If you’re deciding between the TOTO Neorest WX1 and WX2 wall-hung smart toilets, one feature separates them — and it’s worth every penny for the right buyer.
In this comparison, you’ll get a full breakdown of both models so you can make the most informed decision for your bathroom.
| Feature | TOTO Neorest WX1 | TOTO Neorest WX2 |
|---|---|---|
| Image |  |
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| Model Number | CWT9538CEMFG#01 | CWT9548CEMFX#01 |
| Flush System | 3D TORNADO FLUSH® — 1.2 / 0.8 GPF | 3D TORNADO FLUSH® — 1.2 / 0.8 GPF |
| Self-Cleaning Tech | EWATER+®, PREMIST®, CEFIONTECT® | EWATER+®, PREMIST®, CEFIONTECT®, ACTILIGHT® |
| ACTILIGHT® UV Cleaning | ❌ No | ✅ Yes |
| Water Heating | Instantaneous (unlimited warm water) | Instantaneous (unlimited warm water) |
| Wash Modes | Front, Rear, Soft Rear, Wide Front + Oscillating/Pulsating | Front, Rear, Soft Rear, Wide Front + Oscillating/Pulsating |
| Mounting Height (Adjustable) | 15″ – 19″ from floor | 15″ – 19″ from floor |
| User Presets | 4 | 4 |
| Colors Available | Cotton White, Matte Black (MTO), Matte White (MTO) | Cotton White |
| Buy Now |  |
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1. TOTO Neorest WX1 (CWT9538CEMFG#01)
The TOTO Neorest WX1 is a wall-hung integrated smart toilet that represents TOTO’s most advanced thinking in space-saving bathroom design.
It replaces the discontinued Neorest EW and carries forward every hallmark technology TOTO has developed — minus the ACTILIGHT UV system, which you’ll find exclusively on the WX2.
Features
- 3D TORNADO FLUSH® with 1.2 GPF / 0.8 GPF dual auto flush and manual backup
- EWATER+® mists the wand, bowl, and under-seat after every use with electrolyzed water
- PREMIST® pre-wets the bowl before each use to prevent waste adhesion
- CEFIONTECT® ultra-smooth ceramic glaze minimizes buildup on the bowl surface
- Instantaneous water heater — unlimited warm wash water from the first second
- Four wash modes (rear, soft rear, front, wide front) with oscillating and pulsating options
- Heated seat with adjustable temperature (82–97°F), warm air dryer with 5 settings
- Touchless auto open/close lid, automatic air deodorizer, and soft night light
- Stainless steel wall-mounted remote with 4-user memory presets
- Adjustable mounting height — 15″ to 19″ from floor, ADA compliant
- Available in Cotton White, Matte Black (MTO), and Matte White (MTO)
Pros
- Exceptional self-cleaning performance via EWATER+, PREMIST, and CEFIONTECT working together
- Wall-hung design clears the floor completely for easier cleaning and a floating aesthetic
- Adjustable height makes it ideal for multi-generational households and ADA requirements
- Matte Black and Matte White color options give you design flexibility the WX2 doesn’t offer
- Instantaneous heating means you never run out of warm water mid-wash
Cons
- No ACTILIGHT® UV cleaning — relies on EWATER+ and PREMIST alone for bowl hygiene
- Professional installation required — significant construction work involved with any wall-hung toilet
- Wall framing must support up to 880 lbs as specified by TOTO
Check its current price on Amazon
2. TOTO Neorest WX2 (CWT9548CEMFX#01)
The TOTO Neorest WX2 is the top-of-the-line model in the WX wall-hung series — and the only wall-hung smart toilet in the world to feature ACTILIGHT® UV cleaning technology.
It replaces the discontinued Neorest AC and is essentially identical to the WX1 in every feature except one: ACTILIGHT uses ultraviolet light combined with a titanium dioxide and zirconium proprietary glaze to photocatalytically break down and dissolve waste residue on the bowl surface after each use, requiring no chemicals and no manual intervention.
Features
- All features of the WX1, plus ACTILIGHT® UV self-cleaning system built into the lid
- ACTILIGHT activates after each use — UV light + photocatalytic glaze decomposes bowl residue automatically
- CEFIONTECT® ceramic glaze with titanium dioxide and zirconium proprietary coating for deepened self-cleaning
- 3D TORNADO FLUSH® — 1.2 / 0.8 GPF auto dual flush with manual backup
- EWATER+® cleans wand, bowl, and under-seat automatically after every flush
- PREMIST® pre-wets the bowl before use to prevent waste from sticking
- Instantaneous water heater, four wash modes, oscillating and pulsating spray
- Heated seat (82–97°F), warm air dryer (5 levels), auto deodorizer, night light
- Stainless steel remote with 4-user preset memory
- Adjustable height 15″–19″ from floor, ADA compliant
Pros
- ACTILIGHT® is the most advanced toilet self-cleaning technology available — the bowl maintains itself with zero effort from you
- Photocatalytic glaze + UV light combination is the same technology as the floor-mounted Neorest NX2 — now in wall-hung form
- All the comfort, wash, and hygiene features of the WX1 included
- The most hygienic smart toilet you can mount to a wall, full stop
- Seamless seat design eliminates the gap where bacteria and grime collect
Cons
- Significantly higher price than the WX1 — ACTILIGHT comes at a premium
- Only available in Cotton White (no Matte Black or Matte White options)
- Same complex professional installation requirements as the WX1
Check its current price on Amazon
Self-Cleaning Performance: Which Toilet Keeps Itself Cleaner?
This is the headline category — and the WX2 wins decisively.
Both toilets share an impressive triple-layer cleaning system: PREMIST wets the bowl before each use, EWATER+ mists the wand, bowl, and under-seat with electrolyzed water after every flush, and CEFIONTECT glaze creates an ultra-smooth ceramic surface where waste cannot bond easily.
The WX2 adds a fourth layer on top of all of that: ACTILIGHT®.
ACTILIGHT uses UV light built directly into the lid, combined with a specialized titanium dioxide and zirconium proprietary glaze applied to the bowl surface, to trigger a photocatalytic cleaning reaction after each flush.
What that means in practice is that the bowl is actively decomposing any residual waste at the molecular level — not just repelling it or rinsing it away.
You’ll find the same ACTILIGHT technology on the floor-mounted Neorest NX2, one of the highest-rated bidet toilets in existence — and the WX2 brings it to the wall-hung format for the first time.
For someone who genuinely wants a self-maintaining toilet that requires the absolute minimum in manual cleaning effort, the WX2 is the clear winner here.
Winner: WX2
Comfort Features: Are They Any Different?
This is where things get interesting — because they are completely identical.
Both the WX1 and WX2 offer the same instantaneous water heater (no tank, unlimited warm water), the same four wash modes, the same oscillating and pulsating spray options, and the same adjustable water temperature range of 86°F to 104°F.
Both feature a heated seat with five temperature levels (82°F to 97°F surface temperature), a warm air dryer with five airflow settings reaching up to 140°F, and an automatic air deodorizer that activates while you’re seated.
The CLEAN RESIN® material used on both wands and seats resists staining and bacteria growth, making maintenance genuinely easier than on older Neorest models.
The four-user preset system on the stick-style remote — shared by both models — means every member of your household can save their preferred wash pressure, temperature, and nozzle position without fiddling with settings each time.
If comfort features are your primary decision driver, neither model has an edge over the other.
Winner: Tie
Design and Space Savings: Wall-Hung Done Right
Both the WX1 and WX2 share the same skirted, seamless silhouette that TOTO developed over two years specifically for the WX series.
The ceramic bowl and seat top form a single flowing unit with no visible corners, edges, or gaps — which is both a design achievement and a hygiene advantage, since there are no crevices for grime to accumulate.
The wall-hung configuration conceals all plumbing inside the wall via the WT175MA in-wall tank unit (included with both models).
This means no visible tank, no visible pipes, and a floor that’s completely clear — making cleaning the bathroom significantly easier, as any fan of our guide to TOTO wall-hung toilets will appreciate.
Mounting height is adjustable from 15″ to 19″ from the finished floor for both models, making them genuinely ADA-compliant for residential use — a valuable feature for households with seniors or users with mobility needs, as covered in our guide to the best bidets for seniors.
There is one design difference worth noting: the WX1 is available in Matte Black and Matte White as made-to-order finishes in addition to Cotton White, while the WX2 is only available in Cotton White.
For design-forward bathrooms where color coordination matters, that distinction could be the deciding factor.
Winner: WX1 (for design flexibility); WX2 (for hygiene-first minimalism)
Installation: What You Need to Know Before You Buy Either
This is one area where the WX1 and WX2 are completely identical — and it’s important that you understand the commitment involved before purchasing either.
Both toilets require professional installation with proper in-wall framing.
The WT175MA in-wall tank system (included) must be set into a 2×6 stud wall (or 2×4 with optional waste outlet kit for residential use), and the wall framing must be capable of supporting up to 880 lbs of load.
This is not a DIY bidet seat swap like you’d do with a standard electric bidet seat for an existing toilet — it’s a full bathroom construction project typically handled by a licensed plumber and general contractor.
You’ll also need a GFCI outlet concealed inside or near the wall for the electronic top unit.
A copper supply line is included with the WT175MA tank unit. Both models require a 12″ rough-in.
If you’re deciding between a wall-hung integrated toilet and a simpler floor-mounted smart toilet, our roundup of the best toilets with integrated bidets covers floor-mounted options like the Neorest AS and Neorest RS that have a less demanding installation process.
Winner: Tie — identical installation requirements
Value: Is ACTILIGHT Worth the Price Jump?
The WX1 and WX2 are priced at different tiers — the WX2 carries a significant premium over the WX1 specifically because of ACTILIGHT.
Whether that premium is worth it comes down to one question: how much do you value a toilet that literally cleans itself at the molecular level versus one that still has the most advanced passive self-cleaning system available?
The WX1 is not a “budget” toilet by any measure — EWATER+, PREMIST, and CEFIONTECT together are more self-cleaning technology than you’ll find on the vast majority of smart toilets on the market, including many in the Neorest RS and Neorest AS tier.
But the WX2 takes hygiene further than anything else in wall-hung form.
If you’re the kind of person who wants to spend as little time thinking about toilet cleaning as possible — and budget is not the primary constraint — the WX2 justifies its premium clearly.
If you want outstanding self-cleaning performance with more color flexibility and a lower entry price, the WX1 is the rational choice.
Winner: WX1 (value); WX2 (best-in-class hygiene)
Verdict — Which One Should You Buy?
Buy the TOTO Neorest WX1 if… you want the full wall-hung Neorest experience with outstanding self-cleaning tech (EWATER+, PREMIST, CEFIONTECT), prefer color options beyond Cotton White, or have a budget that doesn’t stretch to ACTILIGHT territory.
The WX1 will keep your toilet cleaner than almost any other smart toilet on the market — and for most people, that is more than enough.
Check the current price of the TOTO Neorest WX1 on Amazon
Buy the TOTO Neorest WX2 if… you want the absolute best self-cleaning toilet in wall-hung form, ACTILIGHT’s photocatalytic UV cleaning is genuinely important to your hygiene priorities, and you’re prepared to invest at the top of the market for a toilet that maintains itself with virtually zero effort from you.
Think of the WX1 vs WX2 relationship the same way as the Neorest NX1 vs NX2 — one model does everything right, the other adds ACTILIGHT on top.
Check the current price of the TOTO Neorest WX2 on Amazon
FAQ
Q: What is the main difference between the TOTO Neorest WX1 and WX2?
The only functional difference between the WX1 and WX2 is ACTILIGHT® technology.
The WX2 includes a UV light system built into the lid that, combined with a special titanium dioxide and zirconium coating on the bowl, triggers a photocatalytic cleaning reaction after each use to decompose waste residue automatically.
The WX1 has all other features — EWATER+, PREMIST, CEFIONTECT, identical wash modes, seat, dryer, and controls — but does not include ACTILIGHT.
This is the same relationship between the floor-mounted Neorest NX1 and NX2.
Q: Do the WX1 and WX2 replace any discontinued Neorest models?
Yes.
The TOTO Neorest EW has been discontinued, with the WX1 serving as its direct replacement.
The TOTO Neorest AC has also been discontinued, with the WX2 as its replacement.
If you’re comparing other discontinued Neorest models to current options, our guide to the best toilet bidet combos covers the current Neorest RS, AS, LS, NX1, and NX2 floor-mounted lineup.
Q: Can I install the TOTO Neorest WX1 or WX2 myself?
No — professional installation is required for both models without exception.
Both toilets use an in-wall tank system (WT175MA) that must be set into a properly framed wall capable of supporting 880 lbs.
You’ll need a licensed plumber for the water and drain connections, and the wall framing work is typically done alongside general construction or a bathroom renovation.
This is a fundamental difference between a wall-hung integrated smart toilet and a standard bidet seat replacement like the TOTO WASHLET C5 or S5, which any competent DIYer can install.
Q: Is the TOTO Neorest WX2 worth the premium over the WX1?
If ACTILIGHT self-cleaning technology matters to you, yes — the WX2 is worth the premium.
ACTILIGHT is the most advanced toilet bowl self-cleaning system TOTO makes, and it genuinely delivers a level of hygiene maintenance that no other technology in the WX lineup (or most of the smart toilet market) can match.
If you’re focused on minimizing manual cleaning entirely and budget is secondary, the WX2 is the clear answer.
If you want outstanding (but not ACTILIGHT-level) self-cleaning performance and prefer color flexibility or a lower investment, the WX1 gives you everything else the WX2 has.
Conclusion
The TOTO Neorest WX1 and WX2 are two of the most sophisticated wall-hung smart toilets ever built — and the decision between them really comes down to one word: ACTILIGHT.
Both models share the same stunning skirted design, the same instantaneous water heating, the same four wash modes, the same adjustable mounting height, and the same exceptional trio of EWATER+, PREMIST, and CEFIONTECT self-cleaning systems.
The WX2 adds ACTILIGHT’s UV photocatalytic cleaning on top — making it the most self-sustaining toilet in wall-hung form available today.
The WX1 gives you everything else at a lower price point, with the added advantage of color options the WX2 doesn’t offer.
If you’re still deciding between a wall-hung toilet and a floor-mounted option, compare these models against the Neorest RS and Neorest AS — both excellent smart toilets with a much simpler installation path.
And if you want to see how wall-hung toilets compare to top bidet seat options for your existing toilet, our bidet toilet seat comparison chart is a great next stop.
