The best bidet toilet seats
A seat buys you warm water, a heated seat and a dryer. It also needs a plug, and the published cord lengths here run from 3.9 to 4 feet — measure before you spend.
By Sawyer V. · · How we research
The short answer
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Quick picks
Tap any row for the full write-up. Prices are checked against Amazon rather than remembered — where we have no verified figure the button says so.
Check the outlet before you read the rest of this page
Go and stand at your toilet and find the nearest power outlet. This one measurement decides which half of this page is relevant to you, and it is the reason bidet seats get returned.
The published cord lengths on this page are 3.9 feet for the Thinline T22 and 4 feet for the SE400. Brondell does not publish one at all for the SE600. Four feet is not much: it is roughly the distance from behind a toilet to the corner of the room, and no further.
And you cannot bridge the gap with an extension lead. Not because of an arbitrary rule, but because a mains extension on a bathroom floor is one of the genuinely bad ideas in home electrics. If the outlet does not reach, the honest options are a non-electric seat, an attachment, or an electrician — and the last one is not a Saturday job. The full argument is in does a bidet need electricity.
Tank versus instant heating
The most consequential specification on an electric bidet seat is how it heats water, and manufacturers publish it clearly.
A tank seat — Brondell publishes this for the SE400 and SE600 — holds a small reservoir of pre-heated water. It is cheaper to build and completely fine for one person, but the reservoir is finite: a long wash, or two people in a row, will run into the end of it.
An instant ceramic heater — Brondell publishes this for the Thinline T22 as providing “endless warm water” — heats on demand. There is no reservoir to exhaust. It costs more and it is the right answer in a household of more than one.
Profile height: the specification you feel every day
A bidet seat sits on top of the bowl, so its height is added to your toilet. The published range on this page is dramatic: 2.55 inches for the non-electric EcoSeats, 3.9 inches for the Thinline T22, and 6.10 inches for the SE-series.
Six inches is a genuinely different toilet. It is not automatically bad — taller people and anyone with knee trouble often prefer it — but it is a change you will notice every single day, and it is worth measuring against the toilet you have rather than discovering after fitting.
What none of them publish
Not one seat on this page publishes a wattage. That is a real gap and we are going to be blunt about it: it means nobody, including us, can tell you what a heated bidet seat costs to run.
We do this arithmetic everywhere else on this site — towel warmers are a good example, where published wattages let us turn a spec into cents a day. For bidet seats the input simply does not exist in the manufacturers’ published material, so instead of estimating we are telling you the figure is missing. If Brondell publishes wattages, this page gets the sums the same week.
Fitting one
Every seat here mounts on the two bolt holes your existing seat uses. Take the old seat off, put the mounting plate on, slide the new seat into place, and connect the water. Brondell publishes the SE400 as a “simple, DIY installation” with “no plumber required”.
The one part that is genuinely harder than it looks is getting a fifteen-year-old seat’s bolts off. Corroded nuts under a toilet rim are an awkward, knuckle-scraping job, and it is worth budgeting more time for that than for everything else combined. The install guide covers it.
Every pick in full
4 we would buy, and one we would not. Each carries its Renter-Safe Install Rating, the published specs behind it, and the honest gap in what we know.
1. Best overall
Brondell Swash Thinline T22 Bidet Toilet Seat
Brondell · Swash Thinline T22 · best for warm water that does not run out
Instant ceramic heating rather than a tank, the thinnest published profile here, and a three-year warranty.
The single most important difference between electric bidet seats is how they heat water, and Brondell publishes it plainly for this one: an “instant ceramic water heater provides endless warm water”. A tank-based seat holds a reservoir and runs out; an instant heater does not, which matters in a household where two people use it in a row.
The other headline is the profile. At “3.9″(H)” — described by Brondell as “the thinnest in the industry at 99mm” — it sits considerably lower than the 6.1-inch SE-series seats, which is the difference between a toilet that feels normal and one that feels like it is wearing a hat.
You also get a three-level heated seat, a five-level warm air dryer with temperature control, and an “adjustable, 5-position stainless steel nozzle” with an automatic rinse. Brondell publishes a three-year warranty, which is triple what the SE seats get.
Renter-Safe Install Rating
- Drilling
- None
- Tools
- Not published
- Time to fit
- Not published
- Power
- Standard outlet — Brondell publishes a 3.9 ft cord
- Reversible on move-out
- Fully
Why: Reversible in the sense that matters — it bolts on where the old seat was and comes off the same way. The published 3.9-foot cord is the shortest on this site, so the outlet has to be genuinely close to the toilet.
Read from published documentation, not from fitting one. Brondell, Swash Thinline T22 bidet toilet seat. How the verdict is derived: renter-safe ratings explained.
What’s wrong with it
The published cord is “3.9 ft” — the shortest on this page. If your outlet is across the room, this is the seat that will not reach.
What we can’t tell you
Brondell does not publish a wattage for the ceramic heater, so we cannot calculate what it costs to run. On a seat whose whole pitch is instant heating, that is a figure we would like.
Published specifications
| Profile | “3.9″(H)”, described as “the thinnest in the industry at 99mm” |
|---|---|
| Water heating | “instant ceramic water heater provides endless warm water” |
| Seat | “three-level heated seat” |
| Dryer | “5-level warm air dryer with temperature control” |
| Nozzle | “adjustable, 5-position stainless steel nozzle” with a “hygienic nozzle rinse” that “runs automatically” |
| Controls | “conveniently located side arm controls” with programmable settings |
| Dimensions | Round “19.6″(L) x 15″(W) x 3.9″(H)”; elongated “20.7″(L) x 15″(W) x 3.9″(H)” |
| Weight | 9 lbs round, 9.1 lbs elongated |
| Power | “120V / 60Hz” with a “3.9 ft” cord |
| Warranty | “3-year limited warranty provided by US-based customer service team” |
| Wattage | Not published |
#ad We have no verified live price for this one right now, so we are not showing a number. How we’re funded.
2. Best full-feature seat
Brondell Swash SE600 Bidet Toilet Seat
Brondell · Swash SE600 · best for a remote and a nightlight
Tank heating, heated seat, warm-air dryer, nightlight and a slow-close lid — the traditional full-fat bidet seat.
The SE600 is the conventional shape of a premium bidet seat: a tank heating system, a heated seat, an adjustable warm air dryer, a remote, a “gentle-glow nightlight” and a slow-close seat and lid. Brondell publishes a “rust-resistant stainless steel nozzle” with a self-cleaning cycle that runs before and after each wash.
The tank is the trade-off against the T22. A tank gives you consistent warm water for a normal wash and then needs time to recover, which is fine for one person and noticeable with a queue.
At “6.10″(H)” and 9.9 lbs it is a substantial object, which is worth picturing on your toilet before ordering.
Renter-Safe Install Rating
- Drilling
- None
- Tools
- Not published
- Time to fit
- Not published
- Power
- Standard outlet — the wattage and any GFCI requirement are not published
- Reversible on move-out
- Fully
Why: The seat itself swaps onto the existing bolt holes, so it is reversible. The catch is the plug: it needs a working outlet within cord reach of the toilet, and a lot of older bathrooms simply do not have one. That is a conversation with a landlord, not a drill.
Read from published documentation, not from fitting one. Brondell, Swash SE600 bidet toilet seat. How the verdict is derived: renter-safe ratings explained.
What’s wrong with it
Brondell publishes neither a wattage nor an outlet requirement for this seat, which is a strange gap on a product whose defining feature is that it plugs in.
What we can’t tell you
Without a published wattage we cannot give you a running cost, and without a published cord length we cannot tell you how far it reaches. Both are on the SE400's page and absent here.
Published specifications
| Seat | “heated seat and adjustable warm air dryer” |
|---|---|
| Water heating | “tank heating system provides warm water wash” |
| Nozzle | “rust-resistant stainless steel nozzle” with a “self-cleaning nozzle setting” that “runs before and after your wash” |
| Dimensions | Elongated “18.5″(W) x 20.87″(L) x 6.10″(H)”; round “18.5″(W) x 19.5″(L) x 6.10″(H)” |
| Weight | 9.9 lb elongated, 9.7 lb round |
| Warranty | “1-year limited warranty provided by US-based customer service team” |
| Wattage | Not published on the product page |
| Outlet requirement | Not published on the product page |
#ad We have no verified live price for this one right now, so we are not showing a number. How we’re funded.
3. Best without an outlet
Brondell Swash EcoSeat S102 Non-Electric Bidet Seat
Brondell · EcoSeat S102 · best for warm water in a bathroom with no plug
Warm and cool wash, dual nozzles, gentle-close lid — and not a watt of electricity anywhere.
This is the seat for the very common bathroom that has no outlet near the toilet. Brondell publishes a “warm and cool water wash” with “easy water temperature control”, achieved by connecting to the sink’s hot water supply, and states it is “powered by water pressure alone, no electricity required”.
You get “2 separate nozzles”, fixed-position and retractable, with a self-cleaning cycle before and after each wash, and a “gentle-close, sit-upon seat and lid”. At 2.55 inches high and 4.5 lbs it is far slimmer and lighter than any electric seat here.
The catch, and the reason it scores Ask first rather than Safe: the warm water comes from a second connection under the basin. Reversible, but worth mentioning to a landlord.
Renter-Safe Install Rating
- Drilling
- None
- Tools
- Not published
- Time to fit
- Not published
- Power
- None
- Reversible on move-out
- Fully
Why: It replaces the toilet seat on the existing bolt holes, which is fully reversible — but Brondell’s warm wash is fed from the basin’s hot supply, so there is a second connection under the sink. Reversible, still worth mentioning.
Read from published documentation, not from fitting one. Brondell, Swash EcoSeat S102 bidet toilet seat. How the verdict is derived: renter-safe ratings explained.
What’s wrong with it
No heated seat and no dryer. Without electricity there is nothing to heat them with, and the warm wash depends entirely on your basin's hot supply being close by.
What we can’t tell you
Brondell publishes no tool list and no install time for the hot-water connection, which is the part of this install that is genuinely less trivial than it sounds.
Published specifications
| Water | “warm and cool water wash” with “easy water temperature control”, taken from the sink’s hot water supply |
|---|---|
| Nozzles | “2 separate nozzles”, “fixed-position, retractable”, with a “self-cleaning nozzle cycle” before and after each wash |
| Seat | “gentle-close, sit-upon seat and lid” |
| Dimensions | Elongated “20.03″(W) x 14.39″(L) x 2.55″(H)”; round “18.47″(W) x 14.34″(L) x 2.55″(H)” |
| Weight | 4.5 lbs elongated, 4.6 lbs round |
| Power | “powered by water pressure alone, no electricity required” |
| Warranty | “1-year limited warranty provided by US-based customer service team” |
| Tools | Not published |
#ad We have no verified live price for this one right now, so we are not showing a number. How we’re funded.
4. Best value electric
Brondell Swash SE400 Bidet Toilet Seat
Brondell · Swash SE400 · best for full features, side-arm controls, published cord length
Heated seat, tank warm water, dryer, deodorizer and — unusually for this category — a published cord length of four feet.
The SE400 is the SE600 with side-arm controls instead of a remote, and it publishes the one specification the SE600 does not: “120V / 60Hz” with a 4-foot power cord. That single figure is more useful than most of the feature list, because it tells you whether the seat will physically work in your bathroom.
Otherwise you get a tank heating system, a heated seat, an adjustable warm air dryer, a “built-in deodorizer”, a “rust-resistant stainless steel nozzle”, and an “intuitive side-arm control panel” with a one-touch auto mode. Brondell publishes it as a “simple, DIY installation” with “no plumber required”.
Renter-Safe Install Rating
- Drilling
- None
- Tools
- Not published
- Time to fit
- Not published
- Power
- Standard outlet — Brondell publishes a 4-foot cord
- Reversible on move-out
- Fully
Why: The seat swaps onto the existing bolt holes, so it is fully reversible. The constraint is the published 4-foot cord: measure from the toilet to the nearest outlet before you buy, and never bridge the gap with an extension lead in a bathroom.
Read from published documentation, not from fitting one. Brondell, Swash SE400 bidet toilet seat. How the verdict is derived: renter-safe ratings explained.
What’s wrong with it
Side-arm controls mean reaching down and around rather than picking up a remote, which some people find genuinely awkward.
What we can’t tell you
Like every seat here, Brondell publishes no wattage, so we cannot tell you what the heated seat costs to leave on.
Published specifications
| Seat | Heated toilet seat |
|---|---|
| Water heating | “tank heating system provides warm water wash” |
| Nozzle | “rust-resistant stainless steel nozzle” |
| Dryer | “adjustable warm air dryer” with temperature controls |
| Deodoriser | “built-in deodorizer” |
| Controls | “intuitive side-arm control panel” with “one-touch auto mode” |
| Dimensions | Elongated “18.5″(W) x 20.9″(L) x 6.1″(H)”; round “18.2″(W) x 19.5″(L) x 6.1″(H)” |
| Weight | 9.7 lbs elongated, 9.5 lbs round |
| Power | “120V / 60Hz” with a 4-foot power cord |
| Installation | “simple, DIY installation” with “no plumber required” |
| Warranty | “1-year limited warranty provided by US-based customer service team” |
| Wattage | Not published |
#ad We have no verified live price for this one right now, so we are not showing a number. How we’re funded.
The one to skip
Brondell Swash EcoSeat S101 Non-Electric Bidet Seat
Brondell · EcoSeat S101 · best for almost nobody, once you have seen the s102
Nearly identical to the S102 on every published measurement, minus the warm-water mixing that is the whole point of a non-electric seat.
The S101 is a good product in a bad position: its own sibling does more for a modest difference. Brondell publishes the S101 as delivering “refreshing, ambient temperature wash” — cold only — while the S102 publishes a “warm and cool water wash”.
Everything else is effectively the same: dual self-cleaning retractable nozzles, a gentle-close sit-upon seat and lid, adjustable pressure, the same 2.55-inch height, the same one-year warranty, weights within 0.1 lb of each other.
If you are buying a non-electric seat rather than an attachment, warm water is very close to the only reason to do so — an attachment already gives you a cold wash for a fraction of the money. Take the S102, or take an attachment and keep the difference.
Renter-Safe Install Rating
- Drilling
- None
- Tools
- Not published
- Time to fit
- Not published
- Power
- None
- Reversible on move-out
- Fully
Why: It replaces the toilet seat on the existing bolt holes and takes cold water from the toilet's own supply. One connection, on the toilet, and the original seat goes straight back on.
Read from published documentation, not from fitting one. Brondell, Swash EcoSeat S101 bidet toilet seat. How the verdict is derived: renter-safe ratings explained.
What’s wrong with it
Cold water only, at seat money. An attachment gets you the same cold wash for considerably less and keeps the seat you already have.
What we can’t tell you
Brondell publishes no tools, no install time and no material breakdown for either EcoSeat, so we cannot tell you what the extra buys you in build quality, if anything.
Published specifications
| Water | “deliver refreshing, ambient temperature wash” — cold only, no heating |
|---|---|
| Nozzles | “dual, self-cleaning nozzles”, “angled nozzles”, “retractable” |
| Controls | Dial with FRONT, OFF and REAR settings, and “fully adjustable water pressure” |
| Seat | “gentle-close, sit-upon seat and lid” |
| Dimensions | Elongated “20.03″L × 14.39″W × 2.55″H”; round “18.47″L × 14.34″W × 2.55″H” |
| Weight | 4.6 lbs elongated, 4.5 lbs round |
| Power | “no batteries or electricity required” — “powered by water pressure alone” |
| Warranty | “1-year limited warranty provided by US-based customer service team” |
| Tools | Not published |
There is no buy button on this one. It is easy enough to find if you want it anyway — we would rather point you at something that is still on the wall in a year.
Questions people actually ask
is a bidet toilet seat worth it
If you have an outlet within four feet of the toilet, a seat adds warm water, a heated seat and usually a dryer for several times the price of an attachment. If you do not, an attachment delivers most of the daily benefit for a fraction of the money and none of the wiring.
is electric bidet worth it
The electric part buys you three things an attachment cannot: a heated seat, a warm-air dryer, and warm water that does not depend on the basin's hot supply. Whether that is worth it comes down to how cold your bathroom is and whether there is a plug.
is there a heated toilet seat
Yes — every electric bidet seat here includes one, and the Thinline T22 publishes three levels of it. Heated seats also exist without any bidet function, but a bidet seat is usually the better buy since the heating element is the same.
what is a smart toilet seat
The term usually means an electric bidet seat with programmable settings and a remote — Brondell publishes programmable user settings and a five-position adjustable nozzle on the Thinline T22. There is no agreed definition, so read the feature list rather than the label.
Sources
Read next
Back to Bidets & Toilet Seats.