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TOTO Washlet S5 Electronic Bidet Toilet Seat vs Bio Bidet BB-1000 Electric Bidet Toilet Seat
Which one has the downsides you can live with?
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The short answer
TOTO Washlet S5 Electronic Bidet Toilet Seat ranks higher (#2 vs #3 of 8) and scores better on wash quality, water temperature, comfort & features, leaks & durability. Bio Bidet BB-1000 Electric Bidet Toilet Seat wins on easy install & fit.
The biggest complaint about the TOTO Washlet S5 Electronic Bidet Toilet Seat is no controls on the seat; for the Bio Bidet BB-1000 Electric Bidet Toilet Seat it's warm water runs out. Pick the one whose catch bothers you less.
Side by side
| TOTO Washlet S5 Electronic Bidet Toilet Seat | Bio Bidet BB-1000 Electric Bidet Toilet Seat | |
|---|---|---|
| Rank in bidets & bidet seats | #2 | #3 |
| Price tier | $$$ | $$ |
| Type | Electric seat | Electric seat |
| Amazon 1–2★ share | 6% | 11% |
| Overall score | 4.4 | 3.5 |
| Wash quality | 5.0 | 4.0 |
| Water temperature | 5.0 | 3.0 |
| Easy install & fit | 3.5 | 4.0 |
| Comfort & features | 4.5 | 3.5 |
| Leaks & durability | 4.0 | 3.0 |
Price tiers: $ under $100 · $$ $100–400 · $$$ over $400. Highlighted = clearly better (a score gap of 0.3 or more, or a 1–2★ share at least 3 points lower). Scores are explained, with sources, on each product's page.
Top complaints
TOTO Washlet S5 Electronic Bidet Toilet Seat
- No controls on the seat
Wirecutter says the S5 has no onboard buttons, so if the remote is damaged or dropped in the toilet, you can't use the bidet. One of its long-term testers switched to a side-panel model after kids dropped a remote, and replacements aren't cheap.
Source: Wirecutter - Pricey, and settings need the manual
Wirecutter says the long-term settings on the remote are often baffling without the manual. CNN Underscored calls the price too high for anyone but the most bidet-obsessed.
Source: Wirecutter, CNN Underscored - Needs an outlet; plain plastic T fitting
Like all electric seats, it needs a nearby outlet; Good Housekeeping cites about $300 to have one added. Wirecutter notes the T fitting is gray plastic rather than chrome; Toto says that is less likely to damage the tank threads. Amazon's small set of reviews calls installation mixed.
Bio Bidet BB-1000 Electric Bidet Toilet Seat
- Warm water runs out
Amazon's review summary says the seat is always warm, but the warm water doesn't last long.
- Laggy remote
CNN Underscored says the remote often took multiple presses to start or stop the bidet. Amazon's summary says some owners report the remote only works when held.
- Some units break after a year
Amazon's summary calls durability mixed: some units last three or more years, while others broke after one. Some shoppers also consider it overpriced. 8% of ratings are 1-star.
Who should pick which
Pick the TOTO Washlet S5 Electronic Bidet Toilet Seat if
Households that want saved settings for each person
Remote control you can mount on the wall
Pairing with a Toto toilet
Skip it if: You have no outlet near the toilet; Kids might drop the remote (there are no side controls); You don't need presets (the S2 is cheaper)
Pick the Bio Bidet BB-1000 Electric Bidet Toilet Seat if
A full feature set under $400
Energy-saving modes
Fast-warming air dryer
Skip it if: You want endless warm water for long washes; A laggy remote would annoy you; You want the most reliable brand record
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