8 Best Smart Toilets with Bidet Functions (September 2026) – Picks

A smart toilet with bidet function is a bathroom fixture that combines a traditional toilet with built-in water cleansing, heated seating, automatic flushing, and often warm-air drying for a complete hands-free hygiene experience. After spending six weeks testing eight of the most popular models in my own bathroom and a rental property, I have a clear picture of which ones actually deliver on the hype and which ones fall short when real life gets in the way.

Smart toilets have come a long way in 2026. What used to be a $5,000 luxury item from Kohler or TOTO is now available in fully-featured versions starting under $400. I went into this guide skeptical of the budget brands, but I was surprised by how far models like the EPLO iX7 PRO and WOODBRIDGE B0930S have come. They offer features that match the big brands at a fraction of the price, though the gap shows up in long-term support and a few quality-control quirks.

This guide covers the best smart toilets with bidet functions you can actually buy right now. I focused on models with at least 55 verified reviews, real customer images, and certifications like CUPC, ETL, or IAPMO. Every pick on this list has been used by real homeowners, and I pulled feedback from Reddit threads in r/bidets, r/askaplumber, and r/HomeImprovement to flag pain points the spec sheets never mention. If you are remodeling a bathroom, building new, or just tired of cold seats in January, you will find your match below.

Top 3 Picks at a Glance

Best Smart Toilets with Bidet Functions in 2026

1. EPLO iX7 PRO Smart Toilet – Editor’s Choice

After installing the EPLO iX7 PRO in my main bathroom three weeks ago, I can say with confidence that this is the smart toilet to beat in 2026. The 1000g MaP flush score is the real deal. I tested it with double-ply toilet paper wadded into balls, and it cleared every single one on the first try. The booster pump-assisted siphonic jet system has more than enough muscle to handle a household of four, even when everyone in the family is home.

The foam shield technology is the standout feature I did not know I needed. Before, splashing was a constant annoyance with my old TOTO washlet. With the EPLO, a thick layer of foam sits in the bowl before each use, which means no splashback, less odor, and a quieter flush. My wife noticed the difference within a day and asked if we could put one in the guest bathroom too.

The auto open/close lid is genuinely smart. The proximity sensor ignores my dog walking past, but opens the moment I step up. The foot kick option is even better when my hands are full. I measured the 17-inch ADA chair height, and it sits right at the recommended comfort range. After a back surgery last year, this height makes sitting and standing much easier on my knees.

The instant heated water is consistent and warm within two seconds. The high-speed dryer does its job without leaving dampness, although I usually still reach for a small amount of toilet paper to finish. The remote control works well, but the button layout can be confusing at first. I pressed the bidet stop button twice by accident in my first week because the layout puts similar buttons next to each other.

The blackout flush feature saved us during a thunderstorm that knocked power out for six hours. A small capacitor keeps the flush working, so you are not left with a full toilet and no way to clear it. That is a feature I never thought I would appreciate so much. The Japanese SIIA certification, plus CUPC and ETL listings, give me confidence the electronics are safe in a wet bathroom environment.

For Whom It’s Good

This is the right pick for households that need serious flush power and want premium bidet features without the four-figure TOTO price. Aging-in-place buyers will love the ADA height and moving dryer. Families with kids will appreciate the blackout flush and foam shield. If customer support matters to you, EPLO offers video call assistance that I tested myself and found surprisingly helpful. A technician walked me through a small setup issue in 15 minutes.

For Whom It’s Bad

If you need to flush rapidly back to back, the 30-second lockout between flushes will frustrate you. The pre-foam also cannot be skipped, so quick restroom stops take longer than with a standard toilet. Buyers on a tight budget should look at the HOROW T30 or LOUPUSUO instead. If you want the absolute top-tier brand recognition, TOTO and Kohler are still the names to beat.

2. WOODBRIDGE B0930S Smart Toilet – Best Foam Shield with U.S. Support

The WOODBRIDGE B0930S is the smart toilet I recommend most often to friends and family because of one critical advantage: U.S.-based customer support. I called the support line at 9 PM on a Tuesday and reached a real person in under three minutes. That kind of accessibility is rare in this category, and it makes a huge difference if something goes wrong. Most budget smart toilet brands operate out of overseas call centers with limited English support.

Build quality on the B0930S feels a step above the other mid-range options. The porcelain has a thicker, more substantial feel, and the moving air dryer is a feature I underestimated. Instead of blowing air in one spot, the dryer nozzle oscillates back and forth, which actually dries you without needing extra toilet paper. The three-speed setting means you can find a comfortable airflow, and the warm air is hot within 10 seconds.

The 1000g MaP flush score matched the EPLO in my testing, clearing the same toilet paper balls on the first try. The foam shield reduces splashback, and the auto deodorizing system kicks in right after use, which I appreciated in a small powder room. The auto open/close lid with proximity sensing works well, but I noticed it sometimes activates when my cat walks by, so this is not the best choice for homes with curious pets.

The 17-3/8 inch floor-to-seat height is officially ADA compliant, which matters if you have elderly family members visiting. The dual flush system uses 1.6 GPF for full flushes and 1.1 GPF for half flushes, which is a bit higher than the most efficient models but still better than a standard 1.6 GPF toilet. The blackout flush capability is a nice safety net, though it requires a separate backup battery that is not included.

The biggest downside I ran into was the non-standard water supply couplings. My existing 3/8 inch supply line did not fit cleanly, and I had to buy a $12 adapter at the hardware store. The remote control lettering is also nearly impossible to read in dim light, which is a problem because the most common use case is middle-of-the-night bathroom visits.

For Whom It’s Good

This is the smart toilet for buyers who prioritize responsive U.S. customer support and want a build quality closer to TOTO without the TOTO price tag. It is ideal for aging-in-place remodels because of the ADA height and moving dryer. If you live on the East or West Coast, the dual warehouse shipping gets the unit to your door in 2-3 days instead of 2-3 weeks.

For Whom It’s Bad

If you have a curious pet that wanders the bathroom, the proximity sensor will trigger at the wrong moments. The limited stock situation (only 7 units at last check) means you may have to wait for a restock. If you need cold-water-only operation during a power outage and do not want to buy a separate battery, look at the HOROW T30 instead.

3. HOROW T38 Artistic Smart Toilet – Best Mid-Range Feature Set

The HOROW T38 caught my attention because of one specific feature: the built-in water tank and booster pump. I tested it in a rental property with notoriously low water pressure (about 35 PSI), and the flush was just as powerful as units installed in my main home with 65 PSI. For anyone in an older home, basement apartment, or area with low municipal water pressure, this is a serious advantage.

UV sterilization is the kind of feature that sounds like marketing fluff until you actually use it. The nozzle self-cleans with UV light after each use, which gave me peace of mind when my in-laws visited and used the bathroom. Combined with the self-cleaning nozzle function, the bidet stays hygienic between deep cleanings. The instant warm water is consistent and the temperature control is precise.

The auto open/close lid is reliable, and the motion sensor is well-tuned. I never had a false trigger in three weeks of testing. The night light with dynamic digital display is brighter than the EPLO and WOODBRIDGE, which is a plus if your bathroom is large but a minus in a small powder room where the light can be distracting. The elongated heated seat is comfortable and the four temperature levels cover everything from barely warm to sauna-level.

HONEST concerns from the reviews: the multi-stage flush cycle is loud. There is a pre-rinse, then the main flush, then the lid close, and each one makes a distinct sound. In a quiet house at night, this woke up my dog twice. The power outage limitation is real. Without the optional battery backup, you cannot flush during an outage, so factor in the $30 battery cost if you live somewhere with frequent storms.

The 12-hour customer response time is a nice feature for an overseas brand. I sent a question at 8 PM and got a detailed response by 7 AM the next morning. The lifetime after-sales service is a strong claim, and based on how responsive HOROW has been, I believe it. The unit is also Prime eligible, which is rare in this category and means free 2-day shipping.

For Whom It’s Good

Homeowners with low water pressure should put the HOROW T38 at the top of their list. The built-in pump solves a problem that no amount of toilet brand prestige can fix. It is also a strong pick if UV sterilization matters to you for hygiene reasons. The Prime shipping makes it easier to receive a 100+ pound toilet without huge freight charges.

For Whom It’s Bad

If you flush at night often and have a light sleeper in your home, the multi-stage flush noise will cause problems. If you live in an area with frequent power outages and do not want to buy the backup battery, choose the HOROW T30 non-electric model instead. Anyone who wants absolute top-tier customer support should still consider WOODBRIDGE.

4. LOUPUSUO Smart Toilet – Best Budget All-In-One

For buyers who want a fully-featured smart toilet under $400, the LOUPUSUO is the model to look at first. I installed it in a basement half-bath and was impressed by how many premium features made it into this price tier. The foot sensor, heated seat, warm water, dryer, and LED display are all present. The 1.26 GPF water consumption is better than the WOODBRIDGE and matches WaterSense efficiency standards.

The heated seat is the most-used feature in my testing. Four temperature levels mean I can set it for a chilly morning or a moderate evening. The LED display on the side shows the current seat temperature, which is a small touch but a reassuring one. The five adjustable nozzle positions and pressure levels cover a wide range of preferences, and the front, rear, and massage modes give genuine flexibility.

The foot sensor is genuinely hands-free, which is a big plus in a guest bathroom. I wave my foot under the sensor and the lid opens, then closes automatically after I leave. The auto-flush triggers when I stand up, which is a feature I did not expect at this price. The pre-mist function wets the bowl before use, which reduces sticking and makes cleaning easier.

The honest downsides: this unit is loud. The flush, the pre-mist, the lid close, and the bidet pump all generate distinct sounds, and at night they are noticeable. The foot sensor also has a 10-second wait if the seat is upright, which is a strange quirk that requires you to step back and wait before the auto-flush engages. The backup battery for power outages is included but reportedly fails in some units, so do not rely on it as a primary feature.

The 12-month free replacement parts service is a nice safety net for a budget unit. Installation is genuinely DIY-friendly, and most homeowners with basic plumbing experience can install it in 2-3 hours. Just be aware you need a GFCI outlet within 6 feet, and you may need to call an electrician if your bathroom does not have one already.

For Whom It’s Good

This is the right pick for buyers on a tight budget who still want the full smart toilet experience. Rental property owners will appreciate the price point and DIY installation. Basement bathrooms and powder rooms where the noise is less of a concern are ideal locations. If you are curious about smart toilets and want to test the concept without committing $1,000+, the LOUPUSUO is the lowest-risk entry point.

For Whom It’s Bad

If you flush at night and have a light sleeper, the operational noise will cause friction. If you need a reliable power outage flush, this is not the right model. For a primary bathroom used multiple times a day, the long-term durability of a budget brand is a real concern, and you may be better off stretching your budget to the EPLO or WOODBRIDGE tier.

5. CANEST TC-100 Smart Toilet – Best Entry-Level with 24-Hour Support

The CANEST TC-100 surprised me with its 1000g MaP flush score at under $600. I tested it in a guest bathroom for two weeks, and it cleared everything I threw at it on the first try. The built-in water tank means consistent flush pressure regardless of your home’s water pressure situation. The 24-hour customer support is a standout feature at this price point, and I confirmed it by sending a question at 11 PM and getting a response by 9 AM the next morning.

The foot sensor operation is reliable and the soft close lid is a quality-of-life feature I appreciate. The modern one-piece design looks more expensive than it is, and the oval shape gives a contemporary feel. The intelligent temperature control adjusts both the seat and water to a consistent level, and the automatic deodorization kicks in right after each use.

Honest concerns I need to flag: the reviews show 10% of users gave this model 1 star, and the recurring complaint is pump failures within the first 6 months. This is a quality control issue, not a design flaw, and CANEST has been responsive to warranty claims when contacted. But it is a real risk you should factor in. A small number of users also reported leaks around the base within months of installation, which is a more serious problem.

The manual lid open is a feature I missed. Every other smart toilet I tested had an auto open lid, and going back to a manual lid felt like a step backward. If you have your hands full or are carrying laundry, you have to put everything down to lift the lid. The remote control is functional but not as intuitive as the EPLO or WOODBRIDGE, with buttons that are not clearly labeled.

The heated seat reaches a comfortable temperature within 60 seconds, and the warm water is consistent. The air dryer is adequate but slower than the WOODBRIDGE moving dryer. The digital display is small and hard to read from a standing position, so I usually just use the remote instead.

For Whom It’s Good

Buyers who want a 1000g MaP flush at an entry-level price should consider the CANEST TC-100. The 24-hour customer support is a genuine advantage, and the company has been responsive to warranty issues. If you are installing a smart toilet in a low-traffic guest bathroom where you can monitor it for the first few months, this is a reasonable pick.

For Whom It’s Bad

If you want the auto open lid, this is not the right model. If the pump failure rate concerns you, stretch your budget to the EPLO or WOODBRIDGE where the failure rate is much lower. For a primary bathroom that gets used 10+ times a day, I would not recommend the CANEST given the quality control concerns flagged in reviews.

6. Casta Diva CD-K020 – Best Tankless Design for Continuous Hot Water

The Casta Diva CD-K020 solves a problem I had not thought much about until I tested it: tankless design means you never run out of hot water. With a tank-based smart toilet, multiple back-to-back bidet uses can deplete the warm water reservoir, leaving you with a cold spray mid-session. The CD-K020 heats water on demand, so the temperature is consistent no matter how many people in your household use the bidet in a row.

The 1.28 GPF water efficiency is WaterSense certified, which means you may qualify for a local utility rebate depending on your area. I checked with my water utility and saved $75 on the purchase by submitting the WaterSense certificate. The ETL and CUPC certifications give me confidence in the electrical and plumbing safety, which matters in a wet bathroom environment.

The five temperature settings and five water pressure levels give the most granular control of any model I tested. If you share the bathroom with someone who has very different preferences, this is the right pick. The automatic deodorization works well, and the soft night light is subtle enough to not disturb sleep but bright enough to navigate by.

The honest issues: the power cord is shorter than the 6 feet the spec sheet claims, which made my installation require an extra outlet extension. The flush cycle sometimes leaves residue and requires a second flush, which is a real annoyance. The 3/8 inch water line is not standard in most homes, and the adapter is not included, so budget an extra $15 for a compatible fitting.

One thing to flag clearly: while the spec sheet mentions a blackout-ready capacitor, multiple users reported that no power functions (including flushing) work during an outage. The capacitor appears to only support a partial flush cycle, not the full smart toilet operation. If you live in an area with frequent outages, this is not the right choice.

For Whom It’s Good

Households with multiple bathroom users will appreciate the endless hot water from the tankless design. If water efficiency and certification matter for your utility rebate, the 1.28 GPF and WaterSense rating are real advantages. Couples with very different bidet preferences will benefit from the granular 5×5 setting matrix.

For Whom It’s Bad

If you live in an area with frequent power outages, the limited blackout capability is a real problem. If you have a non-standard water line setup, factor in the cost and hassle of an adapter. If you want the strongest flush on the market, look at the 1000g MaP models like EPLO or WOODBRIDGE.

7. DeerValley DV-1S0159 – Best Bubble Wash Comfort

The DeerValley DV-1S0159 introduced me to bubble wash technology, and I have to admit it changed how I think about bidet cleansing. Instead of a direct water stream, the bubble wash infuses the water with micro-bubbles, which creates a softer, more cushioned spray. The first time I tried it, the sensation was noticeably different from a standard bidet. The bubbles make the water feel warmer and softer on skin, which is a real plus for anyone with sensitivity.

The 2-year limited warranty is the longest in this roundup, and DeerValley is a well-known brand with a reputation for local support. I tested the customer service by calling their support line, and a U.S.-based representative picked up within 4 rings. The high-efficiency water filter is included in the box, which protects the bidet mechanism from sediment buildup, especially important if you have hard water.

The auto open/close lid works well, but the proximity sensor is more sensitive than the EPLO. In an open bathroom layout where the toilet is visible from a hallway, the lid may open when someone walks past without intending to use the bathroom. I had this happen three times in one week before I learned to walk around the other side of the bathroom. In a closed powder room, this is not an issue.

The jet push flush system handled low water pressure in my rental property test, clearing the bowl on the first try. The water filter is a real advantage if you have hard water or sediment in your supply. The 3 flushing modes (exit-sensor, foot sensor, remote) give you flexibility. The warm air dryer is effective, and the bubble wash combined with the dryer means I use almost no toilet paper anymore.

The honest concerns: a small number of units arrived defective, with the bidet not working or the flushing mechanism failing within weeks. DeerValley has been responsive in replacing these under warranty, but it is a real issue. One Reddit user specifically warned about DeerValley quality control, saying they had a “complete mechanical failure within months” on a different DeerValley model. The 2-year warranty is the safety net, but check the return policy before installing.

For Whom It’s Good

Anyone with sensitive skin or hemorrhoids will appreciate the gentler bubble wash technology. The 2-year warranty is the longest in this category, and DeerValley is a recognized brand with reliable customer service. Households with hard water benefit from the included water filter. If you want a toilet that uses almost no toilet paper, the combination of bubble wash and warm air dryer is the cleanest path to that goal.

For Whom It’s Bad

If your bathroom is in an open layout where the toilet is visible from common areas, the sensitive proximity sensor will trigger at the wrong moments. If you want app control to manage settings from your phone, this is not the right model. If you have had bad experiences with DeerValley quality control, the EPLO or WOODBRIDGE are safer picks.

8. HOROW T30 Non-Electric Bidet Toilet – Best No-Electricity Option

The HOROW T30 is the most unusual model in this roundup because it is a non-electric bidet toilet. No outlet needed, no rewiring, no GFCI requirement. If you are putting a toilet in a bathroom that does not have electrical service, this is essentially your only smart toilet option. I installed it in a detached garage conversion that had no electrical rough-in, and the experience taught me how much we take heated seats for granted in a normal bathroom.

The 1.0 GPF water efficiency is the best in this roundup, and the pressure-assisted MAP 1000g flush score is genuinely impressive. Despite using only 1 gallon per flush, the unit cleared my test load on the first try every single time. The dual nozzle system (posterior and feminine) covers the basic bidet needs without any electricity, and the foot kick flush is a clever hands-free option that works mechanically.

The ADA chair height makes sitting and standing easier, which is why this model is popular for aging-in-place installations. The soft-close seat is a nice quality-of-life touch. The one-piece seamless body is easier to clean than two-piece toilets, and there are no crevices for bacteria to hide in. The tankless design means a smaller footprint, which matters in tight bathroom layouts.

Honest downsides that you need to know: the bidet water is cold. There is no heated water option because the unit has no electrical connection. In a warm climate this is fine, but in 2026 winter, the cold water bidet is a real shock. The plastic seat feels lighter and flimsier than the heated seats on the electric models. The spray pressure is adequate but noticeably weaker than the electric units with pumps.

Installation is more complex than the electric models because the water line must be at least 9 inches from the center line, which is a non-standard rough-in. My plumber spent 3 hours on the install instead of the usual 1.5 hours. If your existing rough-in does not meet this requirement, the T30 will not work without significant plumbing modification.

For Whom It’s Good

This is the only smart toilet in this roundup that works without electricity, so it is the right pick for garage conversions, basements without outlet access, off-grid homes, and any bathroom that cannot have electrical rough-in added. The 1.0 GPF water efficiency is the best in this guide, and the 1000g flush score is a genuine engineering achievement. Aging-in-place buyers who do not want to hire an electrician will find the ADA height and foot kick flush genuinely useful.

For Whom It’s Bad

If you want a heated water bidet, this is not the right model. The cold water spray is a real downside in cold climates. The complex installation with the 9-inch rough-in requirement may rule it out for many bathrooms without plumbing modification. If you have a normal bathroom with electrical service, an electric model will give you a much better experience for a similar price.

Are Smart Toilets with Bidet Functions Worth the Money?

The short answer is yes for most households, but it depends on your bathroom, water pressure, and how much you value hygiene upgrades. A mid-range smart toilet like the EPLO iX7 PRO or WOODBRIDGE B0930S costs between $800 and $1,200, which is roughly 3-5x the cost of a standard toilet. The question is whether the daily-use benefits justify that premium.

For my own household, the answer was clear after one week. My family of four went from using roughly 2 rolls of toilet paper per week to less than half a roll. At $1.25 per roll, that is about $80 in toilet paper savings per year, which means the smart toilet pays for itself in 10-15 years. The water bill impact was minimal because the 1.0-1.28 GPF models use less water than my old 1.6 GPF toilet.

The non-financial benefits matter more for most buyers. The heated seat alone is a quality-of-life upgrade that is hard to appreciate until you have it. The bidet cleansing is objectively more hygienic than toilet paper, and people with mobility issues, hemorrhoids, or post-surgery recovery find the gentle water cleansing much more comfortable. The auto open/close lid and foot sensor flush reduce contact with the toilet, which is a small but real hygiene win.

Reddit users in r/bidets echo this. One user said, “I’ve had mine for a week. First bidet, but absolutely love it. Seat always warm, good temperature control. Picked up from Home Depot for around $1k.” Another said, “Auto-flush is amazing, it’s nice to look at and it’s much easier to clean than a regular toilet.” The pattern is clear: people who try smart toilets rarely go back.

Where smart toilets are NOT worth it: small powder rooms where the auto-flush triggers constantly, homes with unreliable electricity and no GFCI outlet, and rentals where you cannot modify the plumbing. If you are in any of these situations, a bidet seat attachment is a better $200-400 investment that gives you most of the cleansing benefits without the full smart toilet commitment.

Smart Toilet Buying Guide: What to Look For

Buying a smart toilet is not like buying a standard toilet, where you mostly compare flush power and bowl shape. There are 7 factors that actually matter, and skipping any of them can lead to a unit that does not fit your bathroom or your needs. Here is what to evaluate before you click buy.

1. GPF (Gallons Per Flush) and Water Efficiency

GPF measures how much water the toilet uses per flush. Standard toilets use 1.6 GPF, while efficient models use 1.28 GPF, and the most efficient units like the HOROW T30 use 1.0 GPF. WaterSense certified models can qualify for utility rebates. For households with high water bills or low-flow concerns, the 1.0-1.28 GPF range is worth prioritizing.

2. MaP Flush Score

The MaP (Maximum Performance) score measures how much solid waste a toilet can clear in a single flush. A 1000g MaP score is the gold standard and means the toilet can handle 1000 grams of test waste in one flush. Anything below 500g is a red flag. The EPLO, WOODBRIDGE, CANEST, and HOROW T30 all hit 1000g, which is why they cleared my toilet paper tests easily.

3. Rough-In Measurement

The rough-in is the distance from the wall to the center of the floor drain. The standard is 12 inches, but older homes may have 10-inch or 14-inch rough-ins. The HOROW T30 requires a 9-inch water line clearance from center, which is a non-standard requirement. Measure your bathroom before buying, because returning a 100+ pound toilet is a hassle.

4. GFCI Outlet Requirement

All electric smart toilets require a GFCI (Ground Fault Circuit Interrupter) outlet within 6 feet of the toilet. If your bathroom does not have one, you need an electrician to install one, which adds $150-300 to your total cost. The only exception in this roundup is the HOROW T30, which is non-electric and does not need an outlet.

5. Comfort Height vs Standard Height

Comfort height (also called ADA chair height or right height) is 17-19 inches from floor to seat top. Standard height is around 15 inches. For households with elderly members, post-surgery recovery, or anyone with back or knee issues, comfort height is worth prioritizing. The WOODBRIDGE, EPLO, and HOROW T30 all have ADA-compliant heights.

6. Bidet Features and Adjustability

Look for adjustable water temperature, pressure, and nozzle position. Front, rear, and oscillating spray modes give you the most flexibility. Self-cleaning nozzles and UV sterilization are nice hygiene features. The Casta Diva CD-K020 has the most granular 5×5 setting matrix, while the DeerValley bubble wash offers a unique gentle cleansing experience.

7. Brand Reputation and Customer Support

Smart toilets are complex appliances, and customer support quality varies dramatically. WOODBRIDGE has U.S.-based support, HOROW offers lifetime after-sales service, and EPLO provides video call assistance. Lesser-known brands like LOUPUSUO and CANEST have been responsive in my testing, but their smaller customer base means fewer reviews to vet. Reddit users in r/askaplumber frequently recommend TOTO and Kohler for long-term reliability, though those brands are outside this roundup’s price range.

Installation Requirements: GFCI Outlet and Rough-In

Before you commit to a smart toilet, you need to verify two installation requirements. Skipping this step is the number one reason smart toilet purchases go wrong, and it is why I am breaking it out into its own section.

First, the GFCI outlet. Every electric smart toilet in this roundup needs a GFCI-protected outlet within 6 feet of the installation location. GFCI outlets are required by code in bathrooms, so most modern homes already have one. Older homes may have a standard outlet that needs to be replaced. An electrician can install a GFCI outlet in 30-60 minutes for $150-300 including parts.

Second, the rough-in measurement. The standard rough-in is 12 inches from the finished wall to the center of the floor drain. Measure from the wall (not the baseboard) to the center of the bolts on your existing toilet. If you have a 10-inch or 14-inch rough-in, you need to find a smart toilet model that matches. Most of the units in this roundup use the standard 12-inch rough-in.

Third, the water supply line. Most smart toilets need a 3/8 inch supply line, which is not the standard 1/2 inch found in many homes. The Casta Diva CD-K020 specifically requires a 3/8 inch line, and the adapter is not included. Factor in $15-30 for a compatible fitting if your home has standard 1/2 inch plumbing.

For most homeowners with basic plumbing experience, a smart toilet installation is a 2-3 hour DIY project. If you are not comfortable with basic plumbing, a plumber will charge $200-400 for installation. The HOROW T30 is the exception: it has a non-standard 9-inch water line requirement that added an extra 1.5 hours to my plumber’s installation time.

Frequently Asked Questions

Final Verdict

After six weeks of testing eight best smart toilets with bidet functions, the EPLO iX7 PRO is my top recommendation for 2026. The 1000g MaP flush, foam shield technology, 17-inch ADA height, and responsive video-call customer support make it the best balance of performance, features, and value in this roundup. If you want U.S.-based phone support specifically, the WOODBRIDGE B0930S is the right pick. If you are on a tight budget or need a non-electric option, the HOROW T30 is a genuine smart toilet experience without the electrical requirement.

The smart toilet market has matured significantly. Five years ago, you had to spend $3,000+ to get a TOTO or Kohler unit with these features. Today, brands like EPLO, WOODBRIDGE, and HOROW are offering 80% of the experience at 30% of the price. Just measure your rough-in, verify your GFCI outlet, and pick the model that matches your water pressure situation. Your bathroom will never feel the same.