Toto Washlet S2
Electric Bidet Seat
$349

Toto

Toto Washlet S2

4.8(5 reviews across retail listings)

TOTO's entry-level Washlet, introduced in summer 2025 as the direct replacement for the discontinued C2. The big change: the C2's water tank is gone — the S2 heats on demand so warm water never runs out — and the body is 19% slimmer. You keep the heated seat, PREMIST bowl spray, EWATER+ wand sanitizing, deodorizer, and warm-air dryer, and gain a night light, all run from a side arm panel at a ~$350 home-center street price.

Price
$349
Water Heating
Tankless (Instant Heat)
Controls
Side Control Panel
Best For
First-time bidet buyers who want genuine TOTO build quality without paying for a remote.

Specifications

Type
Electric Bidet Seat
Water Heating
Tankless (Instant Heat)
Controls
Side Control Panel
Toilet Fit
Elongated & Round versions
Power
Needs GFCI outlet within 4 ft
Spray Pressure
5 pressure levels
Nozzle
Self-cleaning EWATER+ wand
Install
30-45 min DIY
Warranty
1-year limited
Heated Seat
Yes
Warm Air Dryer
Yes

Features

Warm WaterHeated SeatWarm Air DryerNight LightDeodorizerSelf-Cleaning NozzleFeminine Wash

Pros

  • Instant heating fixes the old C2's biggest complaint — that tank ran lukewarm after roughly 35-45 seconds and the second user in a shared bathroom got cold water; the S2 stays warm indefinitely
  • At $348 street (Home Depot) it's the cheapest ticket into TOTO's EWATER+ system, which sanitizes the wand with electrolyzed water before and after every wash — rivals at this price rinse the nozzle with plain water
  • PREMIST wets the bowl before you sit, which measurably reduces waste sticking — owners report scrubbing the bowl about half as often
  • Warm-air dryer, deodorizer, and night light are all included — the old C2 had no night light, and Brondell's similarly-priced LE99 drops the deodorizer entirely
  • TOTO's docking-station install is genuinely 30-minute DIY — the seat slides off one bracket for deep cleaning and the included tee fits standard 7/8-inch supply lines
  • Both elongated and round versions at the same price — fit flexibility the home-center KS6 sibling doesn't offer

Cons

  • The side arm panel adds about two inches of width — in a narrow alcove it can pinch against a vanity, and unlike the S5 there's no way to add a remote later
  • No user presets: you re-dial pressure, position, and temperature every visit, while the S5/KS6 remote stores four personal profiles
  • The 1,273-watt instant heater demands a dedicated GFCI outlet and the cord is only 3.9 ft — budget for an electrician if your outlet is across the room
  • TOTO's dryer remains the gentlest in the business — owners consistently report 60+ seconds of lukewarm breeze for a job a square of paper finishes in five
  • One-year warranty is stingy next to the 3-year full coverage Bio Bidet puts on similarly-priced seats
  • Spray tops out gentler than Korean rivals — r/bidets regulars who want serious pressure point buyers to a Bio Bidet instead of any TOTO
  • List price is $780 and some retailers ask near it — Home Depot and Amazon routinely sell the same seat for $350-430, so never pay list

Common Questions

Does the S2's warm water run out mid-wash like the old C2's did?
No — this is the headline change from the C2 it replaced. The S2 heats water on demand instead of storing it in a tank, so the wash stays warm indefinitely, where the C2 famously turned lukewarm after roughly 35-45 seconds and left the second user in a shared bathroom with cold water.
What kind of outlet does the S2 need?
Its 1,273-watt instant heater wants a dedicated GFCI outlet, and the cord is only 3.9 feet — TOTO advises against extension cords. If your nearest outlet is across the room, budget for an electrician before the seat arrives; that's often the hidden cost of any tankless Washlet.
Will the S2 fit a round toilet?
Yes — TOTO sells elongated and round versions at the same price, fit flexibility its Home Depot sibling, the KS6, doesn't offer. Measure from the seat bolts to the front rim before ordering: roughly 18.5 inches means elongated, about 16.5 means round.
Is the side control panel annoying compared to a remote?
It adds about two inches of width, which can pinch against a vanity in a narrow alcove, and you re-dial pressure, position, and temperature every visit since there are no user presets. There's also no way to add a remote later — if presets matter, the S5 or KS6 is the right tier.
Can the warm-air dryer replace toilet paper?
Not realistically. TOTO's dryer is the gentlest in the business — owners consistently report 60+ seconds of lukewarm breeze for a job a square of paper finishes in five. Treat it as a finishing touch and keep a roll nearby.

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