TOTO S5 vs KS6: Best WASHLET for Your Bathroom?
If you're shopping for a premium bidet seat, the TOTO S5 vs KS6 matchup is worth a closer look. These are two of the newest additions to TOTO's WASHLET collection, each designed to deliver top-tier comfort, hygiene, and performance.
While they share many of the same advanced features, subtle differences in design, fit, and availability may make one a better choice for your bathroom.
In this comparison, we’ll break down what the TOTO S5 Washlet and TOTO KS6 Washlet have in common, how they differ, and which one might be right for you.
Washlet KS6 vs Washlet S5: What is the same?
With the S5 and KS6 priced similarly, understanding what they have in common is the best place to start. These models offer a nearly identical set of premium features designed to elevate your bathroom experience across comfort, hygiene, and ease of use.
Here's what you can expect from both:
- Instantaneous warm water with adjustable temperature
- Front and rear cleansing with oscillating spray
- Heated seat with 5 temperature settings
- Warm air dryer with 5 temperature levels
- Built-in automatic deodorizer
- PREMIST to mist the bowl before each use
- EWATER+ to automatically sanitize the wand inside and out
- CLEAN RESIN to repel grime on the seat and wand
- Pressure-based seat sensor for safe operation
- SoftClose seat and built-in nightlight
- Up to 4 customizable user presets
- WASHLET+ compatibility for seamless toilet integration
- Docking station which makes installation easy
Insight from John at Premier Bidets:
Both the KS6 and S5 represent TOTO’s move toward a cleaner, slimmer, more modern design language. Compared to older models like the C5 or K300, they look sleeker and use fewer materials, yet pack in more features.
Both the KS6 and S5 represent TOTO’s move toward a cleaner, slimmer, more modern design language. Compared to older models like the C5 or K300, they look sleeker and use fewer materials, yet pack in more features.
TOTO KS6 vs S5: Key Differences Explained
1. Availability and Where to Buy
The Washlet KS6 is an online exclusive, available only through trusted e-retailers like Premier Bidets. The TOTO S5 is sold both online and in showrooms, which is helpful for customers who want to see the unit in person before purchasing.
John’s take:
Some customers view showroom availability as a stamp of approval as they can see and touch the product. That said, savvy online shoppers might prefer the KS6 because it’s sometimes priced better online, and they can order from home.
Some customers view showroom availability as a stamp of approval as they can see and touch the product. That said, savvy online shoppers might prefer the KS6 because it’s sometimes priced better online, and they can order from home.
2. Shape and Color Options
- KS6: Elongated only, Cotton White
- S5: Elongated or Round, Cotton White or Sedona Beige
John says options can sometimes matter:
It opens the door for a lot of households that aren’t working with a standard elongated white toilet. Older homes often have round bowls, and if the bathroom has warm tones or beige fixtures, the S5 fits right in without clashing.
It opens the door for a lot of households that aren’t working with a standard elongated white toilet. Older homes often have round bowls, and if the bathroom has warm tones or beige fixtures, the S5 fits right in without clashing.
3. Extra Spray Function
Both bidet seats include oscillating and pulsating spray options. Pulsating spray provides a rhythmic water pattern that can enhance comfort and improve cleaning.
John says:
If pulsating spray matters, you can't go wrong with either. Many customers find it more comfortable and gives them more options to find what they like best.
If pulsating spray matters, you can't go wrong with either. Many customers find it more comfortable and gives them more options to find what they like best.
4. Lid Design and Overall Aesthetic
The TOTO S5 features a slimmer, more modern lid that blends cleanly into today’s bathroom styles.
The TOTO KS6 uses a traditional seat-style lid that still looks refined, but has a more familiar, curved shape to it.
TOTO Washlet KS6 vs TOTO Washlet S5 Comparison Table
| Feature | TOTO KS6 | TOTO S5 |
| Where to Buy | Online Only | Online + Showroom |
| Seat Shape | Elongated | Elongated or Round |
| Color Options | Cotton White | Cotton White or Sedona Beige |
| Lid Design | Traditional curved lid | Slim, modern lid |
| Remote Control | Intuitive remote with personalize cleansing | Intuitive remote with personalize cleansing |
| User Presets | 4 | 4 |
| Instant Warm Water | ✅ | ✅ |
| Front/Rear Cleanse | ✅ | ✅ |
| EWATER+ Wand Cleaning | ✅ | ✅ |
| PREMIST Bowl Spray | ✅ | ✅ |
| CLEAN RESIN Surfaces | ✅ | ✅ |
| Heated Seat | 5 Temp Levels | 5 Temp Levels |
| Warm Air Dryer | 5 Temp Levels | 5 Temp Levels |
| Automatic Deodorizer | ✅ | ✅ |
| Night Light | ✅ (bowl) | ✅ (bowl) |
| SoftClose Seat | ✅ | ✅ |
| WASHLET+ Compatible | ✅ | ✅ |
| Buy KS6 Bidet Seat | Buy S5 Bidet Seat |
Why the TOTO S5 Would Be A Better Fit
- More Fit Options: Available in round and elongated to fit your toilet. More color options with white and beige.
- Modern Lid Styling: Sleek, low-profile design complements both older and updated bathrooms
- Showroom Availability: Can be seen in a showroom and purchased in person if you want to touch and see it.
Why the TOTO KS6 Is A Better Fit
- Online Exclusive Convenience: Easy to order through trusted e-retailers like Premier Bidets
- Minimalist Look: Designed to blend into spa-like bathrooms with understated elegance
- Same High-End Features: Delivers the same functionality and performance as the S5, with a slightly different design aesthetic
Which TOTO WASHLET Should You Choose?
If you're looking for a round seat and want color options, go with the TOTO S5 Washlet.
If you're good with a white elongated seat and want something sleek, minimalist, and easy to order online, the TOTO KS6 Washlet is a fantastic pick.
Final Thoughts on the new TOTO S5 vs TOTO KS6
Whether you choose the S5 Washlet or the KS6 Washlet, you’re getting a premium bidet seat with top-of-the-line features, advanced hygiene technology, and a sleek, modern design.
Still have questions? Contact us and we will help find the perfect fit for you and your home.
More Great WASHLET Comparisons
Looking for more ways to compare TOTO’s latest WASHLETS? Check out the Washlet comparison chart and these popular blog posts:
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