Battle of the Thrones: Kohler Eir vs Toto Neorest

Choosing between luxury toilets can be daunting, with options like the Kohler Eir and Toto Neorest offering peak comfort and hygiene.

Do you feel overwhelmed by the high-tech features and sleek designs?

You’re not alone.

We understand the desire for a bathroom that doesn’t compromise on sophistication or sustainability.

Discover how these thrones compare, and find your perfect match in the “”Battle of the Thrones: Kohler Eir vs Toto Neorest””.

Kohler Eir Vs Toto Neorest Key Features Compared

Bidet Features

When it comes to bidet features, both the Kohler Eir and Toto Neorest offer a range of functionalities that elevate the bathroom experience.

The Kohler Eir is equipped with a stainless steel wand that offers adjustable spray shape, position, water pressure, and temperature.

It also includes pulsate and oscillate functions for a personalized cleansing experience.

The wand is self-cleaning, using UV light and electrolyzed water systems to sanitize the surfaces.

This feature ensures a hygienic experience every time you use the toilet.

On the other hand, the Toto Neorest also offers front and rear warm water washing with adjustable temperature and intermittent pressure controls.

It uses EWATER+ on the wand and bowl, a feature that mists the bowl with electrolyzed water, reducing the need for harsh cleaning chemicals.

Toilet Specs

The Kohler Eir is a one-piece elongated smart toilet with a dual-flush system.

It offers a choice of 0.8 or 1.0 gallons per flush (gpf), which is equivalent to 3.0 or 3.8 liters per flush (lpf). The toilet also features a Comfort Height design, which offers chair-height seating that makes sitting down and standing up easier for most adults.

Similarly, the Toto Neorest is a sleek, low-profile one-piece toilet with a dual-flush system, offering 1.0 and 0.8 gpf.

It is ADA compliant and has a universal height, making it accessible for a wide range of users.

Spray Modes

The Kohler Eir offers front and rear wash modes that provide warm water for cleansing.

These modes can be adjusted according to the user’s preference, ensuring a comfortable and personalized experience.

The Toto Neorest also offers front and rear warm water washing.

The temperature and pressure of the water can be controlled, allowing users to customize their cleansing experience.

Nozzle Material

The Kohler Eir intelligent toilet features a stainless steel 316 single wand with 24 nozzles.

Stainless steel is known for its superior build quality and hygiene, as it is absent of pores and difficult to crack or scratch.

This makes it an excellent material for bidet nozzles, as it is easy to clean and does not harbor dirt and bacteria.

On the other hand, the TOTO Neorest series uses plastic nozzles.

Although plastic is not as inherently tough as stainless steel, the plastics used in bidet nozzles are sealed to reduce the potential for scratches, pores, and cracks.

In terms of functionality, there is no discernable difference in spray quality between plastic and stainless steel nozzles.

User Presets

The TOTO Neorest series offers the ability to save two sets of user presets into the remote control.

These presets control water temperature, water pressure, and nozzle position.

This feature is handy for multi-person families and households, as each user can save their preferred settings for a personalized experience.

The Kohler Eir intelligent toilet also offers adjustable features, but there is no mention of user presets in the available sources.

However, it does come with a touchscreen remote for controlling various settings.

Water Efficiency

The Kohler Eir is a dual-flush toilet, offering a 0.8 GPF (gallons per flush) option for liquid waste and a 1.0 GPF option for solid waste.

This dual-flush technology allows users to choose between a full or partial flush, helping to conserve water.

The TOTO Neorest series also features dual-flush technology, but the specific GPF values for each flush option are not mentioned in the available sources.

However, it is noted that the Neorest toilets are WaterSense certified, meaning they use 20% less water than the current standard while maintaining superior performance.

In conclusion, both the Kohler Eir and TOTO Neorest offer nozzle materials that provide effective cleansing, with the Eir featuring a stainless steel nozzle and the Neorest using a plastic one.

While the TOTO Neorest has user presets for personalized settings, the Kohler Eir does not mention this feature.

Both toilets are water-efficient, with the Eir providing specific GPF values and the Neorest being WaterSense certified.

Design and Exterior

The Kohler Eir and Toto Neorest are both designed with a modern aesthetic that can complement any bathroom decor.

The Eir is described as having flowing lines and personalized finish detail, making it a statement piece in any bathroom.

Its sleek, tankless, and skirted design, combined with a back-to-wall installation, allows for concealed connections, enhancing its minimalist appeal.

On the other hand, the Toto Neorest pursues ultimate simplicity with its linear design.

It features an edgy shape that leaves a sharp impression, and its design is aimed at accentuating any modern space.

The Neorest WX, in particular, has a soft geometric form that blends seamlessly into the space, and its body and lid are unified with a seamless flat design, creating a simple beauty.

Cleaning Wand

Both the Kohler Eir and Toto Neorest feature a cleaning wand, but they differ in their cleaning mechanisms.

The Eir’s cleaning wand is cleaned with powerful electrolyzed water.

This self-cleaning function uses UV light and electrolyzed water systems to automatically clean the wand surfaces.

The wand can be extended for cleaning by pressing the “”wand”” icon on the panel.

The Toto Neorest, on the other hand, has a manual cleaning option for the wand.

The wand cleaning cycle can be initiated, and then the wand can be cleaned with a soft toothbrush or something similar.

The cleaning process for the Neorest wand is detailed in the instruction manual.

Spray Capability

The spray capability of these toilets is another feature that sets them apart.

The Kohler Eir’s stainless steel wand offers adjustable spray shape, position, water pressure, temperature, pulsate, and oscillate functions.

It provides front and rear wash modes with warm water for cleansing.

The Toto Neorest, on the other hand, uses a Tornado Flush system that cleans more effectively and quietly using less water.

Powerful streams of water merge and swirl 360 degrees, washing every spot inside the rimless toilet bowl.

The Tornado Flush’s dynamic waterjet discharges from near the front of the toilet bowl, travels in a narrow channel along a hairpin curve, and with sustained water pressure, thoroughly cleanses the areas where waste accumulates most easily, and then washes the entire bowl clean.

Nozzle Sanitation

When it comes to the Kohler Eir, the nozzle sanitation feature is a standout.

The Eir’s self-cleaning wand is designed to automatically rinse with sterilized water both before and after use, ensuring a high level of hygiene.

This feature is not just about cleanliness, but also about peace of mind.

Imagine the comfort of knowing that every time you use the toilet, the nozzle is as clean as it was the first time.

It’s like having a brand new toothbrush every morning.

On the other hand, the Toto Neorest also offers an impressive nozzle sanitation feature.

The Neorest’s wand is coated with a silicone-based material, which has antibacterial and antifungal properties.

This means that the wand is not just cleaned, but actively fights against bacteria and fungi.

It’s like having a personal bodyguard, constantly on duty to protect you from unwanted germs.

Bowl Premist

The Bowl Premist feature is another area where both the Kohler Eir and the Toto Neorest shine.

The Eir’s bowl is sprayed with water before each use, which helps to prevent waste from sticking to the sides of the bowl.

This feature is akin to a pre-wash cycle on a dishwasher, preparing the bowl for a cleaner flush.

The Neorest, however, takes this feature a step further.

Not only does it premist the bowl, but it does so with electrolyzed water, a proven disinfectant.

This is like having a mini power-washer, pre-cleaning your toilet bowl before each use.

Automatic Flush

Finally, let’s talk about the Automatic Flush feature.

The Kohler Eir boasts a hands-free automatic flush, which is activated by sensors when you move away from the toilet.

This feature is like having a personal assistant who takes care of the flushing for you, so you don’t have to think about it.

The Toto Neorest also offers an automatic flush feature, but with an added twist.

The Neorest’s flush is not only automatic but also adjustable, allowing you to choose between a full or partial flush depending on your needs.

This feature is like having a customizable personal assistant, who not only takes care of the flushing for you but also adapts to your specific needs.

Auto Lid Open/Close

The Kohler Eir and Toto Neorest both offer an automatic lid open/close feature.

This feature is designed to provide a hands-free experience, enhancing the user’s convenience and hygiene.

The Kohler Eir’s auto lid open/close feature is motion-activated.

This means that the toilet lid will automatically open when it detects movement and close when the user walks away.

This feature can be particularly useful in maintaining hygiene, as it eliminates the need to touch the toilet seat, reducing the spread of germs.

On the other hand, the Toto Neorest also offers an auto lid open/close feature.

This feature can be controlled using a remote, providing a seamless and convenient user experience.

The remote control operation can be particularly beneficial for those with mobility issues, as it allows for easy operation without the need to bend or reach.

UV Light System

The UV light system is a feature that is designed to sanitize the toilet, enhancing cleanliness and hygiene.

The Kohler Eir is equipped with a UV light cleansing technology that reduces bacteria by 99.9%. This feature can be particularly beneficial in maintaining a clean and hygienic toilet environment, reducing the risk of bacterial infections.

On the other hand, the Toto Neorest does not appear to have a UV light system based on the provided search results.

However, it does have other sanitizing features such as “”ewater+”” sanitizing and auto wand cleaning.

These features can also contribute to maintaining a clean and hygienic toilet environment.

Flush Volume

Both the Kohler Eir and Toto Neorest offer a dual flush system, providing users with the option to choose between a full or partial flush based on their needs.

The Kohler Eir offers a dual flush system with a flush volume of 0.8 GPF (gallons per flush). This feature can be particularly beneficial in conserving water, as it allows users to choose a lower flush volume for liquid waste.

The Toto Neorest also offers a dual flush system.

However, the specific flush volume is not mentioned in the provided search results.

The dual flush system can also contribute to water conservation, as it provides users with the option to choose a lower flush volume when needed.

PROs and CONs

Kohler Eir


  1. Well-engineered and thoughtfully designed.
  2. Advanced features like automatic open/close lid, touchless flush, heated seat, built-in bidet.
  3. Dual-flush system for water efficiency.
  4. Compact, streamlined design.
  5. Comfort Height feature for easy sitting and standing.
  6. Integrated personal cleansing.
  7. Elongated bowl for added room and comfort.
  8. LED lighting serves as a nightlight.
  9. Emergency flush supports up to 100 flushes during power outage.
  10. WaterSense certified – uses 20% less water than standard.


  1. High cost due to advanced features and design.
  2. Installation can be complex and may require professional help.
  3. Requires electricity to function.
  4. Materials may not be as durable as other smart toilets.
  5. Maintenance and repair could be costly due to advanced technology.

Toto Neorest


  1. High-end, luxurious design
  2. Self-cleaning feature
  3. Heated seat with temperature control
  4. Hands-free automatic flushing
  5. Warm water wash and air dry
  6. Deodorizer fan for odor control
  7. Remote control feature for convenience
  8. Universal height for ease of use
  9. Improved toilet hygiene
  10. Durable construction


  1. High cost
  2. Insufficient drying feature
  3. Requires unplugging for cleaning
  4. May spray excessive water
  5. Some models are being discontinued

Comparative Analysis of Key Features

Comparison ParameterKohler EirToto Neorest
Toilet TypeOne-piece, Wall-mountOne-piece
DimensionsL 560 mm, H 640 mm, W 805 mm27-3/16″”L x 15-3/16″”W x 21-5/8″”H
Flush TechnologyDual-flush technology, Pump-assisted flushingTORNADO FLUSH® System
Water Consumption0.8 or 1.0 gpf (3.0 or 3.8 lpf)1.0 GPF & 0.8 GPF
ADA CompliantYesYes
InstallationStandard 12″” (305 mm) rough-in12″” Rough-in
SeatHeated seatHeated seat with temperature control
Remote ControlIncludedIncluded
Additional FeaturesNight-light, hands-free opening/closing, automatic flushEWATER+® on wand and bowl, Air Deodorizer, Night light, Warm Air Dryer function
MaterialVitreous ChinaNot specified
Price$5,325.00Varies by model, ranging from $7,337 to $17,064.80

Final Say So!

The Kohler Eir and TOTO Neorest are both high-end, feature-rich smart toilets that cater to different preferences.

The Kohler Eir is known for its sleek, curvaceous design and stainless-steel nozzle, while the TOTO Neorest offers a more angular design and a plastic nozzle.

The Eir has a PREMIST equivalent and wand cleaning technology similar to TOTO’s EWATER+. The Neorest comes in several models, such as the 700H, 750H, EW, AC, AH, NX1, and NX2, while Kohler offers the Eir and Veil.

The Kohler Eir is suitable for those who prefer a more modern, curvaceous design and a stainless-steel nozzle for easier cleaning.

It is also a more budget-friendly option compared to some TOTO Neorest models.

However, some users have reported difficulty in setting up auto flush and sensor levels, and a lack of instructional videos or guides from Kohler.

The TOTO Neorest is ideal for those who appreciate a wider range of models and features, such as the bowl premist feature and automatic flush.

It is also more water-efficient, with a dual flush capacity of 1.0 GPF and 0.8 GPF, making it an Ultra High-Efficiency Toilet (UHET). However, the Neorest models tend to be more expensive than the Kohler Eir.

In conclusion, both the Kohler Eir and TOTO Neorest offer unique features and designs that cater to different preferences and budgets.

The Kohler Eir is a more budget-friendly option with a sleek design and stainless-steel nozzle, while the TOTO Neorest offers a wider range of models and features, with a focus on water efficiency and advanced technology.

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Steven Bosque

Dale Cogburn

Hi, I’m Dale Cogburn! I’m passionate about helping people get the most out of their bidets. I’m an expert on all things related to bidets, from installation and maintenance to product reviews. I’ve been using and researching bidets for over 10 years.

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