TOTO Washlet KS5 vs KS2: What's the Difference?

The TOTO Washlet KS5 and the TOTO Washlet KS2 share almost every comfort feature TOTO builds into this generation of WASHLET seats, but they part ways on how you control them. The Washlet KS5 pairs with a wireless remote that stores settings for up to four people, while the Washlet KS2 uses a side arm control panel with no memory presets.

That control difference, plus a $51 price gap, is really what you're choosing between. Pick the Washlet KS5 if remote control and multi user memory matter to you, or pick the Washlet KS2 if you're happy reaching over to the seat itself and want to save a little money.

Why These Two Get Mixed Up

Both washlets launched as part of TOTO's 2026 lineup alongside the Washlet S1, and both use the same curved lid, slim tankless chassis, and Cotton White finish. From a few feet away, they genuinely look like the same seat.

Type "is toto ks5 the same as ks2" into Google and you'll see people asking this constantly. The confusion makes sense once you see how much of the feature list overlaps.

TOTO KS5 and TOTO KS2 at a Glance

The Washlet KS5 and Washlet KS2 share nearly the entire feature list. The one real functional gap is how you control the seat, and that comes paired with a $51 price difference between the two.

Model Overview and Where Each Fits in the Lineup

The Washlet KS5 (models SW3216 and SW3215) and the Washlet KS2 (models SW2336 and SW2335) both arrived as part of TOTO's 2026 online exclusive lineup, alongside the Washlet S1. All three sit below TOTO's S2 and S5 washlets, which add hygiene extras like PREMIST and EWATER+ that none of these three 2026 launch models include.

The Washlet KS5 sits at the top of this trio with its wireless remote, while the Washlet KS2 sits in the middle with an arm panel and a lower price. The Washlet S1 trims a few more comfort features to hit an even lower entry price if budget is your main concern.

Key Similarities Between the Two Seats

Before getting into the one meaningful difference, it's worth seeing just how much these two seats actually share:

• Tankless, instantaneous water heating with unlimited warm water
• Oscillating and pulsating spray for front and rear wash
• Adjustable water temperature, pressure, and spray position
• Self cleaning wand
• CLEAN RESIN surface that resists dirt and grime
• Heated seat with adjustable temperature
• Warm air dryer with three temperature settings
• Built in night light
• SoftClose seat and lid
• Quick release docking station for cleaning and installation
• Auto energy saver mode
• Cotton White finish, available in elongated or round

If all you want is reliable warm water comfort in either bowl shape, either seat gets you there.

The Real Difference: Remote Control vs Arm Panel

The Washlet KS5's Wireless Remote

The Washlet KS5 comes with an illuminated wireless remote that can sit on the counter or mount to the wall. It stores personalized wash, seat temperature, and dryer settings for up to four different people.

That matters most in a shared bathroom, where everyone in the house can recall their own saved preset instead of adjusting settings from scratch every time.

The Washlet KS2's Side Arm Panel

The Washlet KS2 puts its controls on a panel attached to the side of the seat itself. You adjust wash, temperature, and dryer settings by reaching over rather than pointing a remote.

There's no per user memory, so if more than one person shares the bathroom, everyone is working from whatever settings were used last.

Cleaning Features and Wand Technology

Both seats clean their own wand automatically before and after every use, and both use TOTO's CLEAN RESIN surface to resist dirt and waste buildup on the wand and seat. Neither model steps up to TOTO's EWATER+ system, which sanitizes the wand with electrolyzed water instead of a plain water rinse.

What Neither Model Includes

If you're coming from TOTO's S2, S5, or KS6 washlets, note that neither the Washlet KS5 nor the Washlet KS2 includes PREMIST bowl misting or an automatic air deodorizer. Both of those hygiene extras are reserved for TOTO's higher tier washlets.

If bowl misting or active odor control matters to you, take a look at the Washlet KS6 or the Washlet S5 instead.

Comfort and Convenience Features

Heated Seat and Warm Air Dryer

Both washlets include a heated seat with adjustable temperature and a warm air dryer with three temperature settings. Neither seat runs cold or leaves you reaching for a towel, regardless of which control style you pick.

Night Light and Auto Energy Saver

Both models include a built in night light that illuminates the bowl, and both use TOTO's auto energy saver mode to cut power draw when the seat has been idle for a while. You get the same ambient convenience either way.

Installation and Compatibility

Both the Washlet KS5 and Washlet KS2 come in elongated and round versions, so bowl shape isn't a deciding factor between them the way it is with some other TOTO comparisons. Installation is the same for both: remove your existing seat, mount TOTO's bracket, connect the water supply hose, and plug into a nearby grounded outlet, ideally GFCI protected.

Measure your toilet before ordering either seat. Elongated bowls run about 18.5 inches from the mounting holes to the front of the bowl, while round bowls run about 16.5 inches, and ordering the wrong shape is the most common return reason for either model.

Price and Value Breakdown

As of publishing, Premier Bidets prices the Washlet KS5 at $450 and the Washlet KS2 at $399, in either bowl shape. That $51 gap buys you the wireless remote and its four user memory, since every other feature on both seats is otherwise identical.

If remote control and saved presets for multiple household members sound worth $51 to you, the Washlet KS5 is the easy call. If you're fine reaching over to the seat and would rather put that money toward something else, the Washlet KS2 delivers the same core experience.

Who Should Buy the TOTO Washlet KS2

The Washlet KS2 makes sense for a single user bathroom, a guest bathroom, or anyone upgrading from a non bidet seat who wants TOTO's core comfort experience without paying extra for a remote they might not use. It's also a straightforward pick if you're outfitting more than one bathroom and want to keep costs down across multiple seats.

Who Should Buy the TOTO Washlet KS5

The Washlet KS5 is the better fit for a primary bathroom that multiple people share, since the four user memory means nobody has to readjust settings after someone else used it. It's also the pick if you simply prefer controlling a bidet seat from a remote rather than reaching over to the seat itself.

Final Verdict: Making the Right Choice for Your Home

Choose the Washlet KS2 if you want TOTO's core WASHLET comfort at the lower price point in this pair, and you don't mind a side arm panel instead of a remote. Choose the Washlet KS5 if remote control and multi user memory are worth $51 to you, especially in a bathroom more than one person uses.

Where to Buy With Confidence and Support

Either way, you're getting the same core TOTO WASHLET comfort, with instant warm water, a heated seat, and a self cleaning wand backed by TOTO's engineering. Still not sure which one fits your bathroom?

Reach out to the Premier Bidets team. Our friendly bidet experts are standing by to help you find the perfect bidet seat for your home or business.