Comparison Bosch SPV 4XMX20E vs Bosch SPV 2XMX01

This parameter characterizes the efficiency of electricity consumption by a dishwasher. Classes are denotet in Latin letters from A to G, in ascending order of energy consumption. Actually, more energy-efficient models have not been added to the A class, which eventually received the marking A +, A ++, A +++. Further development of technology has made it possible to go even further, and in order not to produce pluses in energy efficiency marking, manufacturers returned to the previous indices from G to A in March 2021, where А is the most energy efficient dishwasher. But also class B, C, D and even E are also quite economical (no worse than A +++). Accordingly, the 2021 models will have modern markings, while older models will be marked in the same way.

The approximate noise level produced by the dishwasher during operation. In modern models, this parameter can range from 37 – 39 dB (muffled human voice) to 59 – 60 dB (loud conversation); more detailed decoding of what sound corresponds to a particular number of decibels can be found in special tables. Anyway, the low noise level contributes to the comfortable use of the device. It is especially important if the dishwasher is to be used at night (for example, if there are reduced electricity rates at night).

The number of washing programs (modes) provided in the dishwasher. These programs may differ in duration, exposure intensity, water temperature, dish material (for example for delicate dishes), etc. For more information on the different options, see "Washing programs". And the more modes — the more advanced the device is, the more options it provides to choose from. But note that with the same number of programs, their specific set in different models may be different; these details should be clarified separately.

— Own programme. Possibility to create and save a custom programme by setting the parameters to your liking. This function is convenient because instead of setting the washing settings manually each time, it is enough to save them once in the device’s memory and then simply select a user programme from the list.

— Half load. A special programme for cases when the dishwasher is loaded with only half of its regular capacity. Running a full-fledged wash in such cases would be too wasteful; so in the half load mode, the dishwasher reduces the consumption of water, detergents and electricity, focus on a reduced amount of dishes. Such a programme is relevant mainly for roomy models (from 8 sets).

— Pre-rinsing. The "soaking" mode is a program that rinses dishes with cold water and keeps them from drying for a long time, preventing food residues from sticking to the plates. It's useful for storing unwashed dishes for a long time, and for washing heavily soiled dishes without using intensive washing programs.

— Quick wash. A quick wash programme that saves time. Designed mainly for lightly soiled dishes that do not require particularly intensive exposure; for cope with serious pollution is not suitable.

— Automatic. This program allows the dishwasher to monitor the washing proc...ess using sensors that evaluate the water composition during rinsing. The washing process ends when the water is free of impurities, ensuring optimal resource consumption. The washing mode varies by model, with some offering only standard automatic programs and others allowing users to choose the water temperature.

— Economical. A programme that reduces the consumption of water, detergents and electricity compared to a normal washing cycle. Usually, it is intended for dishes without heavy soiling and dried food residues, although individual models may have their own features of the economy mode.

— Delicate (for glass). Special programme for washing delicate dishes, especially that are made of thin glass (goblets, wine glasses, etc.). Washing is carried out at low temperatures (to avoid drops) and with minimal mechanical actions, which allows you to keep delicate dishes intact.

— Hygienic. This program is designed to destroy pathogenic bacteria and viruses effectively. It uses elevated water temperatures (around 68...70°C) that can provide a bactericidal effect without special detergents. This mode is useful for washing children's dishes and can be helpful when someone in the family is sick.

— Intensive. Special programme for washing heavily soiled dishes, such as pans with dried-on food residues. Usually, it provides increased pressure and elevated water temperature.

— Night(quiet). This program is designed for use at night or in situations where excessive noise is undesirable. It reduces the noise produced by the dishwasher by decreasing water temperature, pressure, and using other techniques depending on the model. The necessary washing efficiency is maintained by increasing the operating time, making it suitable for use at night.

— Steam treatment. Hot steam treatment can be used to soften dried food residues and sterilize jars and utensils for home canning. The process consumes a lot of energy.

In addition to the above, other types of programs may be indicated in the specs of dishwashers, in particular:

— Normal. Standard programme for washing lightly soiled dishes with a full load at temperatures around 65 °C. Available in almost all modern dishwashers, but sometimes manufacturers specify its availability separately.

— Plastic utensils. The programme is designed for washing reusable plastic dishes at lower temperatures and intensity than the standard programme to avoid scratches and damage caused by high heat. Not all plastic dishes are compatible with dishwashers, so compatibility should be checked separately. Washing disposable dishes is not recommended.

— Mixed. This category includes all programs that combine several washing modes at once — for example, the normal mode in the compartment for cups and glasses, and the intensive one in the lower part, where you can put a pot or frying pan. Options for such combinations may be different, depending on the model.

— Self-cleaning. Special programme to remove deposits and disinfect the dishwasher. Self-cleaning mode heats water with detergents to remove moderate pollution, and can be run multiple times for tough deposits.

Sound signal, indicating the end of the dishwasher operating. Many dishwashers work quietly and without a special signal, it can be difficult to determine whether the programme has ended.

Possibility of connection of the dishwasher to a source of hot water. With this connection, the water enters the device already heated (unlike the usual procedure, when the dishwasher itself heats the water to the desired temperature) — thus it saves time and energy. However, note that "hot connection" is demanding on the quality of water: in most cases, it must have a temperature of 60-65 °C and be supplied without pressure drops.
Note that hot water connection is an option, not the only way; dishwashers with the possibility of such a connection can usually work according to the standard scheme, from a source of cold water.

The presence of an door closer in the design of the dishwasher.

An auto-closer is a device that helps close or open a door smoothly to the fully closed or open position, preventing the door from remaining in an intermediate position. It has two functions: ensuring the door is fully closed to prevent splashes and damage, and providing soft closing/opening to prevent shock and damage.

The preserence of display in dishwasher. Typically, it is the simplest LCD screen capable of displaying multiple symbols. However, even such a screen provides additional convenience and makes the operation more visual: various notifications can be displayed on it, especially about the current operating mode, the remaining time, set timers, the remaining detergent, etc. More advanced dishwashers can be equipped with a TFT display with advanced features. But this does not affect the washing process.

A protective system designed for those cases when there are small children in the house. To prevent a curious child from injuring himself and ruining the dishwasher, various locks can be provided in the design — usually for the door, sometimes also for the control panel. The child lock function turns off in a way that is easily accessible to an adult but not accessible to a child.