The TOTO Neorest NX2 is the most technologically advanced integrated smart toilet TOTO has ever built — a Japanese-engineered masterpiece that cleans itself with UV light while you sleep.
In this review, you’ll get a no-fluff breakdown of everything the NX2 does, who it’s really built for, and whether it can justify its extraordinary price tag.
Specs: TOTO Neorest NX2 (MS903CUMFX)
| Specification | Detail |
|---|---|
| Image |  |
| Model Number | MS903CUMFX#01 |
| Dimensions (L x W x H) | 31-1/2″ x 18-3/8″ x 23″ |
| Water Heating | Instantaneous (tankless, continuous warm water) |
| Wash Modes | Rear, Soft Rear, Front, Wide Front, Oscillating, Pulsating |
| Hygiene Tech | ACTILIGHT (UV + photocatalytic glaze), EWATER+, PREMIST, CEFIONTECT |
| Controls | Wireless stick-style remote with 4-user memory presets |
| Heated Seat | Yes — 5 temperature settings (approx. 82°F–97°F) |
| Warm Air Dryer | Yes — 5 temperature settings (approx. 95°F–140°F) |
| Night Light | Yes — illuminates behind toilet and inside bowl |
| User Presets | 4 user memory settings |
| Colors Available | Cotton White (#01) |
| Toilet Compatibility | Integrated unit — replaces your existing toilet entirely (12″ rough-in, elongated) |
| Flush System | TORNADO FLUSH — dual flush 1.0 GPF / 0.8 GPF |
| Warranty | 3-Year Limited (Residential) |
| Check Price |  |
Pros & Cons of TOTO Neorest NX2
| ✅ Pros | ❌ Cons |
|---|---|
| ACTILIGHT UV self-cleaning is unlike anything else on the market | One of the most expensive smart toilets you can buy |
| Fully integrated — no external hoses, cords, or mismatched seats | Requires professional installation (plumbing + electrical) |
| Instantaneous water heater — unlimited warm water, never runs cold | Only available in Cotton White |
| PREMIST + CEFIONTECT dramatically reduce manual bowl cleaning | Needs a GFCI outlet within reach — electrical planning required |
| Completely hands-free — auto lid, auto flush, auto deodorizer | ACTILIGHT UV lamp will need eventual replacement over the years |
| 4-user memory presets — ideal for family use | Heavier and larger than a bidet seat — rough-in must be verified before purchase |
| 3-year residential warranty — exceptional for a smart toilet | No Colonial White option; may not match all existing bathroom fixtures |
Check its current price on Amazon
Is the TOTO Neorest NX2 Worth It?
Yes — if your budget allows for it and you want the absolute best, the Neorest NX2 is worth every penny.
There is simply nothing else in the residential market that combines the NX2’s level of autonomous hygiene, sculptural design, and Japanese engineering precision.
The ACTILIGHT system — exclusive to this model within the Neorest lineup — uses UV light combined with a photocatalytic zirconium bowl glaze to continuously break down organic matter at the molecular level.
You are not just getting a bidet that cleans you; you are getting a toilet that cleans itself, automatically, around the clock, without any chemicals.
If you are already exploring the world of best toilets with bidet built in, the NX2 sits at the very top of that conversation.
It is not a purchase for everyone — and it should not be.
But for the right buyer, it is genuinely transformative.
Design and Build Quality
The Neorest NX2’s form is inspired by pebbles shaped by water over centuries — smooth, organic, with no sharp corners or visible seams.
It is a one-piece integrated unit with a fully skirted base, concealed trapway, and no external hoses or cords running along the side of the toilet.
Every element — power, water connection, and electronics — is housed internally or hidden within the wall connection.
The result is a toilet that does not look like a toilet.
It looks like a piece of bathroom architecture.
At 31-1/2″ long, 18-3/8″ wide, and 23″ tall, it has a commanding but not overwhelming presence in the bathroom.
The seamless seat design eliminates the gap found on most bidet toilet seats where dirt and moisture collect — a smart, functional touch that also looks impeccable.
If you are designing a full bathroom upgrade, the NX2 pairs naturally with the clean minimalism you will find discussed in our guide to the highest-rated bidet toilets.
Cleaning Performance — ACTILIGHT Changes Everything
This is where the Neorest NX2 separates itself from every other product in its category, including its own sibling, the Neorest NX1.
ACTILIGHT is a photocatalytic cleaning system built into the lid.
After each flush, the lid emits UV light that activates the zirconium glaze applied to the bowl surface.
This triggers a chemical reaction that continuously breaks down organic matter — bacteria, waste residue, and grime — at the molecular level.
No chemicals required.
No scrubbing needed.
The NX2 also self-cleans after eight hours of inactivity, so you wake up each morning to a bowl that has been sanitizing itself overnight.
Layered on top of ACTILIGHT, the NX2 deploys PREMIST — which automatically mists the bowl surface with water before you sit down, making waste around 80% less likely to stick.
After each use, EWATER+ — electrolyzed water — sanitizes the wand inside and out, mists the underside of the seat, and coats the bowl.
CEFIONTECT, TOTO’s ion-barrier ceramic glaze, creates an ultra-smooth surface that further prevents anything from adhering.
If you have ever compared the maintenance effort on a standard toilet versus a premium bidet seat, the NX2 is in a completely different league entirely.
For users who value personal cleansing hygiene, the integrated bidet delivers warm water rear, soft rear, front, and wide front wash modes, along with oscillating and pulsating patterns — all adjustable for temperature, pressure, and position.
The instantaneous water heater means there is no tank to run cold, ever, no matter how long your wash takes.
For a deeper look at why these hygiene features matter, our article on the best bidets for existing toilets covers the core principles well.
Comfort Features
The Neorest NX2 is designed so that you never have to touch anything.
As you approach the toilet, its sensor detects your presence and the lid opens automatically.
The seat is heated — five adjustable temperature settings ensure you are never greeted by cold porcelain, even in winter.
A dual-zone night light softly illuminates the bowl and the area behind the toilet, so you can navigate your bathroom in the dark without disturbing anyone or switching on harsh overhead lighting.
The automatic deodorizer activates the moment you sit and continues immediately after you rise, processing air through an O2 system that neutralizes odors in real time.
When you are done, the warm air dryer — with five temperature settings — finishes the job completely, eliminating your need for toilet paper entirely if you prefer.
When you rise, the toilet flushes automatically using the dual-flush TORNADO FLUSH system — 0.8 GPF for lighter use or 1.0 GPF for heavier needs — and the lid closes quietly behind you.
These kinds of hands-free features are exactly why our guide to best bidets for seniors consistently highlights fully integrated smart toilets as the gold standard for elderly and mobility-limited users.
Controls and Installation
The NX2 ships with an ergonomic stick-style wireless remote that supports four individual user memory presets.
Each person in your household can store their preferred water temperature, pressure, seat temperature, dryer temperature, and spray position — no resetting required each time.
The remote is straightforward and legible, with clear button labeling.
Installation is a full toilet replacement, not a bidet seat swap.
It requires a 12″ rough-in (the standard in most North American bathrooms) and an elongated bowl configuration.
A GFCI electrical outlet must be accessible near the toilet — this is non-negotiable, as the NX2 is a fully powered unit.
TOTO strongly recommends using a surge protector to protect the electronics.
Professional plumbing and electrical involvement is strongly recommended for this installation — this is not a weekend DIY project the way a bidet seat for your existing toilet might be.
If you are currently using a TOTO bidet seat like the S7 or S5 and want to understand how the NX2 compares in terms of flush and hygiene technology, the integrated approach is a significant upgrade in cohesion and aesthetics.
There is no WASHLET+ system needed here — everything is already unified within the unit itself.
Who Is the TOTO Neorest NX2 Best For?
The Neorest NX2 is built for buyers who want the absolute pinnacle of smart toilet technology with zero compromises.
It is ideal for luxury bathroom renovations where design cohesion matters — no exposed wires, no mismatched seat, no second-guessing whether your bidet seat fits your toilet correctly.
It is the right choice for households that prioritize hygiene automation — people who want the toilet to handle its own cleaning so they do not have to.
It is also excellent for multi-person households, with four individual user presets ensuring everyone gets their personalized experience without adjusting settings each time.
If you are comparing the NX2 against the rest of the Neorest lineup, our highest-rated bidet toilet guide gives you a broader market perspective.
And if you are still deciding between a fully integrated unit and a premium bidet seat for your existing toilet, our bidet toilet seat comparison chart is a great starting point for understanding what each approach gives you.
FAQ
Is the TOTO Neorest NX2 discontinued? What is the current model?
The NX2 (MS903CUMFX) is TOTO’s current flagship integrated smart toilet and is actively available.
It is not discontinued.
It replaces the older Neorest 700H generation and sits above the NX1 in TOTO’s lineup, differentiated by its exclusive ACTILIGHT UV self-cleaning system.
Does the TOTO Neorest NX2 fit round toilets?
No — the NX2 is an elongated integrated toilet unit, not a bidet seat you attach to an existing toilet.
It replaces your toilet entirely.
It requires a standard 12″ rough-in, elongated bowl configuration, and a nearby GFCI electrical outlet.
Since it is a complete toilet replacement, round vs. elongated bowl compatibility is not relevant — you are installing a new toilet, not fitting a seat.
What is ACTILIGHT and why is it only on the NX2?
ACTILIGHT is TOTO’s photocatalytic UV cleaning system built into the toilet lid.
After each flush and after 8 hours of inactivity, the lid emits UV light that activates a special zirconium glaze applied to the bowl surface, breaking down organic matter at the molecular level — continuously, automatically, without chemicals.
It is exclusive to the NX2 within the current Neorest line because it requires a specially coated bowl (different from the standard CEFIONTECT glaze used in other Neorest models) and the integrated UV lamp in the lid.
The NX1 uses EWATER+ and PREMIST for hygiene but does not have ACTILIGHT.
How does the TOTO Neorest NX2 compare to the Neorest RS and AS?
The NX2 is above both the RS and AS in TOTO’s integrated toilet hierarchy.
The Neorest RS (MS8341CUMFG) and AS (MS8551CUMFG) are excellent premium smart toilets with EWATER+ and PREMIST, but neither features ACTILIGHT UV self-cleaning.
The NX2 also has a more refined, organic pebble-inspired silhouette compared to the more traditional styling of the RS and AS.
If budget is a factor, the RS or AS are compelling alternatives that still deliver a dramatically elevated bathroom experience.
Final Verdict
The TOTO Neorest NX2 is, without qualification, the most complete smart toilet TOTO has ever built for residential use.
ACTILIGHT UV self-cleaning, PREMIST, EWATER+, CEFIONTECT, instantaneous warm water, automatic lid, automatic flush, four-user presets, heated seat, warm air dryer, and dual-zone night light — every feature works in harmony to create a bathroom experience that is genuinely unlike anything else available.
It demands a meaningful investment and professional installation, but for a luxury bathroom renovation where only the best will do, there is nothing to compromise on here.
If you are still exploring your options, our guide to the best toilets with bidet covers the full range of integrated smart toilets worth considering — and our bidet toilet seat comparison chart is the ideal companion if you want to weigh a premium seat for your existing toilet against the full-replacement path.