1.has a direct drive motor
A direct drive motor has no belt and pulley. This means it wastes less power in friction, are less prone to breakdowns and have longer lifetimes in general. They are able to operate more quietly and with less vibration.
2.annual power consumption
The more power per year a device consumes, the less energy efficient it is, making it more costly over time.
3.has top energy efficiency rating
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.
4.has a hot water connection
A hot water connection means that you can provide the machine with hot water from your main hot water supply. This can be faster than an internal heater and can save money if you have a cheap and efficient water heater.
We consider a lower weight better because lighter devices are more comfortable to carry. A lower weight is also an advantage for home appliances, as it makes transportation easier, and for many other types of products.
Volume is the quantity of three-dimensional space enclosed by the product's chassis or, in simpler terms, the space the product occupies.