8 Best Bidet Toilet Seats in Japan: Expert Review in 2023

A toilet washlet contains a bidet shower with various functions. It is an advanced system for hygiene and comfort which uses water to clean the user’s bidet regions after using the toilet. A toilet bidet seat can keep you fresh and rejuvenated. The washlet utilizes a warm-water nozzle that you control in either the pulsating or oscillating mode. After cleaning, a simple and soothing hands-free drying system is employed, which is adjustable in temperature. Washlet also features a heated seat, a water-saving dual flushing system, automatic flushing, and remote control. Nowadays, it is very popular in the household. Therefore, over 60 million units have already been sold from the year 1980-2023.

Now let’s discuss the top eight products that can fulfill your demand for sure.

If you are in a hurry, you can use the comparison table below to buy the most suitable item. The comparison table summarizes the different items described in this article. You can buy the best item based on your budget, preference, and recommendations. Based on our research, we concluded that-
– The Overall Best – TOTO (Model TCF8CM57 (SC1)) washlet
– The Editor’s Choice – Panasonic (Model CH932SPF) washlet
– The Lowest Budget Product – Toshiba Bidet Clean Wash (Model SCS-T160)

8 Best Japanese Bidet Toilet Seats or Washlets

1. Panasonic (Model CH932SPF) washlet
2. TOTO (Model TCF8CM57 (SC1)) washlet
3. TOTO (Model TCF8GM23 (NW1)) washlet
4. Panasonic Beauty Toilet (Model CH941SPF) washlet
5. Toshiba Bidet Clean Wash (Model SCS-T160) toilet seat
6. LIXIL INAX (Model CW-RG1/BN8) washlet
7. INAX (Model CW-RT2/BN8) washlet
8. RG Series Bidet Toilet Seat (Model RG Series)

Comparison of the Best Toilet Bidet Seats / Washlets in Japan

Product Image
Editor's choice
パナソニック 温水洗浄便座ビューティ・トワレ(貯湯式タイプ)...
Overall Best
TOTO ウォシュレット KMシリーズ 瞬間式 温水洗浄便座 パステルアイボリー...
Premium Quality
TOTO 瞬間式 温水洗浄便座 『ウォシュレット KMシリーズ』 TCF8GM23 (NW1...
Budget Friendly
パナソニック 温水洗浄便座 ビューティ・トワレ CH941SPF...
Product Name
パナソニック 温水洗浄便座ビューティ・トワレ(貯湯式タイプ)...
TOTO ウォシュレット KMシリーズ 瞬間式 温水洗浄便座 パステルアイボリー...
TOTO 瞬間式 温水洗浄便座 『ウォシュレット KMシリーズ』 TCF8GM23 (NW1...
パナソニック 温水洗浄便座 ビューティ・トワレ CH941SPF...
Brand
Panasonic
Toto
Toto
Panasonic
Model No
CH932SPF
TCF8CM57 (SC1)
TCF8GM23 (NW1)
CH941SPF
Product Dimension
22.83 x 20.47 x 7.87 inches
15.2 x 21.0 x 5.1 inches
26.77 x 18.9 x 7.09 inches
22.76 x 20.71 x 7.95 inches
Weight
4.8kg
4.6kg
6.3kg
4.8kg
Color
Pastel ivory
White
White
Pastel ivory
Power Source
AC100V, 50/60 Hz
AC100V, 50/60 Hz
AC100V, 50/60 Hz
AC100V, 50/60Hz
Wattage
-
1268W
1268 W
662W
Editor's choice
Product Image
パナソニック 温水洗浄便座ビューティ・トワレ(貯湯式タイプ)...
Product Name
パナソニック 温水洗浄便座ビューティ・トワレ(貯湯式タイプ)...
Brand
Panasonic
Model No
CH932SPF
Product Dimension
22.83 x 20.47 x 7.87 inches
Weight
4.8kg
Color
Pastel ivory
Power Source
AC100V, 50/60 Hz
Wattage
-
Overall Best
Product Image
TOTO ウォシュレット KMシリーズ 瞬間式 温水洗浄便座 パステルアイボリー...
Product Name
TOTO ウォシュレット KMシリーズ 瞬間式 温水洗浄便座 パステルアイボリー...
Brand
Toto
Model No
TCF8CM57 (SC1)
Product Dimension
15.2 x 21.0 x 5.1 inches
Weight
4.6kg
Color
White
Power Source
AC100V, 50/60 Hz
Wattage
1268W
Premium Quality
Product Image
TOTO 瞬間式 温水洗浄便座 『ウォシュレット KMシリーズ』 TCF8GM23 (NW1...
Product Name
TOTO 瞬間式 温水洗浄便座 『ウォシュレット KMシリーズ』 TCF8GM23 (NW1...
Brand
Toto
Model No
TCF8GM23 (NW1)
Product Dimension
26.77 x 18.9 x 7.09 inches
Weight
6.3kg
Color
White
Power Source
AC100V, 50/60 Hz
Wattage
1268 W
Budget Friendly
Product Image
パナソニック 温水洗浄便座 ビューティ・トワレ CH941SPF...
Product Name
パナソニック 温水洗浄便座 ビューティ・トワレ CH941SPF...
Brand
Panasonic
Model No
CH941SPF
Product Dimension
22.76 x 20.71 x 7.95 inches
Weight
4.8kg
Color
Pastel ivory
Power Source
AC100V, 50/60Hz
Wattage
662W
Product Image
Lowest Budget
東芝 温水洗浄便座 クリーンウォッシュ SCS-T160 パステルアイボリー
Popular Product
LIXIL(リクシル) INAX 温水洗浄便座 【日本製】 2年保証 貯湯式...
LIXIL INAX...
Low Power Consumption
LIXIL ( リクシル ) INAX シャワートイレ CW-RG10 / BN8 オフホワイト RGシリーズ...
Product Name
東芝 温水洗浄便座 クリーンウォッシュ SCS-T160 パステルアイボリー
LIXIL(リクシル) INAX 温水洗浄便座 【日本製】 2年保証 貯湯式...
LIXIL INAX...
LIXIL ( リクシル ) INAX シャワートイレ CW-RG10 / BN8 オフホワイト RGシリーズ...
Brand
TOSHIBA
LIXIL
LIXIL
LIXIL
Model No
SCS-T160
CW-RG1/BN8
CW-RT2/BN8
RG Series
Product Dimension
22.83 x 20.47 x 8.35 inches
24.8 x 22.28 x 7.8 inches
24.41 x 22.44 x 7.95 inches
25.2 x 22.44 x 7.8 inches
Weight
4.1kg
3.4kg
3.6kg
3.4kg
Color
Pastel ivory
White
White
Grays
Power Source
AC100V, 50/60Hz
AC100V, 50/60Hz
AC100V, 50/60 Hz
AC100V, 50/60 Hz
Wattage
662W
300W
350W
300W
Lowest Budget
Product Image
東芝 温水洗浄便座 クリーンウォッシュ SCS-T160 パステルアイボリー
Product Name
東芝 温水洗浄便座 クリーンウォッシュ SCS-T160 パステルアイボリー
Brand
TOSHIBA
Model No
SCS-T160
Product Dimension
22.83 x 20.47 x 8.35 inches
Weight
4.1kg
Color
Pastel ivory
Power Source
AC100V, 50/60Hz
Wattage
662W
Popular Product
Product Image
LIXIL(リクシル) INAX 温水洗浄便座 【日本製】 2年保証 貯湯式...
Product Name
LIXIL(リクシル) INAX 温水洗浄便座 【日本製】 2年保証 貯湯式...
Brand
LIXIL
Model No
CW-RG1/BN8
Product Dimension
24.8 x 22.28 x 7.8 inches
Weight
3.4kg
Color
White
Power Source
AC100V, 50/60Hz
Wattage
300W
Product Image
LIXIL INAX...
Product Name
LIXIL INAX...
Brand
LIXIL
Model No
CW-RT2/BN8
Product Dimension
24.41 x 22.44 x 7.95 inches
Weight
3.6kg
Color
White
Power Source
AC100V, 50/60 Hz
Wattage
350W
Low Power Consumption
Product Image
LIXIL ( リクシル ) INAX シャワートイレ CW-RG10 / BN8 オフホワイト RGシリーズ...
Product Name
LIXIL ( リクシル ) INAX シャワートイレ CW-RG10 / BN8 オフホワイト RGシリーズ...
Brand
LIXIL
Model No
RG Series
Product Dimension
25.2 x 22.44 x 7.8 inches
Weight
3.4kg
Color
Grays
Power Source
AC100V, 50/60 Hz
Wattage
300W

Here are the details of each budget laptop compared in the above table-

1. Panasonic (Model CH932SPF) washlet

Washlet
Photo: Panasonic (Model CH932SPF) washlet

Brand: Panasonic
Model No: CH932SPF
Weight: 4.8 Kg

Short description of the washlet:

Panasonic-CH932SPF has a hot water storage type water supply system that is great for use. The stainless-steel nozzles let you handle its deodorizer nozzle cleaning. The installation process is not so difficult, so you can easily install it in your toilet. It has a feature called “power pulse cleaning.” Though there is no deodorizing button, it still has an automatic deodorizing function, so the deodorizing function will be activated when the buttocks are separated from the toilet seat. The deodorization function is solid. Without deodorization, the smell remains quite a bit, but this doesn’t bother at all.

2. TOTO washlet (Model TCF8CM57 (SC1))

Washlet seat
Photo: TOTO washlet (Model TCF8CM57 (SC1)).

Brand: TOTO
Model No: TCF8CM57 (SC1)
Weight: 4.6 Kg

Short description of the washlet:

The TOTO-TCF8CM57 (SC1) is an instant device that boils water when washing; the hot water does not get cold even after continuous use. It is also effective in saving electricity because it makes hot water only when it is used. After use, when you automatically startup from the normal “deodorization,” it switches to “power deodorization,” which has about twice the suction amount and deodorizes odors.

This TOTO washlet does not cause any discomfort for the next user. It has a technology that makes it difficult to get dirty and easy to remove the dirt. It is easy to clean by eliminating the seams on the toilet seat. The color of the toilet bidet seat is also very attractive. This is lightweight but still strong enough to carry the heavy load of an adult. You can easily adjust the water pressure of the bidet shower. Therefore, it is one of the best washlets in the market.

Sale
TOTO ウォシュレット KMシリーズ 瞬間式 温水洗浄便座 パステルアイボリー...
953 Reviews
TOTO ウォシュレット KMシリーズ 瞬間式 温水洗浄便座 パステルアイボリー...
  • サイズ:幅38.4×奥行53.1×高さ13.1cm
  • 電源:AC100V 50/60Hz 電源コード1.0m(漏電防止プラグ、アース線付)
  • 定格消費電力:1268W

3. TOTO washlet (Model TCF8GM23 (NW1))

TOTO-Toilet-Seat
Photo: TOTO (Model TCF8GM23-(NW1)) toilet bidet seat

Brand: TOTO
Model No: TCF8GM23 (NW1)
Weight: 6.3 Kg

Short description of the TOTO washlet :

The special feature of TTOTO-TCF8GM23 (NW1) is that it can automatically spray mist (water) onto the toilet bowl to create a cushion of water, and for that reason, it doesn’t get dirty easily. By eliminating its sleeves on both sides, it is easier to clean the floor surface. The toilet space is also wide; The toilet seat and nozzle are made of pure resin with high stain resistance. Even if it gets dirty, it is easy to maintain with just a single wipe. The nozzle will be thoroughly cleaned with water before and after using the washlet.

The nozzle will last a long time in conjunction with clean disinfecting water. Once it is set, the toilet seat-heater will automatically turn off and save electricity. The device can remember the frequency of use of the toilet, and the toilet seat heater automatically cuts down to save electricity.

4. Panasonic Beauty Toilet washlet (Model CH941SPF)

Toilet washlet seat
Photo: Panasonic-Beauty-Toilet (Model CH941SPF) washlet seat

Brand: Panasonic
Model No: CH941SPF
Weight: 4.8 Kg

Short description of the Panasonic washlet:

The Panasonic beauty toilet washlet comes with a 1-year warranty after purchase. The cost performance is good for this product. By following the instruction manual, you can install it very easily. It is comfortable to use without any water leakage issues. The design is very attractive. There are some special features of the Panasonic-CH941SPF model toilet bidet seat. There is no need for the battery to use it.

Although the product’s price is low, you can be satisfied with the performance. So, this can be a budget-friendly washlet for you.

5. Toshiba Bidet Clean Wash toilet seat (Model SCS-T160)

toilet bidet seat
Photo: Toshiba Bidet Clean Wash (Model SCS-T160) toilet seat

Brand: TOSHIBA
Model No: SCS-T160
Weight: 4.1 Kg

Short description of the Toshiba washlet:

Among all the bidet toilet seats available online, the Toshiba Bidet Clean Wash is the most convenient one to use. It has a storage-type water supply system which is convenient for daily use. It automatically starts the deodorizing operation when you sit down and will automatically shut off after about 1 minute. It keeps the nozzle clean which is known as auto nozzle cleaning.

The air bubbles are mixed into the water flow to wash your bidet skin gently. Most buyers are pleased with the exciting features provided by the Toshiba bidet clean wash (model SCS-T160) toilet seat.

東芝 温水洗浄便座 クリーンウォッシュ SCS-T160 パステルアイボリー
9,748 Reviews
東芝 温水洗浄便座 クリーンウォッシュ SCS-T160 パステルアイボリー
  • サイズ:幅489×奥行543×高さ158mm ・ 本体重量:4.1kg
  • 電源:AC100V 50/60Hz共用、電源コード(m):約1.0
  • 定格消費電力:662W(本体:600W 便座50W) / 年間消費電力量:152kWh/年(215kWh/年)

6. LIXIL INAX washlet (Model CW-RG1/BN8)

washlet seat
Photo: LIXIL INAX (Model CW-RG1/BN8) washlet seat

Brand: LIXIL
Model No: CW-RG1/BN8
Weight: 3.4 Kg

Short description of the LIXIL washlet:

LIXIL INAX CW-RG1 / BN8isan affordable entry model that allows you to experience a high level of performance. It is a new standard of hot water storage type that has achieved the energy-saving standard of 2012 while maintaining the cleaning feeling. The basic performance is high level, the design is improved, the clean toilet seat is installed, and the cleanability is also improved.

The braille display is used for the operation unit, so it is easy to use for anyone. It maintains a comfortable temperature. It’s always warm, even in the cold winter.

Sale
LIXIL(リクシル) INAX 温水洗浄便座 【日本製】 2年保証 貯湯式...
2,754 Reviews
LIXIL(リクシル) INAX 温水洗浄便座 【日本製】 2年保証 貯湯式...
  • サイズ:幅477×奥行554×高さ176mm ●本体重量:約3.4kg ●日本製
  • 電源:AC100V 50/60Hz●消費電力:300W
  • 電源コード(有効長さ):1.0m(アースコード付)

7. LIXIL INAX washlet (Model CW-RT2/BN8)

Toilet washlet seat
Photo: LIXIL INAX (Model CW-RT2/BN8) washlet seat

Brand: LIXIL
Model No: CW-RT2/BN8
Weight: 3.6 Kg

Short description of the washlet:

INAX CW-RT2/BN8 has a beautiful toilet seat that is very easy to clean frequently. The new material quickly wipes away dirt from the back of the toilet seat. It is easy to clean the original INAX toilet seat. The best thing is that it is a stain-resistant product for the first time. INAX has been recognized worldwide for its anti-microbial specification. In addition, the nozzle tip is removable. INAX features that stand up to the cleanliness and cleaning power.

The device uses a separate nozzle for the butt and bidet. It is comfortable to wash and has a clean design that is gentle on women. It can automatically switch between power deodorization and full power deodorization according to usage conditions. The deodorizing cartridge’s life is approximately seven years.

LIXIL INAX...
1,625 Reviews
LIXIL INAX...
  • サイズ:高さ149×幅421×奥行554mm
  • 本体重量:約3.6kg
  • 電源:AC100V 50/60Hz

8. LIXIL RG Series Bidet Toilet Seat (Model RG Series)

Bidet Toilet Seat
Photo: LIXIL INAX (RG-Series) Bidet Toilet Seat

Brand: LIXIL
Model No: RG Series
Weight: 3.4 Kg

Short description of the LIXIL washlet:

RG Series bidet toilet seat comes with a convenient energy-saving function for long periods when not in use which is a great feature. The butt nozzle and bidet nozzle have different cleaning designs. The SIAA mark is displayed on the products whose quality is controlled. According to the Antibacterial Product Technology Council guidelines, the information is disclosed based on the results evaluated by the ISO 22196 method. The nozzle tip can be replaced to keep the nozzle clean at all times. When you press the switch after sitting, the nozzle is forcibly washed with plenty of hot water.

Furthermore, the back of the toilet seat is made of antifouling material, so even if it gets dirty, it can be wiped quickly for easy cleaning.

Sale
LIXIL ( リクシル ) INAX シャワートイレ CW-RG10 / BN8 オフホワイト RGシリーズ...
428 Reviews
LIXIL ( リクシル ) INAX シャワートイレ CW-RG10 / BN8 オフホワイト RGシリーズ...
  • 【付属の部材だけでかんたん取付け】INAXのシャワートイレは、コンセントがあれば特別な工事が必要ありません。付属の部材で簡単に取付け可能です。また国内メーカーのほとんどの便器に対応しており、メーカーを問わず付け替えができます。※一部国内メーカーの便器でも取付けできない商品があります。
  • 【忙しい毎日にかんたんお掃除】汚れが入りやすいつなぎ目がなくサッとひと拭きでOK。便フタ・本体が着脱可能で、今まで手の届かなかった奥の汚れもお掃除できます。また鉢内スプレーで便器の表面を濡らし、汚れを付きにくくするのでお掃除もラクラク。
  • 【強力脱臭で次の人にやさしい思いやり】パワー脱臭機能を搭載し、着座すると脱臭が自動でスタート。立ち上がったあとも1分間脱臭が続き、使用後のにおいを気にせずトイレをあとに。

Frequently asked questions (FAQ) about toilet bidet seats

How much power do bidet seats draw?

Tank-type bidet seats generally draw a maximum of 600W at their peak, while tankless-type bidet seats draw up to 1400W. However, a bidet seat will only draw a high wattage during an active wash cycle when all temperatures are set to maximum levels. It may be 4-5 minutes per day. Most of the time, the bidet seat will be sitting idle with a very low power draw (especially if eco modes are active). They do not require dedicated circuits so long as there aren’t any other heavy appliances active on the same circuit. 

Features to consider while buying toilet bidet seat or washlet:

There are several features you should consider while buying a washlet. Such as-

Standard features:
Most toilet bidet seats have standard features such as a heated seat, hot water, warm air dryer, front feminine wash, and rear bidet washing modes. You should check the availability of those features. The other features, such as the water temperature, spray pressure, nozzle positioning, and seat temperature, should be adjustable.

Unique features:
Bidet seats may have some unique features that set them apart, like an automatic opening/closing lid, LED night light, etc. When comparing the various bidet models, you’ll need to decide which of these features is most important to you.

Size compatibility:
Before buying a bidet seat, you should first make sure you have a compatible toilet. So, you must find out what kind of toilet you have.

Spray pressure strength:
The strength of the spray is a very important feature. Some users prefer a gentle spritz, and others want a blast. Therefore, most models have an opportunity to adjust the spray pressure to do the job as per your expectation. You may buy a bidet seat specializing in higher spray pressure for those looking for extra strength of spray pressure.

Warranty coverage:
Warranty coverage is also an important point for the bidet comparison factor. A longer time warranty is always a great thing to have in your back pocket. Most models offer one to two to three years of warranty coverage, and some also have optional extended warranties. Make sure to pay attention to what’s covered as part of the warranty.

Brand reputation and reliability:
Warranty coverage is also an important point for the bidet comparison factor. A longer warranty is always great. Most of us have a horror story about an expensive item bought and having some issues. This can happen to anyone. However, what makes the experience truly horrible is when the company that produced it doesn’t stand behind it. Buying a bidet seat is no different. So, we always recommend buying products from a reputed brand. At least you can get great support if there any issue arises after your purchase.

Mistakes to avoid while buying a toilet washlet seat:

Not having an electrical outlet nearby:
The vast majority of bathrooms do not have an outlet near the toilet. Although it may seem funny, a few individuals purchase an electronic bidet seat and have no idea they need an electrical outlet. Electric bidets do not run off batteries, and all models need to be plugged into an outlet.

Purchasing the wrong size bidet seat:
It is very troublesome to purchase the wrong size bidet seat. It is very important to understand whether the new bidet size is compatible with your toilet or not. 

Buying less when expecting more:
A bidet seat is a home appliance used daily, multiple times a day, often by multiple members of a single household. You should buy the cheapest option possible just because “it’s a toilet seat.” Think of buying a bidet seat as a long-term investment regarding your health and hygiene. For a long time use and a hygienic lifestyle, you should buy something dependable and high-quality product.

Not knowing the difference between a tank, tankless, and hybrid heating bidet:
When buying a bidet toilet seat, a key feature is what kind of water heating system it uses: tank, tankless, or hybrid. The difference in performance can influence the overall experience of your bidet seat.

Unrealistic expectations:
Bidet toilet seats are incredible hygiene devices that can change your bathroom habits. However, the toilet washlet or bidet seats are not miracle products. Using a bidet will be a positive life-changing experience, but a huge mistake some users make of having unrealistic expectations for what they can do. Doing a little research is the best way to avoid making mistakes while buying a bidet toilet seat.

Things to notice:
Before buying a washlet, be sure about each & every detail and how it should be implemented & how to use it. Sometimes lack of knowledge may lead to unexpected failure of product functionality. The device may get damaged within a few days & you can get yourself hurt. It is necessary to be realistic about your expectation. You should know your budget and what you’ll be getting at the desired price range, understand the sizing of a bidet seat, and know what features you want.

Conclusion
The information provided in this article has been published after analysis of the available data in different resources. As a washlet is an expensive product, you should know enough about the device you will buy. So, before buying a washlet, try to know the necessary details. Contact the seller or local vendor to solve the issue if you ever face issues using the device. To read more reviews on home appliances such as the best vacuum cleaner, robotic vacuum cleaner, coffee maker, floor mat, microwave oven, and washing machine, you can check our home appliance category articles on the Sakuron Japan website. Feel free to share your feedback with us by using the contact us page.

Our editorial team reviewed this article and approved it for publication according to our editorial policy.

Amazon bestseller toilet bidet seat list:

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