A smart toilet is a toilet with electronic features that go beyond flushing. At the basic level, that means a built-in bidet, heated seat, and automatic flushing. At the high end, it can include health sensors that analyze your urine, self-cleaning systems that use UV light, and app-based controls you operate from your phone. Prices range from a few hundred dollars for a smart bidet seat that attaches to your existing toilet to several thousand for a fully integrated unit.
Core Features Most Smart Toilets Share
The feature that defines most smart toilets is an integrated bidet, a retractable wand that sprays warm water for cleaning after you use the toilet. Beyond that, most models include a heated seat, a warm-air dryer, automatic flushing, and a deodorizer that neutralizes odors in real time. Many also have an automatic lid that opens as you approach and closes when you walk away, so you never touch the toilet at all.
Controls vary by model. Some come with a wall-mounted remote, others with a small panel on the side of the seat. Newer models connect to Wi-Fi and let you adjust water temperature, spray pressure, and seat warmth through a smartphone app. At least one manufacturer offers voice control with over 20 verbal commands, letting you operate the toilet completely hands-free.
Health Monitoring Capabilities
The most ambitious smart toilets go well beyond comfort. A prototype developed at Stanford Medicine can measure 10 different biomarkers from urine and stool samples. It checks for things like white blood cell count, blood contamination, protein levels, and glucose, each of which can flag conditions ranging from urinary tract infections to bladder cancer to kidney failure. The system also records video of urine flow and stool, then runs it through algorithms that assess flow rate, stream time, total volume, and stool consistency to spot abnormal patterns.
The idea is personalized monitoring. Someone with diabetes could have the toilet track glucose in their urine over time, while someone with a family history of kidney cancer could have it watch for traces of blood. This technology is still in development and not yet available in consumer products, but it represents the direction the industry is heading: turning a daily habit into a passive health screening.
Hygiene and Self-Cleaning
Smart toilets use several layers of cleaning technology. The bidet wand typically rinses itself before and after each use with treated water. Many current models add UV light sterilization, which kills bacteria on the nozzle and inside the bowl between uses. Some units also feature a foam shield, a layer of bubbles that coats the bowl surface before use to prevent waste from sticking and reduce splashback.
These systems reduce how often you need to manually scrub the bowl, though they don’t eliminate cleaning entirely. The nozzle, filters, and internal components still need periodic attention.
Water and Energy Use
Smart toilets are generally more water-efficient than conventional models. Older toilets can use up to 7 gallons per flush. Standard modern toilets use about 1.6 gallons. Smart toilets with dual-flush systems let you choose between a light flush (around 0.8 gallons) and a full flush (1.28 gallons), meeting or exceeding the EPA’s WaterSense standard of 1.28 gallons or less per flush.
They do, however, use electricity. The heated seat, warm water, dryer, and deodorizer all draw power continuously or on standby. Most models include energy-saving modes that reduce power consumption when the toilet hasn’t been used for a while, but your electricity bill will tick up slightly compared to a standard toilet.
Accessibility Benefits
For older adults or anyone with limited mobility, smart toilets solve real daily problems. The automatic lid eliminates bending. The bidet and dryer remove the need for the twisting and reaching that wiping requires, which matters significantly for people with arthritis, back injuries, or conditions that affect upper-body mobility. Research published in JMIR mHealth and uHealth found that automated bidet systems can decrease the physical assistance caregivers need to provide during toileting and hygiene.
Some prototypes take this further. One concept uses 3D depth sensors to automatically adjust the height and tilt of a motorized seat based on who sits down. Remote operation through smartphone apps also allows caregivers to assist without being physically present in the bathroom, preserving dignity for the person using the toilet while still providing support when needed.
Installation Requirements
The biggest practical difference between a smart toilet and a standard one is the electrical connection. Smart toilets run on a standard 120-volt circuit and need a dedicated 15-amp or 20-amp breaker so they don’t trip your electrical panel. The outlet must be a GFCI (ground fault circuit interrupter) type, the same kind used near sinks and bathtubs to prevent shock around water. If your bathroom doesn’t already have an outlet near the toilet, you’ll need an electrician to add one.
On the plumbing side, most smart toilets use a standard 12-inch rough-in, which is the distance from the wall to the center of the drain pipe. This is the same measurement most conventional toilets use, so swapping one out is usually straightforward. You’ll also need a water supply line connection, which is already there from your existing toilet. The installation itself is comparable to replacing a regular toilet, plus plugging in a power cord.
Ongoing Maintenance
Smart toilets require a few maintenance tasks that standard toilets don’t. TOTO, one of the leading manufacturers, recommends cleaning the deodorizer filter monthly with a dry toothbrush and extending the bidet wand monthly for a gentle wipe-down with a damp cloth. Every six months, you should clean the water filter drain valve (which involves turning off the water supply and removing a small component with a screwdriver) and replace the deodorizer cartridge entirely.
These tasks are simple but easy to forget. Skipping them doesn’t break the toilet, but you’ll notice reduced deodorizing performance and potentially weaker water flow over time. The electronic components, sensors, motors, and circuit boards add failure points that a standard toilet simply doesn’t have, so repairs can be more complex and expensive when something does go wrong.
What Smart Toilets Cost
The market breaks into two tiers. Smart bidet seats, which attach to your existing toilet and add heated water, a dryer, and a remote control, start around $200 to $500. Fully integrated smart toilets, where the technology is built into the entire unit from the ground up, typically range from $1,000 to $5,000 or more depending on features. Models with UV sterilization, auto-open lids, foam shields, and app connectivity sit at the higher end of that range. Japanese brands like TOTO have been making these for decades, but American and Chinese manufacturers now compete across every price point.