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. 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
Samsung WF70F5E5P4W: 800mm
Hoover OPH 716DF: 60mm
5. 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
6. annual power consumption
The more power per year a device consumes, the less energy efficient it is, making it more costly over time.
Kenmore 41573: 87kWh
7. noise level spin
During a spin, machines can get quite noisy. With less noise the machine is not as distracting and you won't be restricted to using it at certain times.
Haier MS1050A: 45dB
8. noise level wash
With a lower noise level for washing you can worry less about disruption and may be able to do a wash at night or while reading.
Asko W6984Fi: 41dB
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 transparent door
With a transparent door you can look inside the machine and see what laundry is inside.
87% have it
11. water consumption annual
Machines which use less water are good for the environment and can save you money in utility bills.
Hotpoint WMFG 8337G: 1091l
12. 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.