A faster spin speed means you can get things cleaner with a lower temperature of water. Using a fast spin also extracts water, meaning that the clothes come out nearly dry. Generally, anything over 1000 rpm is very good.
Asko W6884ECO: 1800rpm
2. 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.
75% have it
3. Has a load sensor
Machines with a load sensor can weigh the load and adjust settings accordingly. This means you don't have to feel as guilty about doing a smaller load as the machine will use less water.
35% have it
4. number of cycle programs
With a wider range of programs to choose from you can be more specific and choose the best, most economic program for your needs.
Gorenje W9865E: 31
5. has a pause option
This means you can stop the machine if you want to add something you forgot, or get something out that you need urgently.
33% have it
Samsung WF70F5E5P4W: 800mm
7. laundry capacity
More weight capacity helps if you want to wash something heavy like curtains. A traditional household machine can hold around 6kg, so with a machine much bigger you may waste energy using it when only half full.
Samsung WF405ATPASU: 17kg
Hoover OPH 716DF: 60mm
9. front loading machine
Front loading machines are good as you can use the space above and sometimes stack a dryer on top. In general front loading machines use less energy, using less water by only partly filling the drum and obtaining higher spin speeds which clean without requiring as much heat.
85% have it
10. has a dot matrix display
Dot matrix displays can show important text or graphics using a matrix of lights or mechanical indicators like the display on a calculator.
87% have it
11. maximum delay start
This is the maximum amount of time you can set the machine to begin in the future.
IFB AW7201RB: 48hrs
Whirlpool AWE 8840: 400mm
13. has delay start option
With a delay start option you can schedule the machine to begin at a later time. You can also set the machine to wash at night if your electricity is cheaper outside of peak times.
79% have it
14. has an end of cycle signal
The machine will let you know when it is finished with an alarm or even by playing a tune.