Toto Washlet S2 vs Toto Washlet A2
Quick take: The Toto Washlet A2 costs $109 less; the Toto Washlet S2 heats water via tankless (instant heat) while the Toto Washlet A2 is tank heater; only the Toto Washlet S2 has a warm-air dryer.
| Spec | Toto Washlet S2 | Toto Washlet A2 |
|---|---|---|
| Price | $349 | $240 |
| Rating | 4.8★ (5) | 4.4★ (331) |
| Type | Electric Bidet Seat | Electric Bidet Seat |
| Water Heating | Tankless (Instant Heat) | Tank Heater |
| Controls | Side Control Panel | Side Control Panel |
| Toilet Fit | Elongated & Round versions | Elongated only |
| Power | Needs GFCI outlet within 4 ft | Needs GFCI outlet within 4 ft |
| Spray Pressure | 5 pressure levels | 5 pressure levels |
| Nozzle | Self-cleaning EWATER+ wand | Self-cleaning dual-action wand |
| Install | 30-45 min DIY | 30-45 min DIY |
| Warm water | Yes | Yes |
| Heated seat | Yes | Yes |
| Warm air dryer | Yes | No |
| Wireless remote | No | No |
| Night light | Yes | No |
| Deodorizer | Yes | No |
| Self-cleaning nozzle | Yes | Yes |
| Feminine wash | Yes | Yes |
| Warranty | 1-year limited | 1-year limited |
Pros & cons
Toto Washlet S2
- ✓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
- ✓19% slimmer than the C2 it replaces, so it no longer looks like a fax machine bolted to your toilet
- ✓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
- ✓Ditching the always-on tank cut standby power draw; eco mode plus on-demand heat makes it cheaper to run than tank seats left plugged in 24/7
- ✓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
- ✗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
- ✗Launched summer 2025, so there's no long-term reliability record — the C2's decade of proven durability doesn't automatically transfer to the new tankless platform
- ✗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
Toto Washlet A2
- ✓Cheapest ticket into genuine TOTO — ~$240 on Amazon and it dips to $223-228 in recurring deals, barely more than a SmartBidet SB-1000 and less than half the S5
- ✓The wash itself is full TOTO: soft rear spray, rear cleanse, and front (feminine) cleanse with oscillation and 5 pressure levels — spray comfort budget Korean/Chinese seats don't match
- ✓Wand self-rinses before and after every use, same hygiene routine as the $649 S5
- ✓Heated SoftClose seat with three temperatures plus an energy-saver timer keeps standby costs in check
- ✓Dead-simple side panel with physical buttons — guests and older relatives figure it out without a manual, and there's no remote to lose or run out of batteries
- ✓Slim, low-profile body for a tank unit — it doesn't have the fax-machine hump of older C100-era seats
- ✓TOTO's docking bracket install: slides off for deep cleaning and the included tee fits standard 7/8-inch supply lines, realistic 30-45 minute DIY
- ✓Owner reviews consistently call it the reliable no-drama option — 4.4 stars with most complaints about missing features, not failures
- ✗Tank heater gives roughly 30-60 seconds of warm water, then cools — back-to-back users get a cold surprise; the S2 ($349) fixed exactly this with instant heat
- ✗No warm-air dryer, no deodorizer, no night light — the $349 S2 includes all three, so the $110 step-up buys a lot
- ✗Elongated bowls only — round-bowl owners have to move up to the S2, which sells both fits
- ✗No PREMIST bowl wetting and no EWATER+ sanitizing — TOTO's signature cleanliness tech starts one rung up the ladder
- ✗No user presets or memory; you re-dial pressure and position every visit
- ✗Tank sips electricity 24/7 keeping water hot unless you religiously use the energy-saver timer
- ✗1-year warranty is stingy next to Brondell's 3-year coverage on the Swash 1400
- ✗For ~$60 more, the Brondell LE99 ($299) adds a dryer, night light, and wireless remote — the A2 wins on wash feel, loses on checklist