Toto Washlet S5

Model SW3446#01

Warm wateryes
Needs an outletyes
Heated seatyes

The 2025 successor to TOTO's best-selling C5, with the tank heater swapped for instantaneous heating and a 19%-slimmer body. It's the sweet spot of the current S-lineup: wireless remote with four user presets, heated seat, warm-air dryer, deodorizer, new night light, PREMIST, and EWATER+ wand sanitizing. Functionally it's an S2 plus the remote and presets — you're paying roughly $300 for that convenience at a street price around $650.

Approx. price

~$588

Best for Households of 2-4 who'll actually use the personalized presets — the default 'just get the TOTO' pick on owner forums.

We may earn a commission. Price and availability on Amazon’s site may differ from the snapshot above.

Specifications

Water heating: Tankless (Instant Heat)
Controls: Wireless Remote
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

Features

Warm wateryes
Heated seatyes
Warm air dryeryes
Wireless remoteyes
Night lightyes
Deodorizeryes
Self-cleaning nozzleyes
Feminine washyes

Remote + 4 Presets
Endless Warm Water
Night Light

What owners like

+Four user presets on the remote (up from two on the old C5) store position, pressure, and temperatures per person — the single best shared-bathroom feature at this price
+Instantaneous heating ends the C5's notorious 35-45-second warm-water window; wash for five minutes straight and it never runs cold
+Gained a bowl-illuminating night light the C5 never had — genuinely useful at 3 a.m. and one less reason to pay up for the S7 tier
+EWATER+ sanitizes the wand with electrolyzed water before and after each use, and PREMIST keeps the bowl slick so waste doesn't stick
+Heated seat spans 82-97°F across five settings, and the seamless seat molding has no crevice seam for grime to collect in — a real cleaning-day upgrade over the C5
+Warm-air dryer adjusts 95-140°F — a wider, hotter range than the Brondell Swash 1400's famously tepid dryer

Common complaints

−You're paying roughly $300 over the S2 for a remote and presets — the wash hardware underneath is otherwise identical
−Several early owners note the seat sits tall with a slight forward slope ('feels like it's pushing you forward'), a byproduct of the 7.4-inch rear housing
−The 1,271-watt draw needs a dedicated GFCI within reach of the 3.93-ft cord, and TOTO's manual warns against extension cords
−The dryer, though adjustable, is still TOTO-gentle: plan on 1-2 minutes or a courtesy dab of paper where a Bio Bidet BB-2000 finishes in about 40 seconds
−One-year warranty on a $650 seat, while Brondell backs the cheaper Swash 1400 for three years
−MSRP is $780 and 'sale' pricing is perpetual — legitimate street price floats $570-670, so treat anything near list as a ripoff

Questions buyers ask

Is the S5 worth roughly $300 more than the S2?

Only if the remote earns its keep. The wash hardware underneath is otherwise identical — same instant heat, EWATER+, and PREMIST — so you're paying for the wireless remote and its four user presets. For a household of 2-4 who'll actually use per-person profiles, it's the single best shared-bathroom feature at this price; for a solo bathroom, save the money.

Does the warm water ever go cold mid-wash?

No. The S5 swapped the old C5's tank for instantaneous heating, ending the C5's notorious 35-45-second warm-water window. Wash for five minutes straight and it never runs cold.

Any comfort quirks I should know before buying?

Several early owners note the seat sits tall with a slight forward slope — a byproduct of the 7.4-inch rear housing — described as 'feels like it's pushing you forward.' Most acclimate, but if you're sensitive to seat geometry it's worth sitting on one at a showroom first.

What are the electrical requirements?

A dedicated GFCI outlet within reach of the 3.93-foot cord — the instant heater draws 1,271 watts and TOTO's manual warns against extension cords. Plan the outlet location before install day.

Should I ever pay the $780 list price?

No. The 'sale' pricing is perpetual — legitimate street price floats between $570 and $670 at Home Depot and Amazon. Treat anything near list as a ripoff and wait a week.

Compare the Toto Washlet S5

vs Bio Bidet Discovery DLS vs Toto Washlet KS6 vs Toto Washlet S7

Related bidets

Toto Washlet KS6

TOTO's home-center exclusive, replacing the discontinued K300 in the 2025 lineup refresh. Under the lid it's essentially a Washlet S5 — same remote with four user presets, instantaneous heating, EWATER+, PREMIST, night light, dryer, and deodorizer — sold through Home Depot and Amazon at a lower street price (about $500 vs the S5's $650). The trade-off is choice: elongated bowls and Cotton White only. For most buyers it's the value play of TOTO's current range.

Heating: Tankless
Control: Wireless Remote
Install: 30-45 min DIY
Warranty: 1-year limited

S5 Features for Less
Endless Warm Water
4 User Presets

Best for Elongated-toilet owners who want the full S5 experience and would rather keep the ~$150 difference.

Full specs & owner notes

~$349

Toto / Electric Bidet Seat

Toto Washlet S2

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.

Heating: Tankless
Control: Side Control Panel
Install: 30-45 min DIY
Warranty: 1-year limited

Endless Warm Water
EWATER+ Sanitizing
Entry TOTO Price

Best for First-time bidet buyers who want genuine TOTO build quality without paying for a remote.

Full specs & owner notes

~$240

Toto / Electric Bidet Seat

Toto Washlet A2

TOTO's true entry point (SW3004, launched 2021 and still current): a tank-heated washlet with a heated SoftClose seat, dual-action rear/front wash with oscillation, and a wired side panel — and nothing else. No dryer, deodorizer, PREMIST, or night light; those start at the S2. With Amazon regularly selling it in the $225-$295 band against a $567 list, it's the cheapest way to put a genuine TOTO wand on your toilet.

Heating: Tank Heater
Control: Side Control Panel
Install: 30-45 min DIY
Warranty: 1-year limited

Cheapest Real TOTO
Heated Seat
Tank Water Heater

Best for Budget buyers who want TOTO's wash quality and reliability and will happily skip the frills.

Full specs & owner notes

← Back to all bidets