Does TOTO Make a Round WASHLET?
TOTO does make round WASHLETs, and this collection is where they sit: the WASHLET S1, KS2, KC2, S7 and S7A are all offered in a round-bowl version. Round is the smaller half of TOTO's WASHLET lineup — several models are elongated only — so the list is short, and each seat on it does a clearly different job.
Arm-control seats: S1 and KS2
The S1 and KS2 put the controls on a panel attached to the side of the seat. Both use an instantaneous water heater, so warm water is continuous rather than a small tank that runs cold partway through, and both add a heated seat with temperature control, a self-cleaning wand that cleans itself before and after each use, CLEAN RESIN surfaces, a SoftClose seat and an auto energy-saver mode. The KS2 goes further with a warm air dryer on three temperature settings and a night light that illuminates the bowl. Both are among the more affordable seats in TOTO's WASHLET range.
The middle option: KC2
The KC2 keeps an illuminated arm control panel and pairs it with a gentle aerated, warm water dual action spray with an oscillating feature, warm air drying on three variable settings, a heated seat with temperature control and a SoftClose seat. It is the round seat to look at when you want drying and a heated seat without paying for a remote.
Remote-controlled seats: S7 and S7A
The S7 and S7A are the round WASHLETs with a multifunction remote, continuous warm-water cleansing, a warm-air dryer and a heated seat. Both add EWATER+, where electrolyzing water produces a sterilizing agent, hypochlorous acid, that keeps the wand and toilet bowl hygienic, and PREMIST, which wets the surface of the bowl to aid the removal of waste. The S7A also opens and closes its lid automatically, like the rest of the bidets with auto open/close lids. One detail worth knowing before you order: on both models the round bowl size is offered in the Contemporary lid style, while the Classic lid is elongated only.
What a Round Seat Actually Buys You
A round bowl and its seat sit about two inches shallower into the room than an elongated pair, and in a small bathroom those two inches decide whether the door clears the bowl. Common building guidance points to around 21 inches of clear space in front of the toilet; when an elongated bowl would eat into that, round is the shape that works. The trade-off is choice — fewer bidet seats are made in round, which is exactly why a short, checked list like this one is useful. If you are still choosing the fixture itself, browse round toilets, and if the bowl is going in a rental, most seats here unbolt and leave with you.
Which Is Better, a Round or an Elongated Toilet Seat?
Neither shape is better outright — the right seat is the one that matches the bowl you already own, because round and elongated seats are not interchangeable. An elongated seat on a round bowl overhangs at the front; a round seat on an elongated bowl leaves ceramic exposed at the rim. Elongated is the more supportive shape and has far more models made for it. Round wins on floor space and is the sensible choice for a powder room, a tight alcove, or anywhere a door or vanity would clash with a longer bowl.
Measure the bowl, not the seat
Find the two bolts at the back where the seat hinges. Measure in a straight line from the center of those bolts to the front edge of the ceramic. About 16.5 inches is round; about 18.5 inches is elongated. Measure the ceramic rather than the seat, since a seat can overhang, and if you land between the two figures, take the old seat off and measure again. The client's guide to TOTO elongated vs round bowls walks through the same measurement, and if your bowl turns out to be the longer shape, shop TOTO elongated toilet seats instead.
How to Pick the Best Round WASHLET for Your Bathroom
The best round toilet seat to buy is the one whose control style and feature set you will actually use every day, since all five round WASHLETs here already cover warm water and a heated seat. Four questions narrow it down fast.
1. Remote or arm control?
The S1, KS2 and KC2 use a control panel attached to the side of the seat. The S7 and S7A use a multifunction remote. An arm panel costs less and never loses batteries; a remote is easier to read and reach, and it is what most people picture when they think of a Japanese bidet seat. Compare across brands in bidets with remote control.
2. Do you want warm air drying?
The KS2 and KC2 both include a warm air dryer with three temperature settings; the S7 and S7A include a warm-air dryer as well. If drying matters more than anything else on the list, start there rather than at the top of the price range — see every model with the feature in bidets with a dryer.
3. How much bowl hygiene do you want automated?
All five seats have a self-cleaning wand and TOTO's seamless seat design, which removes the gap under the seat where dirt collects. Only the S7 and S7A add EWATER+ and PREMIST, which handle the bowl itself rather than just the wand.
4. Where is the outlet, and how tight is the space?
Every round WASHLET here is electric and ends its installation plugged into a grounded bathroom outlet. Check the space behind the bowl too, since each seat mounts on a docking station that sits at the back. For genuinely tight rooms, bidets for small bathrooms is the shortlist worth starting from.