The primary difference between the S500e and its higher-end counterpart, S550e, is that it lacks an automatic open/close lid and LED nightlight. Nevertheless, it provides some of the best features money can buy and offers a truly transformative toileting experience. The S500e features include an instant water heater, 5 temperature settings for the wash water and warm air dryer, and an auto-flush option. The bidet seat also has a few fun technology pieces, such as cleansing the nozzles with sterile Ewater+, bowl premisting to stop waste from sticking, and an energy saver that can be set by timer or plain on/off.

The WASHLET+ toilets that come paired with this seat include the Aimes, AP, Aquia, Drake, EP, Legato, Nexus, and Ultra Max.