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Toto Washlet vs Washlet+

If you're shopping Toto bidets, you've probably run into the Toto Washlet vs Washlet+ question — and you're not alone.

The two products look nearly identical in photos, share most of the same model numbers (S7A, S7, S5, S2), and cost wildly different amounts. Below, we break down what's actually different, which Toto Washlet seats are available in each version, and how to pick the right setup for your bathroom.

TOTO Washlet vs Washlet+


The short answer

A Toto Washlet is a bidet seat that installs on your existing toilet. A Washlet+ is the same seat redesigned to pair with a Toto toilet that hides every cord and hose. The bidet features are identical — what changes is the look, the install, and the price.

Toto Washlet vs Washlet+ at a glance

Same features, different installation. Here's how to choose in 60 seconds.

TOTO Washlet

Bidet seat only

TOTO Washlet
  • Installs on most existing toilets
  • DIY install in 30 minutes
  • Available in round and elongated
  • Cord and hose visible on the side
  • Same heated seat and warm water cleansing
Shop TOTO Washlets
Seamless look

TOTO Washlet+

Bidet Seat + Matching toilet

TOTO Washlet+
  • Brand-new Toto T40 toilet included
  • Power cord and water hose hidden inside the toilet
  • Auto-flush available on S7A and S7 systems
  • High-efficiency 1.28 or 1.0 GPF flush
  • Same heated seat and warm water cleansing
Shop TOTO Washlet+

How they compare

The six things buyers ask about most.

How they compare
  Washlet Washlet+
Use existing toilet Yes No
Cord & hose Visible Hidden
Price range $450 – $1,470 $854 – $5,900
Auto-flush option Not available S7A & S7 only
Installation DIY-friendly Plumber needed
Bidet features Full range Full range

Related models

Four current models in this category. Same features either way.

TOTO Washlet S7A Bidet Seat

Top tier
View product →

TOTO Drake Washlet+ S7A Two-Piece

Premium
View product →

TOTO WASHLET S5 Bidet Seat

Mid-tier
View product →

TOTO Aimes WASHLET+ S5 One-Piece Toilet

Entry
View product →

How a Washlet+ actually works

The "plus" in Washlet+ refers to a hidden channel built into Toto's T40 toilet series. When you install a Washlet+ bidet seat on a T40 toilet, the power cord and water supply line route through this channel and exit at the back of the unit, where they connect to your outlet and shutoff valve out of sight.

A regular Washlet has its cord and hose exiting the side of the seat. The connection works perfectly well, but the cords remain visible — particularly noticeable on minimalist bathrooms or when viewed from the side. Both versions deliver the same warm-water cleansing, heated seat, and self-cleaning wand.

TOTO Washlet+ with TOTO toilet

The features are identical

An S5 Washlet and an S5 Washlet+ have the exact same wash modes, water temperature settings, seat heating, deodorizer, and self-cleaning wand. Toto uses the same internal hardware in both versions — the only physical difference is where the cord and hose exit the seat.

The one Washlet+ exclusive is auto-flush capability, available only on S7A and S7 systems when paired with a compatible T40 toilet. The auto-flush kit is sold separately and connects the seated sensor to the toilet's flush mechanism, automatically flushing several seconds after you stand up.

Toto Washlet with standard toilet

Installation and total cost

A regular Washlet is a DIY install for most homeowners — about 30 minutes with basic tools. You'll need a GFCI outlet near the toilet, which most modern bathrooms already have. Total cost stays between $399 and $1,400 depending on the model.

A Washlet+ system replaces your toilet entirely, so plan for a plumber to disconnect the old toilet, install the new one, and connect the Washlet+ seat. Budget $200–$500 for installation on top of the $1,299–$5,900 system cost. What you get for the higher price: a seamless cord-free look, a brand-new Toto toilet, and (on S7A and S7 systems) the option of auto-flush.

Compare more options

Other buying guides on Bidets USA you might find helpful.

TOTO Washlet S7 vs S7A
Top-tier showdown
Washlet S2 vs S5
Two budget picks
TOTO G5A vs Neorest
Popular Smart Toilets
TOTO Drake vs Drake II
Drake Washlet+
TOTO Washlet Comparison Chart
Compare all TOTO Washlets
Best TOTO Bidets
Best of the best

Which is right for you?

Both options use Toto's same award-winning bidet technology. The right choice comes down to your toilet, your budget, and your renovation plans.

TOTO Washlet

A premium bidet seat that installs on your existing toilet in about 30 minutes. The fastest, most affordable way to add Toto's warm-water cleansing to your bathroom.

Choose this if you…

  • Like your current toilet
  • Just need a bidet seat
  • Want the fastest upgrade

TOTO Washlet+

A Washlet+ Ready bidet seat paired with a matching Toto T40 toilet, sold as a complete bundle. Every cord and hose is hidden inside the toilet for a fully integrated, designer look.

Choose this if you…

  • Are remodeling anyway
  • Want the seamless look
  • Want auto-flush capability

Frequently Asked Questions

  • The best TOTO Washlet model is the TOTO S7A Washlet bidet seat. It comes with premium features and everything you need. It's also one of the more expensive TOTO Washlets.

  • Not in terms of bidet features — they're functionally identical. An S5 Washlet and the S5 Washlet+ system use the same heated seat, warm water cleansing, deodorizer, and self-cleaning wand. What you're paying more for with a Washlet+ is the included Toto T40 toilet, the hidden cord and hose routing, and (on S7A and S7 systems) the option of auto-flush. If you already love your current toilet, a regular Toto Washlet gives you the same cleansing experience at a fraction of the price.

  • Only if your current toilet is a Toto T40 Washlet+ Ready model. A Washlet+ seat is engineered with its power cord and water hose exiting the bottom of the seat rather than the side, so it requires a toilet with a hidden routing channel built into the bowl. Bidets USA sells Washlet+ as complete bundled systems — the seat and matching T40 toilet together — because that's how the seamless cord-free look is achieved and how most customers buy it.

  • T40 is Toto's designation for any toilet engineered to work with the Washlet+ system. T40 toilets have a hidden channel built into the back of the bowl that routes a Washlet+ seat's power cord and water supply line through the toilet itself, hiding them from view. Toto offers T40 toilets in many silhouettes — Aimes, Aquia IV, Drake, Legato, UltraMax II, and Carlyle II — so you can pick a style that fits your bathroom while still getting the integrated Washlet+ look.

  • Toto currently offers four Washlet seats in the Washlet+ lineup: the S7A (top-tier with slim profile and auto open/close lid), the S7 (premium with nightlight), the S5 (mid-tier with EWATER+ wand cleaning), and the S2 (entry-level). Each pairs with one or more compatible T40 toilet families. The cleansing features on these seats are identical to their standalone Washlet counterparts — only the cord and hose routing differs.

  • Some Toto Washlet+ flush automatically. Auto-flush is available only on Washlet+ systems paired with the S7A or S7 bidet seats, and it requires a separately sold Auto Flush kit that connects the seat's sensor to the toilet's flush mechanism. When installed and enabled, the toilet flushes a few seconds after you stand up. Washlet+ systems paired with the S5 or S2 seats don't support auto-flush, and a standalone Washlet bidet seat can't be paired with this feature on any toilet.