Smart Toilets vs. Regular Toilets: Key Differences

The difference between a smart toilet and a regular toilet comes down to electronics. A regular toilet flushes with a handle and gravity. A smart toilet adds a built-in bidet, heated seat, dryer, sensors and often an electric flush, all powered from an outlet beside it.

That makes a smart toilet more comfortable and more hands-free, but also far more expensive, more complex to install and more dependent on power. For many homes, the sensible middle ground is a regular toilet with a smart toilet seat. This guide compares all three so you can decide which fits your bathroom and budget.

Everything here comes from manufacturer documentation and general product knowledge. We have not physically tested these products; see our methodology for how we research.

Side-by-side comparison

	Regular toilet	Regular toilet + smart seat	Integrated smart toilet
Flush	Manual handle or button, gravity or pressure-assist	Manual (seat doesn’t control the flush on most toilets)	Often automatic, with remote and backup buttons
Bidet wash	No	Yes	Yes
Heated seat and dryer	No	Yes on most electric seats	Yes
Automatic lid	No	Some premium seats	Common
Power needed	No	GFCI outlet	GFCI outlet; some models call for a dedicated circuit
Works in a power outage	Yes	Toilet yes; seat features no	Backup flush only
Installation	Standard toilet swap	Toilet as is, plus a seat swap	Heavier, more complex toilet swap plus electrical
Relative cost	Lowest	Moderate	Highest

Features and comfort

A regular toilet does one job well. It has no moving electronics, nothing to program and nothing to charge. Comfort comes from bowl shape and height, which is why many people choose an elongated, chair-height model.

A smart toilet adds a full suite of comfort features. TOTO’s NEOREST AS page, for example, lists a heated seat, a warm-air dryer with five settings, an automatic deodorizer, a nightlight, an instantaneous water heater and an automatic lid. Kohler’s Veil K-5401-PA spec sheet lists a similar set, plus a motion-activated cover and a touch-screen remote.

Most of those comfort features are also available in a smart toilet seat. The TOTO WASHLET S7A, for instance, adds an automatic lid, instant water heating, a dryer and a deodorizer to a compatible elongated toilet. What a seat generally can’t add is the automatic flush and the fully integrated look.

Hygiene and cleaning

With a regular toilet, cleaning is simple and familiar. Skirted designs, which cover the trapway with smooth sides, are easier to wipe down.

Smart toilets add hands-free features that reduce how often you touch the toilet. Auto lid and auto flush mean no handle or lid to grab. Many also include self-cleaning systems for the wand and bowl. TOTO describes EWATER+ as producing hypochlorous acid through electrolysis to help keep the wand and bowl sanitary, and lists PREMIST on the G5A to wet the bowl before use.

The trade-off is more parts to care for. Wands, filters and seat surfaces need regular attention, and you should only use the cleaners the manufacturer allows. Our maintenance checklist covers the routine for seats, and most of it applies to integrated toilets too.

Water use

Both types can be very efficient. The EPA says WaterSense toilets use 1.28 gallons per flush or less, against a federal standard of 1.6 gallons. Plenty of regular toilets meet the WaterSense mark.

Many smart toilets go lower. TOTO lists a dual flush of 1.0 or 0.8 gpf on the NEOREST NX2 and AS, and Kohler lists 0.8 or 1.0 gpf on the Eir. Low-flow regular toilets exist too, so check the gpf figure on any model rather than assuming one type always uses less.

Bidet washing uses a small amount of extra water, but it can cut toilet paper use.

Installation and infrastructure

Plumbing

Both connect to the same floor drain and cold-water supply. The rough-in, measured from the finished wall to the center of the drain, is most often 12 inches, according to TOTO, though 10- and 14-inch rough-ins exist. Smart toilets are mostly built for 12 inches, so homes with other rough-ins have fewer choices.

Tankless smart toilets also need adequate water flow. Kohler lists a minimum flow rate of 6 gallons per minute for the Veil K-5401-PA. A regular gravity toilet just refills its tank and has no such requirement.

Electrical

A regular toilet needs no power. A smart toilet needs a grounded, GFCI-protected 120V outlet close by, and Kohler’s original Veil K-5401 spec sheet calls for a dedicated 15A circuit. If your bathroom has no outlet near the toilet, budget for a licensed electrician.

Difficulty

Smart toilets are heavier and have more connections. American Standard rates installing its SpaLet bidet toilet as moderate to difficult and recommends professional installation, especially for a first toilet install. See our smart toilet installation guide for the steps.

Accessibility and ease of use

For people with limited mobility or reach, a smart toilet’s hands-free features can make a real difference. An automatic lid removes the need to bend, auto flush removes the need to twist toward a handle, and washing can be easier than wiping for anyone with limited shoulder or hand movement. A wall-mounted remote also puts controls within reach while seated.

Height matters as much as electronics. Many smart toilets are listed at chair or comfort height. Kohler describes its Comfort Height feature on the Veil K-5401-PA and Eir as chair-height seating that makes sitting and standing easier for most adults. Regular toilets come in chair height too, so you can get the height benefit without the electronics. Our guide for older adults goes deeper.

Reliability, repairs and lifespan

A regular toilet’s parts are cheap and widely sold. Flappers, fill valves and handles fit many models, and most homeowners can replace them.

A smart toilet has a control board, motors, sensors, a pump and a water heater. When one fails, you usually need brand-specific parts or service. Warranties matter more here. Kohler lists a three-year limited warranty for its intelligent toilets, and American Standard lists three years on the Advanced Clean 100. Read the warranty terms before buying.

The vitreous china bowl can outlast the electronics. On an integrated model, the top unit can often be serviced separately. With a regular toilet plus a seat, a failed seat is simply replaced, and the toilet stays.

Cost

We don’t quote prices here because they change often. In relative terms:

• Regular toilet: the lowest cost to buy and install.
• Regular toilet plus smart seat: moderate. Seats range from budget to premium.
• Integrated smart toilet: the highest, with premium models costing many times more than a good regular toilet. Electrical work can add to that.

For dated price ranges from manufacturer listings, see how much a smart toilet costs.

Which should you choose?

Pick a regular toilet if

• You want the simplest, most reliable option
• There’s no outlet near the toilet and you don’t want to add one
• Your rough-in is 10 or 14 inches and smart choices are limited

Pick a regular toilet with a smart seat if

• Your current toilet works and you want washing, warmth and a dryer
• You rent or may move, since a seat can come with you
• You want to try bidet washing without a major purchase

Pick an integrated smart toilet if

• You are remodeling or replacing the toilet anyway
• You want auto flush and a fully hands-free routine
• A seamless look with hidden cords and hoses matters to you

If you go the seat route, these are the models we have researched:

Specifications from manufacturer product pages, checked November 2026. Models and availability change — confirm details on the listing before you buy. No prices are shown because they change frequently.

Frequently asked questions

Is a smart toilet more hygienic than a regular toilet?

It can mean less touching, thanks to auto flush, an auto lid and washing instead of wiping. Self-cleaning features also help between cleanings. But it still needs regular cleaning, and for any health concern, ask your doctor.

Can I turn a regular toilet into a smart toilet?

Partly. A smart toilet seat adds washing, a heated seat, a dryer and sometimes an automatic lid. TOTO also sells WASHLET+ sets that pair a toilet with a WASHLET seat and hide the cord and hose. Auto flush generally needs a compatible toilet; TOTO, for example, ties auto flush on its WASHLET+ S7 and S7A sets to compatible TOTO toilets and an optional kit.

Do smart toilets break more often?

They have more parts that can fail, and those parts are more specialized. That doesn’t mean a given model will be unreliable, but it does make the warranty and local service support more important.

Will a smart toilet raise my electric bill?

It adds some use for water heating, seat heat and the dryer. Instant water heaters and energy-saving settings help keep standby use down. Check the wattage listed in the spec sheet.

Next steps

To learn more about the technology, read how smart toilets work. If you’re leaning toward the seat route, see our best smart toilet seats list.