The TOTO Neorest WX1 is the brand’s most design-forward integrated smart toilet — a true wall-hung unit where the tank disappears into the wall and every detail feels intentional.
I’ve dug into every spec, feature, and real-world consideration so you can decide whether this extraordinary bathroom showpiece is right for your home.
| Specification | Detail |
|---|---|
| Image |  |
| Model Number | CWT9538CEMFG#01 |
| Installation Type | Wall-Hung (In-Wall Tank) |
| Adjustable Height | 15″ – 19″ from floor (ADA compliant) |
| Water Use | 1.2 GPF / 0.8 GPF (Dual Flush) |
| Flush System | 3D TORNADO FLUSH® |
| Water Heating | Instantaneous (Unlimited Warm Water) |
| Wash Modes | Front, Rear, Soft Rear, Wide Front; Oscillating & Pulsating |
| Hygiene Tech | EWATER+®, PREMIST®, CEFIONTECT®, CLEAN RESIN® |
| Controls | Ergonomic Stick-Style Remote (Wall-Mountable) |
| Heated Seat | Yes — 82°F to 97°F (5 levels) |
| Warm Air Dryer | Yes — 95°F to 140°F (5 levels) |
| Night Light | Yes — illuminates bowl and beneath the toilet |
| User Presets | 4 programmable user memories |
| Auto Flush | Yes — Smart auto-detects small/large flush; manual backup |
| Auto Open/Close Lid | Yes — Touchless sensor-activated |
| Air Deodorizer | Yes — Auto-activates during use |
| Colors Available | Cotton White (#01), Matte Black (#MBL), Matte White (#MW) |
| Toilet Compatibility | Wall-Hung Only; requires in-wall tank frame (supports 880 lbs) |
| Warranty | 3-Year Limited (Residential) |
| Check Price |  |
Pros & Cons of TOTO Neorest WX1
| ✅ Pros | ❌ Cons |
|---|---|
| Stunning wall-hung design — tank hidden in-wall for a truly minimalist look | Requires professional installation and a full bathroom remodel or wall opening |
| Full suite of TOTO hygiene tech: EWATER+, PREMIST, CEFIONTECT, CLEAN RESIN | Significantly higher cost than floor-mounted Neorest models |
| Adjustable mounting height (15″–19″) — ADA compliant and accessible | Under-seat EWATER+ cleaning not included (available on AS and LS models) |
| Instantaneous water heating for unlimited warm water — never runs cold | Sold as multi-component system (bowl + top unit + in-wall tank sold together) |
| Smart auto-flush reads usage duration to select the right flush volume | Power cord is only 1.6 ft — electrical outlet must be positioned close in-wall |
| 4 user memory presets on the ergonomic stick-style remote | Not suitable for retrofitting into standard bathrooms without structural work |
| 3-year residential warranty — excellent coverage for a luxury product | ACTILIGHT® UV self-cleaning technology only available on the WX2 upgrade |
Check its current price on Amazon
Is the TOTO Neorest WX1 Worth It?
Yes — if you’re renovating a bathroom from scratch and want the most striking, space-efficient luxury toilet money can buy, the Neorest WX1 absolutely delivers on its promise.
It’s the only TOTO Neorest that completely hides its tank inside the wall, giving your bathroom that “floating toilet” look that makes guests do a double take.
That said, this is not a plug-and-play upgrade.
Unlike the floor-mounted Neorest AS or RS — which install like a conventional toilet — the WX1 demands a wall capable of supporting 880 lbs, a properly sized in-wall tank cavity, and a licensed contractor to put it all together.
If you’re doing a full bathroom build-out and want the absolute pinnacle of minimalist smart toilet design, the WX1 earns every penny of its premium.
If you just want TOTO Neorest technology without the structural complexity, the Neorest RS or Neorest AS are far easier paths to the same hygiene ecosystem.
Design & Build Quality
The WX1 is arguably TOTO’s most visually compelling product.
The ceramic bowl and integrated seat unit form a seamless, uninterrupted silhouette — no visible trapway, no exposed tank, no clutter at the base.
The skirted elongated bowl conceals all supply lines, and the wall-hung mount means you’re cleaning an entirely open floor underneath — something that sounds like a small detail until you’ve spent a year not wrestling a mop around a toilet base.
Three finish options are available: Cotton White, Matte Black, and Matte White — so you can coordinate with your bathroom hardware in a way that most integrated toilets simply don’t allow.
Compare that to the floor-mounted TOTO AP or EP wall-hung toilets, which pair a WASHLET seat with a DuoFit tank — the WX1’s fully integrated seat-and-bowl unit is a step beyond even those premium options aesthetically.
The in-wall tank unit (WT175MA) supports adjustable rim height from 15″ to 19″ — a rare and genuinely useful feature that makes the WX1 one of the most accessible luxury toilets you can spec into a renovation, particularly for households with mobility considerations or diverse users.
If accessibility is a priority for you, our guide to the best bidets for seniors explains why hands-free features like these matter so much for long-term comfort.
Cleaning Performance
TOTO has packed every major hygiene technology it makes into the WX1, and the results show.
Before you even sit down, PREMIST® coats the inside of the bowl with a fine mist of water, creating a surface that waste simply cannot grip.
After every use, EWATER+® — TOTO’s electrolyzed water system — automatically cleans the nozzle inside and out, sprays the bowl, and sanitizes underneath the seat rim, all without a drop of chemical cleaner.
CEFIONTECT® ceramic glaze on the bowl surface is fired at a molecular level during manufacturing, filling the microscopic pores in the ceramic that bacteria and residue would otherwise cling to.
CLEAN RESIN® coating on the wand and seat surface uses a silicone-based material that actively repels contamination between EWATER+ cycles.
The 3D TORNADO FLUSH® system uses three powerful nozzles in a hole-free rim to drive water in a cyclonic pattern around the entire bowl — 1.2 GPF for a full flush, 0.8 GPF for a lighter rinse.
The smart auto-flush sensor reads how long you’ve been seated and automatically selects the appropriate flush volume when you stand — no button required.
For a deeper look at how TOTO’s hygiene technology compares across seat models, the bidet toilet seat comparison chart is a useful reference point.
Comfort Features
Four bidet wash modes cover every user need: rear cleanse, soft rear cleanse, front cleanse, and wide front cleanse.
Both oscillating and pulsating spray patterns are available, and you can dial in spray position, water temperature (86°F to 104°F), and water pressure to exactly where you want them.
The instantaneous water heater means you get warm water from the very first second — there’s no tank to run out, no waiting through a cold burst at the start of a longer wash.
The heated seat runs from 82°F to 97°F with five levels of adjustment — a meaningful range whether you’re in a cold bathroom in January or just prefer a lighter warmth year-round.
The warm air dryer reaches up to 140°F at its highest setting, with a solid airflow volume that makes hands-free drying genuinely practical rather than just a theoretical feature.
The automatic lid opens as you approach and closes as you leave — touchless, quiet, and surprisingly satisfying every single time.
The night light illuminates both the inside of the bowl and the floor beneath the toilet, giving you gentle guidance during nighttime visits without jarring you awake with full bathroom lighting.
If you’re weighing this against a bidet seat on a standard toilet, these comfort features put it in an entirely different league.
Controls & Installation
The WX1 ships with an ergonomic stick-style remote with a wall-mount holder — clean, intuitive, and designed to stay accessible without looking like an afterthought on your bathroom wall.
Four user memory presets let every member of your household store their preferred settings — spray position, water temperature, seat warmth, and dryer level — so the toilet configures itself the moment you sit down.
Installation is the major caveat with this product and deserves honest treatment.
Unlike every other TOTO Neorest model, the WX1 cannot be installed like a conventional toilet.
You need to open the wall, install the WT175MA in-wall tank frame (which must be able to support 880 lbs), run copper pipe supply lines, and position a GFCI electrical outlet within 1.6 feet of the top unit’s power cord location.
The system ships in multiple pieces — bowl unit, top unit, and in-wall tank system — and TOTO strongly recommends using plywood with a minimum ½” thickness as backing in the wall panel.
This is a project for a licensed plumber and electrician, not a weekend DIY install.
If you want a wall-hung toilet without the WX1’s structural demands, the TOTO AP and EP wall-hung toilets use the DuoFit in-wall tank system with a separate WASHLET seat — a more accessible option that still delivers an excellent wall-hung look.
Who Is the TOTO Neorest WX1 Best For?
The WX1 is purpose-built for homeowners doing a complete bathroom renovation who want the most architecturally refined smart toilet available.
It’s ideal if you want the “floating toilet” aesthetic that simply isn’t achievable with any floor-mounted unit, and you’re prepared to plan your rough-in plumbing and electrical around its specific requirements.
It’s also an excellent choice for households with multiple users who want personalized settings — the four-user memory system is one of the most practical features on any smart toilet at this level.
For ADA-compliant installations or bathrooms serving users with limited mobility, the adjustable 15″–19″ mounting height is a genuine functional advantage over fixed-height floor-mounted units.
If you’re still deciding between a full integrated toilet and adding a premium seat to your existing toilet, the bidet toilet vs bidet seat guide lays out exactly what each path gives you.
And if the WX1 is beyond your current renovation scope, the best bidets for existing toilets guide covers excellent options that work with what you already have.
FAQ
Is the TOTO Neorest WX1 discontinued, and is there a successor?
No — the WX1 (CWT9538CEMFG#01) is a current, actively sold model in the TOTO Neorest lineup.
Its sibling upgrade is the Neorest WX2, which adds TOTO’s ACTILIGHT® UV clean-light technology in the lid for even more autonomous self-cleaning.
The WX1 remains the standard wall-hung option in the Neorest family; the WX2 is the step up for buyers who want UV sanitization as well.
Does the TOTO Neorest WX1 fit a round bowl toilet installation?
The WX1 is an elongated wall-hung unit — it is not a seat that attaches to an existing toilet.
Because it replaces your entire toilet (bowl, tank, and seat in one system), the concept of “round vs elongated toilet compatibility” doesn’t apply here.
What matters for installation is your wall structure, rough-in depth (12″), and access to a GFCI electrical outlet — not the shape of a pre-existing bowl.
What is EWATER+ and how does it keep the WX1 clean?
EWATER+® is TOTO’s proprietary electrolyzed water technology that uses an electrical charge to transform ordinary tap water into a mild, chemical-free sanitizing agent.
After every single use, the WX1 automatically sprays EWATER+ on the bidet wand (inside and out), on the toilet bowl surface, and underneath the seat rim — all without you doing anything.
This, combined with PREMIST misting the bowl before use and CEFIONTECT ceramic glaze on the porcelain, means the WX1 is genuinely one of the lowest-maintenance toilets you can own.
How does the TOTO Neorest WX1 compare to the Neorest AS?
Both are premium TOTO Neorest integrated toilets with similar hygiene technology, but they differ in two significant ways.
The WX1 is wall-hung with an in-wall tank, which delivers a more striking minimalist look and saves more floor space — but requires a full wall installation.
The Neorest AS is a floor-mounted unit that installs like a conventional toilet, making it far more accessible for most renovation projects.
The AS also includes under-seat EWATER+ cleaning (which the WX1 lacks) and is available in the Neorest RS, AS, and LS lineup that covers a wider range of budgets — all covered in the highest rated bidet toilet guide.
Conclusion
The TOTO Neorest WX1 is one of the most technically sophisticated and visually compelling toilets available anywhere in the world.
It combines TOTO’s full arsenal of hygiene technology — EWATER+, PREMIST, CEFIONTECT, CLEAN RESIN, 3D TORNADO FLUSH — inside a wall-hung form factor that no floor-mounted toilet can match aesthetically.
The honest trade-off is installation complexity: this is a product that belongs in a planned renovation, not a weekend upgrade.
If you’re building or fully renovating a bathroom and want the most design-forward smart toilet money can buy, the WX1 is a confident choice.
If you want Neorest-level hygiene without the structural commitment, explore the best toilets with bidet guide for floor-mounted alternatives, or check the bidet toilet seat comparison chart if adding a premium seat to your existing toilet is more realistic right now.