Toto Washlet S2 vs Bio Bidet BB-1000 Supreme
Quick take: The Toto Washlet S2 lists for about $10 less; the Toto Washlet S2 heats water via tankless (instant heat) while the Bio Bidet BB-1000 Supreme is tank heater.
| Spec | Toto Washlet S2 | Bio Bidet BB-1000 Supreme |
|---|---|---|
| Approx. price | ~$349 | ~$359 |
| Type | Electric Bidet Seat | Electric Bidet Seat |
| Water heating | Tankless (Instant Heat) | Tank Heater |
| Controls | Side Control Panel | Wireless Remote |
| Toilet fit | Elongated & Round versions | Elongated & Round versions |
| Power | Needs GFCI outlet within 4 ft | Needs GFCI outlet within 4 ft |
| Spray pressure | 5 pressure levels | Adjustable, class-leading strength |
| Nozzle | Self-cleaning EWATER+ wand | Stainless 3-in-1 nozzle |
| Install | 30-45 min DIY | 30-45 min DIY |
| Warm water | yes | yes |
| Heated seat | yes | yes |
| Warm air dryer | yes | yes |
| Wireless remote | no | yes |
| Night light | yes | no |
| Deodorizer | yes | yes |
| Self-cleaning nozzle | yes | yes |
| Feminine wash | yes | yes |
| Warranty | 1-year limited | 3-year full |
What owners say
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
- +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
- −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 — bidet-forum 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
Bio Bidet BB-1000 Supreme
- +Same pump-driven vortex/enema wash as the $470 BB-2000 — longtime forum pick for strong spray on a budget, regularly dipping to $299 with coupon codes
- +The 3-in-1 stainless-casing nozzle with a replaceable tip means years-old units are still serviceable with cheap parts
- +Full 3-year warranty (100% parts and labor) — double or triple what most sub-$400 competitors offer
- +A decade-plus of Home Depot and other retailer reviews shows these commonly run 5+ years, a track record newer tankless models can't claim
- +Available in true round and elongated versions, unlike the elongated-only Discovery DLS
- −Tank heater gives roughly 30 seconds of warm water before it turns cool — the single most repeated complaint; long-wash users should pay up for the BB-2000's hybrid heater
- −IR remote fires its signal from the top edge, so when wall-mounted above the seat the bidet sometimes misses commands — one reviewer called the design 'hilariously bad'
- −Multiple owners report remotes dying after 2-3 years while the seat itself keeps working, and replacements cost ~$50
- −Chunky early-2010s styling with a tall tank hump; it looks its age next to an Alpha JX or Discovery DLS
- −The dryer is as weak as the BB-2000's — expect a damp finish and a reach for paper
- −No user presets or eco scheduling; energy-save mode is a single crude button
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