So, what is a washing machine? Basically it is just a water filed tub that shakes and spins to scrub the clothes and remove the water. Well, it is a little more complicated than that. Normally a washing machine has a large amount of functions and control; and something even an electronic timer.
You should clarify your needs, before you buy a new washing machine. You should consider different special program, if you often wash different sensitive fabrics like silk or wool. And if the amount of laundry and dirtiness varies, the same applies.
When buying a washing machine, you should not only focus on the price. The machine consumes a heavy amount of both water and energy. So you should aim for an energy-effective model; even though it might cost you a little more.
A high capacity washing machine is worth considering, if you have plenty of room and a large family. Those machines are also constructed more solid. But do only buy a large washing machine if you are sure that you can fill it up almost every time.
If you have a small apartment, you should instead consider an apartment-size washing machine. Another option is as top-loaded washing machine. Normally this type is easier to place in e.g. the bathroom.
The problem with a top-loaded washing machine is that it uses 2-3 times the water as a front-loaded washing machine. So you have larger water consumption and more heating to do. The laundry do also need more time in the dryer afterwards, because the top-loaded machine spins slower than the front-loaded.
When you are looking for a new washing machine, you should also think about the warranty. A washing machine has many moving part, so be sure that those are covered. You could also ask in the shop, if it is easy to replace spare parts.
So when buying a new washing machine, consider capacity, functions and energy-consumption. Then you are sure to find the perfect washing machine.