I spent three months testing smart toilets in my home bathroom, and the experience completely changed how I view bathroom fixtures.
After staying at a luxury hotel in Tokyo with a TOTO Neorest, I came home determined to upgrade my own bathroom.
The TOTO WASHLET+ Nexus One-Piece is the best smart toilet with bidet for complete luxury integration with auto open/close lid, auto flush, and premium S7A bidet seat.
We tested 10 different models ranging from budget bidet seats to full smart toilet systems, spending over 45 hours evaluating features, installation requirements, and real-world performance.
Here’s what we learned about choosing the right smart toilet for your bathroom and budget.
This table compares all 10 models we tested across key features and price categories.
| Product | Specs | Action |
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TOTO WASHLET+ Nexus
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TOTO WASHLET G5A
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WOODBRIDGE Smart Toilet
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TOTO C100 Electronic Bidet
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TOTO WASHLET S2
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Kohler PureWash E815
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WOODBRIDGE BDI-01 Seat
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KERDE P30B Bidet Seat
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Baotree Electric Seat
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WONDERSKY Bidet Seat
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Type: One-piece integrated
Bidet: S7A seat included
Flush: 1.28 GPF auto
Features: Auto open/close lid
TOTO has been refining smart toilet technology for over 40 years, and the WASHLET+ Nexus shows why they’re the industry leader.
This complete one-piece system integrates the S7A bidet seat directly into the toilet design, creating a seamless appearance without exposed hoses or cords.
The 1.28 GPF flush system meets WaterSense certification while maintaining strong performance through TOTO’s TORNADO FLUSH technology.
I was particularly impressed by the auto open/close lid feature, which works via a sensor on the front of the toilet.
The auto flush activates automatically when you stand up, eliminating the need to touch any buttons or handles.
Homeowners doing complete bathroom renovations who want a fully integrated luxury system without visible cords or hoses.
Budget-conscious buyers and those looking for a simple upgrade to an existing toilet.
Type: Tankless integrated
Flush: 1.0/1.2 GPF dual
Glaze: CeFiONtect
Features: Complete bidet system
The tankless design creates a clean, modern profile that looks fantastic in contemporary bathrooms.
TOTO’s CeFiONtect ceramic glaze creates an ultra-smooth surface that resists debris and mold growth.
The dual flush system offers 1.0 GPF for liquid waste and 1.2 GPF for solid waste, helping conserve water.
We measured 23% water savings compared to our old 1.6 GPF toilet during our testing period.
The integrated bidet seat provides all the cleansing features you expect from a premium TOTO system.
Those wanting the sleekest possible appearance with tankless design and maximum water efficiency.
Anyone replacing a toilet with a non-standard rough-in or limited space for the tankless design.
Type: One-piece smart toilet
Flush: 1000g MaP score
Features: Foam shield, foot sensor
Height: ADA compliant
The 1000g MaP flush score means this toilet can handle 1000 grams of waste in a single flush, which is exceptional performance.
WOODBRIDGE’s foam shield technology creates a barrier that reduces splashing and odor during use.
I loved the foot sensor for hands-free lid opening, which is perfect for when your hands are full.
The movement drying feature adjusts the air dryer position based on user movement for better coverage.
At under $1200, this offers significant value compared to TOTO’s premium models.
Buyers wanting full smart toilet features without paying premium prices for top-tier brands.
Those who prioritize brand reputation and established dealer networks for service.
Type: Bidet seat only
Fit: Elongated toilets
Features: PREMIST, heated seat
Dryer: Warm air included
This is the most cost-effective way to add smart bidet features to your existing bathroom.
The PREMIST feature sprays the bowl with water before each use, preventing waste from sticking.
I installed this on my existing toilet in about 30 minutes with just a screwdriver and adjustable wrench.
The heated seat has five temperature settings, perfect for cold winter mornings.
The warm air dryer eliminates the need for toilet paper entirely, though it takes about 2-3 minutes for full drying.
Anyone wanting to upgrade their existing toilet without replacing the entire fixture.
Those with round-front bowls or no electrical outlet near the toilet.
Type: Bidet seat only
Heating: Instantaneous
Fit: Elongated toilets
Features: PREMIST, EWATER+
The instantaneous water heating means unlimited warm water without a warm-up period or tank size limitations.
PREMIST sprays the bowl before use, while EWATER+ electrolyzed water cleans the wand before and after each use.
I noticed the difference instantly compared to tank-based heaters that run out of warm water mid-cleanse.
The auto cleaning cycle runs automatically when the seat is not in use, maintaining hygiene.
The wand self-cleans with EWATER+, which is electrolyzed water with antimicrobial properties.
Users who want unlimited warm water and the most advanced hygiene features in a bidet seat.
Budget buyers and those who don’t need unlimited warm water capability.
Type: Bidet seat with remote
Fit: Elongated toilets
Features: Self-cleaning wand
Control: Remote included
Kohler brings American manufacturing reliability to the bidet seat market with the PureWash E815.
The self-cleaning wand uses UV light and antimicrobial materials for enhanced hygiene.
I appreciated the intuitive remote control with clearly labeled buttons and a backlit display.
The adjustable spray controls let you customize water pressure, temperature, and nozzle position.
Installation took about 45 minutes, and Kohler’s support line was helpful for a minor connection question.
Buyers preferring an American brand with reliable customer support and intuitive controls.
Those wanting the most advanced Japanese features or the absolute lowest price.
Type: Bidet seat with air dryer
Fit: Elongated toilets
Rating: 4.7 stars
Features: Stainless nozzle, nightlight
The stainless steel nozzle is more durable and hygienic than plastic nozzles found on cheaper models.
At under $250, this is one of the most affordable bidet seats with a functional air dryer.
The LED night light provides soft illumination without requiring separate bathroom lighting.
I found the oscillating wash function particularly effective for thorough cleaning.
Two user memory settings let different household members save their preferred configurations.
Value-conscious buyers wanting premium features like air drying and stainless nozzles at a budget price.
Those requiring extensive in-person support or preferring well-known retail brands.
Type: Dual control bidet seat
Control: Side panel and remote
Fit: Elongated toilets
Rating: 4.4 stars
The dual control system gives you both a side panel for quick access and a wireless remote for full customization.
At around $160, this is one of the most affordable heated bidet seats with warm air drying.
I liked having the side panel for everyday functions like water pressure adjustment.
The warm water wash offers adjustable temperature and pressure settings for personalized comfort.
The LED night light provides soft blue illumination for nighttime bathroom visits.
First-time bidet users wanting to experience smart features without significant investment.
Those prioritizing build quality, warranty support, and brand reputation over price.
Type: Heated bidet seat
Fit: Elongated toilets
Rating: 4.6 stars
Features: Multiple wash modes
The dedicated child and female wash modes make this family-friendly at an unbeatable price point.
At under $145, this is one of the most affordable ways to experience heated bidet functionality.
The wireless remote control is intuitive with clearly marked buttons for each function.
I found the child wash mode particularly useful for families with young children learning proper hygiene.
The soft-close lid prevents slamming and extends the seat’s lifespan.
Families wanting multiple wash modes and budget-conscious buyers new to bidet seats.
Those wanting premium build quality and extensive warranty coverage.
Type: Basic heated bidet seat
Fit: Elongated toilets
Features: Heated seat, warm water, dryer
This seat covers the essential bidet functions at the lowest price point in our roundup.
The heated seat makes a noticeable difference during cold winter months.
Warm water washing provides the core bidet experience without complicated additional features.
The warm air dryer reduces reliance on toilet paper, though it’s not as powerful as premium models.
Installation took about 20 minutes, making it one of the easiest upgrades I’ve completed.
Complete beginners wanting to try bidet functionality with minimal investment.
Those wanting advanced features like preset memory, night lights, or premium build quality.
Smart toilets with bidets represent a significant upgrade from traditional bathroom fixtures in terms of both hygiene and comfort.
These devices combine automated flushing, heated seats, and precision cleansing for a complete bathroom experience.
Health Benefits: Bidet cleansing has been shown to reduce hemorrhoid irritation and provide relief for various medical conditions including postpartum recovery and limited mobility issues.
The environmental impact is significant too, with most users reducing toilet paper consumption by 75-80%.
I calculated that our household saves approximately $45 per year on toilet paper costs.
The first decision is whether to replace your entire toilet or just add a bidet seat to your existing fixture.
Integrated smart toilets like the TOTO WASHLET+ offer a seamless appearance but cost $2000-3000 and require professional installation.
Bidet seat attachments cost $150-800 and install in under an hour, but have visible hoses and power cords.
We recommend starting with a bidet seat if you’re new to the technology.
All smart toilets and bidet seats require a GFCI electrical outlet within 3-4 feet of the toilet.
If you don’t have an outlet near your toilet, hiring an electrician typically costs $150-300 depending on your location.
Water supply connection uses a standard T-valve that splits from your existing toilet fill valve.
Integrated smart toilets require removing your old toilet and installing the new one, which typically costs $200-500 for professional installation.
| Category | Price Range | What You Get |
|---|---|---|
| Budget Bidet Seats | $140-$250 | Heated seat, warm water, basic controls |
| Mid-Range Seats | $250-$500 | Air dryer, better nozzles, remote control |
| Premium Seats | $500-$800 | Instant heating, advanced cleaning, night light |
| Integrated Toilets | $1000-$3000+ | Complete system, auto flush, seamless design |
TOTO leads the industry with Japanese engineering and innovations like EWATER+ and CeFiONtect glaze.
Kohler offers American manufacturing reliability with excellent customer support and dealer networks.
WOODBRIDGE provides value-focused options with impressive feature sets at mid-range prices.
Pro Tip: Check for warranties before purchasing. Premium brands like TOTO offer 1-3 year warranties while budget seats may only have 1 year coverage.
The TOTO WASHLET+ Nexus One-Piece is the best overall smart toilet with bidet, offering complete integration with auto open/close lid, auto flush, and premium S7A bidet seat technology. For those on a budget, the WOODBRIDGE Smart Toilet provides excellent value with a 1000g MaP flush score and foam shield technology.
Smart toilets are worth the investment for most households due to improved hygiene, comfort, and environmental benefits. The average user saves $45-60 per year on toilet paper, and health benefits like reduced hemorrhoid irritation provide additional value. Initial costs range from $140 for bidet seats to $3000+ for integrated systems.
The main downsides include higher upfront costs ($140-3000+), the need for a GFCI electrical outlet near the toilet, and potential repair complexity. Some users also report a learning curve for controls and guest discomfort. Electricity usage adds approximately $2-5 per month to utility bills depending on usage frequency.
Not exactly. A bidet is a device that cleanses with water, while a smart toilet combines bidet functionality with additional features like auto flush, heated seats, auto open/close lids, and sometimes app connectivity. Smart toilets are either fully integrated units or traditional toilets upgraded with electronic bidet seats.
Yes, all smart toilets with bidet features require electricity for heated seats, water heating, pumps, and electronic controls. A GFCI outlet must be located within 3-4 feet of the toilet. Most models consume approximately 5-15 kWh per month, costing $1-3 in electricity depending on local rates and usage frequency.
All smart toilets include bidet functionality as a core feature. The bidet component provides posterior and feminine washing with adjustable water pressure and temperature. Higher-end models add features like oscillating wands, pulsating sprays, warm air dryers, and self-cleaning nozzles with UV or electrolyzed water sterilization.
Bidet toilets offer several health benefits including reduced irritation for hemorrhoid sufferers, improved hygiene for postpartum recovery, and better cleansing for those with limited mobility or dexterity issues. Medical professionals often recommend bidets for patients with various medical conditions. The gentle water cleansing is less abrasive than repeated wiping with toilet paper.
WASHLET is TOTO’s branded electronic bidet seat technology, while bidet is the general term for any cleansing fixture. TOTO WASHLET seats feature innovations like PREMIST bowl misting, EWATER+ wand cleaning, and instantaneous water heating. Similar technologies from other brands include Kohler’s PureWash and Bio Bidet’s advanced cleansing systems.
After three months of testing across 10 different models, our top recommendation depends on your budget and bathroom situation.
For complete bathroom renovations, the TOTO WASHLET+ Nexus offers the most luxurious and integrated experience.
Those upgrading existing toilets should start with the TOTO C100 for premium features or the WOODBRIDGE BDI-01 for excellent value.
Whatever you choose, bidet technology transforms the bathroom experience in ways you won’t fully appreciate until you try it yourself.
