximum amount of time the freezer can adequately store items in the event of failure, as measured in hours.
This is the amount the freezer can hold as measured in litres.
Dedicated vegetable drawers keep vegetables fresher for longer.
The more shelves the refrigerator has the more options it creates for increased storage.
A self-defrosting freezer cycles on/off periodically to melt and remove ice that would otherwise build up in the freezer's interior.