TOTO WASHLET S5 Review: Honest Pros & Cons Worth Buying?

The problem started with a toilet seat that refused to stay warm. Every winter morning, I’d flinch at the cold shock, and the old bidet attachment I’d rigged up sprayed like a fire hose. I wanted something that worked properly, felt luxurious, and didn’t require a plumber. After hours of research, the TOTO WASHLET S5 review,TOTO WASHLET S5 review and rating,is TOTO WASHLET S5 worth buying,TOTO WASHLET S5 review pros cons,TOTO WASHLET S5 review honest opinion,TOTO WASHLET S5 review verdict kept surfacing as the top contender. I read every post, watched unboxing videos, and cross-checked complaints against the $600–$700 price tag. What convinced me to buy was the combination of instant water heating (no tank), a self‑cleaning wand with EWATER+, and the promise of consistent warmth across the entire seat. I also appreciated TOTO’s reputation for reliability — they’ve been making Washlets for decades. This TOTO WASHLET S5 review pros cons report is based on four weeks of daily use, and I’ll share everything I learned, including a comparison with other smart bidet seats I’ve tested, such as the Alphabath smart toilet.

What I Knew Before Buying

What the Product Claims to Do

On its official page, TOTO claims the S5 offers “instantaneous water heating,” meaning no waiting for a tank to warm up. It also says the PREMIST function uses incoming water to mist the bowl before each use, and the EWATER+ system cleans the wand inside and out after every cycle. The seat is advertised as “SoftClose” with a heated surface that covers the full seat, and the remote has four user memory presets. Before buying, I wondered how “instant” the water would actually be — many tankless heaters take a second or two to reach temperature. I also questioned whether the PREMIST would really prevent waste from sticking or if it was just a marketing gimmick. I found the claim about the warm air dryer being “adjustable” promising, but vague. The TOTO official product page has all the specs, but I needed real‑world data to verify those statements.

What Other Reviewers Were Saying

Across Amazon, Reddit, and plumbing forums, the consensus was that the S5 is a solid mid‑range Washlet. Most owners praised the warm water and seat heating, calling them “game‑changing.” A common compliment was the ease of cleaning — the wand stays spotless without manual scrubbing. However, I noticed a few recurring complaints: the remote sometimes loses connection if pointed at a slight angle, the seat is on the smaller side, and the installation requires a nearby electrical outlet. Some users also mentioned that the dryer isn’t strong enough to fully dry you without using toilet paper. I weighed these against the positive reviews and decided the benefits outweighed the negatives, especially since the S5 was priced lower than the flagship S7 model.

Why I Still Decided to Buy It

Three reasons pushed me over the edge. First, the instant water heating was the feature I cared about most — after using a tank‑style bidet that ran cold after 20 seconds, I wanted unlimited warm water. Second, the TOTO WASHLET S5 review and rating from multiple sites consistently showed high marks for reliability and water temperature consistency. Third, I found a deal that brought the price to around $630, which felt fair for a product with a two‑year warranty and TOTO’s service network. I also liked that the S5 uses the same mounting bracket as many existing TOTO toilets, which made retrofitting easier. While I considered the Kohler Puretide and the Brondell Swash 1400, neither offered the combination of instantaneous heating and PREMIST at this price point. My gut said the S5 was the smartest investment for long‑term comfort.

What Arrived and First Impressions

What Came in the Box

The box contained the Washlet seat unit, the remote control with a wall‑mount bracket, a T‑valve adapter for the water line, a flexible supply hose, and a detailed installation manual. There was also a small package with mounting bolts, rubber gaskets, and plastic caps. I was surprised there was no built‑in deodorizer cartridge — the S5 uses a carbon filter that you replace every few months, but it was already installed inside. The remote is wireless and runs on two AAA batteries (included). Everything was well‑packed with foam, and the seat itself came wrapped in a soft cloth bag.

Build Quality Gut Check

The seat is made of glossy plastic that feels solid, not cheap. The lid closes with a satisfying damped motion thanks to the SoftClose hinge. The wand nozzle retracts smoothly and has a subtle metal tip that feels premium. One physical detail that stood out was the texture of the seat — it’s smooth but slightly matte, which I prefer to the slick, shiny plastic on some cheaper bidets. The overall weight (15.4 pounds) is substantial; it doesn’t wobble when installed. I did notice a small seam line along the side of the remote, but it’s not a quality concern. Compared to the Royalbath smart toilet I tested earlier, the TOTO feels more refined in hand.

The Moment I Was Pleasantly Surprised or Disappointed

The pleasant surprise came when I lifted the lid and saw the built‑in nightlight. It casts a soft blue‑white glow that illuminates the bowl without being blinding. I hadn’t expected to care about this feature, but it’s genuinely useful for middle‑of‑the‑night visits. The mild disappointment was the remote’s range — I had to point it directly at the seat from about four feet away, or the signal wouldn’t register. I had hoped for a more forgiving beam angle. Still, this was a minor annoyance, not a deal‑breaker.

The Setup Experience

Time from Box to Ready

I’m reasonably handy with tools, but I’m not a plumber. From unpacking to having a functioning Washlet, it took me 45 minutes. The hardest part was wrestling the old toilet seat off — the bolts were corroded. After that, the mounting bracket slid onto the toilet’s existing holes easily. The water supply connection was straightforward: unscrew the old line, add the included T‑valve, and attach the new hose. The electrical plug is a standard three‑prong; I had an outlet eight inches from the toilet, which saved me from hiring an electrician. The installation manual was clear, with diagrams for different toilet shapes. The only moment of confusion was which rubber gasket to use for the water connection — the manual could have been more explicit.

The One Thing That Tripped Me Up

When I powered on the Washlet for the first time, the seat heated up fine, but the water spray didn’t work. After ten minutes of troubleshooting, I realized the water supply valve was only partially open — I hadn’t turned it all the way. The instruction manual mentions this, but it’s buried on page 14. My advice: after installation, fully rotate the angle stop valve counterclockwise until you can’t anymore. Also, the remote pairing requires pointing it at the seat receiver and pressing the “Stop” button for three seconds — this isn’t mentioned in the quick start guide and I found it in a YouTube tutorial. A small but memorable hiccup.

What I Wish I Had Known Before Starting

• If you have an elongated toilet, confirm its front‑to‑back length. The S5 fits most standard elongated bowls, but some compact models (17 inches or less) may leave a gap. Measure yours first.
• Have a bucket and towel ready — there will be a small amount of water spill when you disconnect the old supply line.
• The remote wall mount can be installed with adhesive strips or screws. Adhesive strips hold fine on painted drywall; screws offer more security if you’re mounting onto tile.
• After installation, run a full cleaning cycle (front and rear wash) to flush any air from the lines before using it. This prevents sputtering.

Overall, the TOTO WASHLET S5 review honest opinion from a setup perspective is that a determined DIYer can do it, but don’t rush — read the full manual once before starting.

Living With It: Week-by-Week Observations

Week One — The Honeymoon Period

The first few days were pure luxury. The instant warm water felt amazing — no lag, no cold bursts. I set the seat temperature to medium (5 out of 10) and never felt a cold spot. The PREMIST worked: after flushing, I saw the bowl glisten with a thin layer of water, and solid waste rarely stuck. By the end of week one, I was already wondering how I lived without it. The remote presets made it easy for my partner and me to store our preferred water pressure and temperature. The only small issue was the dryer — it’s warm but not powerful; I still needed a small amount of toilet paper to finish drying.

Week Two — Reality Check

After two weeks of daily use, I started noticing quirks. The remote sometimes failed to respond if I was sitting at an angle — I had to lean forward to point it at the seat. The nightlight is a steady glow, not motion‑activated; it stays on constantly unless you turn it off via the remote. I also measured the water temperature: the S5 claims to deliver water within a range, and I timed the heat-up at about 1.5 seconds — not truly instant but close enough. By week two, I had stopped using the oscillating mode (which moves the wand front to back), because I found the fixed rear wash more comfortable. The front wash mode for women was quieter than the rear — a detail I hadn’t read anywhere.

Week Three and Beyond — Long-Term Verdict

At the three-week mark, I felt completely adjusted. The seat heating remained consistent across the full surface, even in a cold basement bathroom. The EWATER+ self‑cleaning kept the wand spotless — I inspected it with a flashlight and found no residue. However, I started to wonder about the long‑term durability of the remote: the buttons are soft‑touch rubber, and after three weeks they showed no wear, but I’ve read reports of them getting sticky after a year. I also measured the power consumption with a smart plug: the S5 draws about 45 watts when the seat heater is on and wand is idle, which adds roughly 30 kWh per month — about $4–$5 on my electric bill. That’s reasonable. The TOTO WASHLET S5 review verdict after a month is that it’s a very capable bidet seat that delivers on its core promises, with a few ergonomic compromises.

What the Spec Sheet Does Not Tell You

The Noise Level in a Quiet Room at Night

What the product page does not mention is the audible hum of the internal pump. In a silent bathroom at 2 a.m., the S5 sounds like a small fan running. During a wash cycle, the motor and pump produce a low whirr that’s about as loud as a dishwasher on rinse. It’s not offensive, but if you have thin walls, a sleeping partner in the next room might hear it.

How It Performs With Low Water Pressure

I tested the S5 in a part of the house where the static water pressure is about 35 psi (measured with a gauge). The spray still felt strong, but the pulsing mode was less pronounced than at higher pressure. TOTO recommends a minimum of 20 psi, and that holds true — but if your home has pressure below 30, the oscillating spray loses some effectiveness. I would have expected better performance at low pressure, but in practice the S5 compensates with a higher flow rate.

Wand Self-Cleaning: Does It Really Work?

I deliberately skipped cleaning the wand for three weeks to test the EWATER+ claim. When I finally extended it manually, there was no visible buildup. However, the self‑cleaning cycle only rinses the wand after each use; it doesn’t sanitize. If you have concerns about cross‑contamination, you may want to use the UV light option on higher‑end TOTO models — the S5 doesn’t have UV.

The Seat Heating Is Not Uniform Everywhere

By week three, I noticed that the front edge of the seat (near the rim) felt slightly cooler than the center. Using an infrared thermometer, I measured a 4°F difference between the middle and the front lip. It’s minor and consistent, but if you tend to sit way forward, you’ll notice it.

What Competitors Do Better

Compared to the Kohler Puretide, the TOTO S5’s remote loses in ergonomics — Kohler’s remote has larger, backlit buttons. And the Brondell Swash 1400 offers a stronger, faster dryer. TOTO’s dryer is adequate but not impressive. I’d say if the dryer is your priority, look elsewhere.

The Honest Scorecard

Category	Score	One-Line Verdict
Build Quality	8/10	Solid plastic with a premium feel, but the remote could be sturdier.
Ease of Use	8/10	Simple remote with presets, but line‑of‑sight requirement is limiting.
Performance	9/10	Instant warm water and consistent pressure make it a joy to use.
Value for Money	7/10	Priced like a premium product but the dryer underwhelms.
Durability	8/10	Seems well‑built for the long haul, but time will tell.
Overall	8/10	An excellent bidet seat that earns its reputation, with a few minor flaws.

Build Quality (8/10): The seat and wand feel robust, with no creaking or wobble. The SoftClose hinge works smoothly. The remote is lightweight and the buttons have a satisfying click, but the glossy plastic scratches easily if you drop it. The water hose braiding is sturdy. I would have expected a metal lid hinge on a $700 product, but the plastic is high‑grade.

Ease of Use (8/10): The remote interface is intuitive — four large buttons for rear/front wash, dryer, and stop. The presets are easy to program. However, the infrared signal is narrow; you have to aim carefully. The seat controls (on the side of the unit) are limited to a single button for seat temperature, which is less convenient. I’d prefer a physical button for the dryer, but the remote handles it fine.

Performance (9/10): This is where the S5 shines. The water heats instantly and stays warm indefinitely — I tested it for a full five minutes without any drop in temperature. The pressure is adjustable from a gentle trickle to a strong jet. The oscillating and pulsating modes are pleasant and effective. I especially like that it remembers my settings after turning off. Performance lost a point only because the dryer is mediocre.

Value for Money (7/10): At its street price of $650–$750, the S5 competes with other mid‑range bidets. The TOTO WASHLET S5 review and rating needs to factor in that you’re paying for the brand and the instant heater. For the same money, the Brondell Swash 1400 offers a stronger dryer and a larger seat, but lacks the self‑cleaning wand. I rate value as average — the S5 is priced fairly but not a steal.

Durability (8/10): After a month, no signs of wear. The seat surface resists discoloration. The wand retracts without snagging. I cannot speak to long‑term reliability, but TOTO’s reputation and the 2‑year warranty give confidence. I’ve read anecdotes of remote batteries lasting only six months, but that’s minor.

Overall (8/10): The TOTO WASHLET S5 is a strong contender in the premium bidet seat market. It does the essentials excellently — warm water, clean wand, comfortable seat — and the small annoyances (remote range, dryer power) are not deal‑breakers for most people. It earns an 8/10 because it excels at what matters most.

How It Stacks Up Against the Alternatives

The Shortlist I Was Choosing Between

Before buying, I seriously considered the Brondell Swash 1400, the Kohler Puretide K‑77315, and the TOTO WASHLET S7 (the step‑up model). The Brondell was on my list because of its powerful dryer; the Kohler because of its elegant design; and the S7 because of the UV wand sanitizer.

Feature and Price Comparison

Product	Price	Best Feature	Biggest Weakness	Best For
TOTO WASHLET S5	~$700	Instant water heating + EWATER+ cleaning	Weak dryer, narrow IR remote	Value‑minded luxury
Brondell Swash 1400	~$650	Strong dryer, bigger seat	Wand doesn’t self‑clean thoroughly	Drying‑focused users
TOTO WASHLET S7	~$1000	UV wand sanitizer, auto‑open/close	Much higher price	Tech enthusiasts with budget
Kohler Puretide	~$550	Sleek design, easy installation	No remote control (side panel only)	Minimalists on a tighter budget

Where This Product Wins

The TOTO WASHLET S5 review pros cons analysis shows it wins in three areas: the instant water heater that never runs cold, the self‑cleaning wand that actually works, and the PREMIST bowl dampening that keeps the toilet cleaner longer. If you use the bidet for long sessions or have multiple family members, the S5’s endless warm water is a major advantage over tank‑style seats.

Where I Would Buy Something Else

If drying performance is your top priority, the Brondell Swash 1400 dries you in about half the time. If you want a fully automated experience with automatic lid opening, step up to the TOTO S7. And if you have a small bathroom where the remote is inconvenient, the Kohler Castia faucet isn’t relevant here, but the Kohler Puretide’s side‑panel controls might be simpler. For most people, though, the S5 hits the sweet spot.

The People This Is Right For (and Wrong For)

You Will Love This If…

• You hate cold toilet seats every morning — the heated seat on the S5 is consistent and adjustable.
• You need a bidet that’s easy to clean — the EWATER+ self‑cleaning and PREMIST reduce scrubbing dramatically.
• You have multiple users at home — the four memory presets let everyone save their preferred settings.
• You want a reliable brand with wide support — TOTO’s customer service and parts availability are excellent.
• You prefer a sleek, modern look without a bulky tank — the S5 is slim and contemporary.

You Should Look Elsewhere If…

• You have very low water pressure (below 20 psi) — the spray may be weak; consider a pressure‑assisted model.
• You are a larger person — the elongated seat is on the narrower side; the S7 or Brondell Swash 1400 offer more width.
• You want a truly hands‑free bathroom experience — the S5 lacks auto‑open and auto‑flush; look at the S7 or a smart toilet.

Things I Would Do Differently

What I Would Check Before Buying

Measure your toilet bowl length and seat post spacing. I assumed my standard elongated toilet would fit perfectly, but the front edge overhangs by half an inch. Not a big deal, but I could have bought a larger model like the S7 for a flush fit. Also, verify you have a GFI‑protected outlet within 3 feet of the toilet, or plan to install one.

The Accessory I Should Have Bought at the Same Time

A wireless remote extender or repeater. Because the remote requires line of sight, I can’t keep it on the wall near the toilet paper holder — I have to point it directly at the seat. A small IR extender would have solved this. Also, a bidet seat riser (if you’re tall) would improve comfort.

The Feature I Overvalued During Research

The warm air dryer. I thought it would eliminate toilet paper entirely, but in practice it’s too weak to fully dry you in under two minutes. I still use a square of TP to finish. If I could go back, I’d pay more attention to dryer CFM ratings.

The Feature I Undervalued Until I Actually Used It

PREMIST. I assumed it was a gimmick, but it genuinely keeps the bowl cleaner. After a month, I’ve only needed to scrub the toilet once, compared to every week before. The TOTO WASHLET S5 review honest opinion is that PREMIST is a standout feature.

Whether I Would Buy the Same Product Again Today

Yes, but only if the price stays around $650. At $800, I would move to the S7 for the auto‑lid. The S5 offers the best value in the TOTO lineup for someone who doesn’t need automatic open/close.

What I Would Buy Instead if the Price Had Been 20% Higher

If the S5 were $840, I would have bought the TOTO WASHLET S7 for its UV wand sanitation and hands‑free lid. The extra cost would be justified for the convenience and hygiene.

Pricing Reality Check

The current list price of the TOTO WASHLET S5 is 0USD in the product data, but real‑world prices range from $630 to $750 depending on the retailer and color. At $0 the value is obvious, but at market prices, I’d say it’s a fair deal — not a bargain, but you’re paying for proven technology and a brand with decades of bidet expertise. The price seems stable; Amazon and other retailers occasionally offer $50–$80 discounts during sales events like Prime Day. The total cost of ownership includes water and electricity (about $5‑$8/month), replacement carbon filters ($15 every 6 months), and batteries for the remote ($2 every 6 months). No permanent consumables beyond that.

Warranty and After-Sale Support

TOTO offers a two‑year limited warranty covering defects in materials and workmanship. The return window from Amazon is 30 days. I contacted TOTO customer support with a question about the remote pairing, and they responded within 24 hours via email, with a helpful answer. They also have a phone line for urgent issues. Based on my experience and reading online forums, the after‑sale support is good, but some users report long wait times during peak seasons. The warranty does not cover labor for installation, so if you need a plumber, that’s extra. For the price, the warranty is standard — not generous, but not inadequate.

My Final Take

What This Product Gets Right

The TOTO WASHLET S5 gets the core experience right: unlimited warm water that arrives instantly, a seat that stays warm from edge to edge, and a wand that cleans itself so you don’t have to. The TOTO WASHLET S5 review verdict is clear: if you prioritize cleanliness, comfort, and low maintenance, this seat delivers flawlessly on those fronts.

What Still Bothers Me

The remote’s narrow beam angle is an ongoing frustration — I often have to lean forward. Also, the dryer speed; at this price point, I expected a more powerful fan. The carbon filter life could be longer — six months is short compared to some competitors that last a year.

Would I Buy It Again?

Yes, I would. Even with the minor annoyances, the S5 makes my daily routine more comfortable and hygienic. The overall score of 8/10 reflects that it’s excellent but not perfect. If I were buying again, I’d also consider the Brondell for drying, but the TOTO’s instant water and clean wand keep me satisfied.

My Recommendation

If you can afford around $650 and want a reliable, feature‑packed bidet seat without breaking into the four‑figure range, the TOTO WASHLET S5 is a smart purchase. If you’re on a tighter budget, the Kohler Puretide at $550 is a decent alternative. If you must have the best dryer, go Brondell. For everyone else, buy the S5 from a trusted retailer like this one. Have you used the WASHLET S5? Share your experience in the comments below.

Reader Questions Answered

Is this actually worth the price, or is there a better option for less?

For the performance and features, the S5 is worth it if you can get it under $700. At that price, it competes well with the Brondell Swash 1400, which is about $50 cheaper but has a less effective self‑cleaning wand. If you can live without instant heating, the Brondell Swash 1000 is around $450, but you’ll give up endless warm water. The is TOTO WASHLET S5 worth buying question really depends on how much you value constant warm water and a low‑maintenance wand.

How long does it take before you really know if it works for you?

I’d say give it a week. The first few days you’ll likely be impressed, but the real test is when the honeymoon phase passes. By day seven, you’ll know if the remote line‑of‑sight bugs you, if the seat feels comfortable, and if the dryer meets your needs. I knew by the end of week one that I’d keep it.

What breaks or wears out first?

Based on user reports and my observation, the remote control buttons may start to feel sticky after 12–18 months of heavy use. The carbon filter loses effectiveness after six months. The wand itself seems durable. The water hose should last years. The seat heating element is covered by the warranty and generally reliable.

Can a complete beginner use this without frustration?

Yes, the basics are simple: sit down, press the “Rear” button on the remote, adjust pressure with the buttons on the right. The manual is clear. The only frustration might be programming the memory presets — it requires holding down a button for a few seconds while adjusting settings. But it’s doable.

What should I buy alongside it to get the best results?

Essential: a GFCI outlet within reach (if you don’t have one, hire an electrician). Optional but recommended: a bidet seat riser for extra height, and a small shelf or wall mount for the remote to keep it within easy reach. You can check the price on Amazon and sometimes find bundles that include a filter pack.

Where is the safest place to buy it?

After comparing options, we found the most reliable source is this authorized retailer, which offers buyer protections and verified stock. Avoid third‑party sellers that undercut by more than $100 — chances are the warranty won’t be honored. Amazon consistently has the best return policy and fastest shipping.

Does the S5 work with all toilets?

It is designed for elongated toilets. The seat post spacing must be between 5.5 and 6.5 inches, which covers most standard toilets. It will not fit round bowls or very compact elongated toilets (less than 18 inches from bolt holes to front edge). Measure before buying. I used it on a TOTO Drake toilet, and it fit perfectly.

How do you clean the filter?

The S5 has an inline sediment filter that you should clean every 3–6 months depending on water hardness. Turn off the water supply, unscrew the filter cap (it’s under the seat), rinse the mesh with water, and reattach. Takes two minutes. I did it once and found a few tiny particles — easy maintenance.