Choosing between the TOTO Neorest RS and NX1 is one of the toughest calls in the luxury smart toilet market — and you deserve a straight answer.
In this comparison, you’ll get a clear breakdown of exactly what separates these two flagship integrated bidet toilets so you can spend your money with confidence.
| Feature | TOTO Neorest RS | TOTO Neorest NX1 |
|---|---|---|
| Image |  |
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| Dimensions (L x W x H) | 30.9″ x 15.4″ x 23.5″ | 31.5″ x 18.4″ x 23″ |
| Bowl Design | Hole-free rim, skirted | Rimless, sculptural egg shape |
| EWATER+ Coverage | Wand & bowl | Wand, bowl & under-seat |
| User Presets | 2 | 4 |
| Remote Control | High-quality plastic | Stainless steel |
| Flush System | 1G Tornado Flush (1.0 / 0.8 GPF) | 1G Tornado Flush (1.0 / 0.8 GPF) |
| ADA Compliant | Yes | Yes |
| Buy Now |  |
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1. TOTO Neorest RS (MS8341CUMFG#01)
The TOTO Neorest RS is the entry point into the Neorest family, replacing the beloved Neorest RH with meaningful upgrades — including a seamless seat design, four user presets over the old model’s two, and a sleek new block-style remote.
It’s built around TOTO’s signature Clean Synergy technology: CEFIONTECT glaze, PREMIST bowl misting, and EWATER+ wand and bowl sanitization — all working together to keep the toilet cleaner between uses and reduce how often you need to reach for a cleaning product.
Features
- Dual flush: 1.0 GPF and 0.8 GPF TORNADO FLUSH system
- PREMIST bowl pre-wetting before every use
- EWATER+ electrolyzed water sanitizing for wand and bowl
- CEFIONTECT ceramic glaze prevents waste adhesion
- Auto open/close lid with approach sensor
- Heated seat with 5 temperature settings
- Warm air dryer with 5 temperature settings
- Automatic air deodorizer
- Soft nightlight for low-light navigation
- 2 user memory presets
- Plastic wall-mount remote control
- ADA compliant, universal height (17-5/16″ seated)
- Skirted design with concealed trapway
- Requires 12″ rough-in and GFCI electrical outlet
Pros
- Most affordable entry point into the Neorest lineup
- Compact footprint — ideal for smaller or secondary bathrooms
- Full TOTO Clean Synergy technology at a lower price
- Organic, soft-curved design blends with most bathroom styles
- ADA compliant and universally accessible
Cons
- Only 2 user presets vs. 4 on the NX1
- No under-seat EWATER+ sanitizing
- Plastic remote feels less premium at this price level
- Smallest seat area of any Neorest model — less comfortable for larger users
- Lid hinge doesn’t allow lid to open fully flat against the wall
Check its current price on Amazon
2. TOTO Neorest NX1 (MS902CUMFG#01)
The TOTO Neorest NX1 is the most visually striking toilet in the Neorest floor-mount lineup — a sculptural, egg-shaped unit crafted from a single piece of vitreous china that commands attention the moment you walk into a room.
Beyond aesthetics, it earns its premium positioning with the widest seat area of any Neorest model, under-seat EWATER+ sanitizing that the RS lacks, a stainless steel remote, and four user presets for households where multiple people have very different preferences.
Features
- Dual flush: 1.0 GPF and 0.8 GPF TORNADO FLUSH system
- PREMIST bowl pre-wetting before every use
- EWATER+ sanitizing for wand, bowl, AND under the seat
- CEFIONTECT ceramic glaze on 100% vitreous china construction
- Rimless bowl design for easier cleaning access
- Auto open/close lid that opens fully flat against the wall
- Heated seat with 5 temperature settings
- Warm air dryer with 5 temperature settings
- Automatic air deodorizer
- Soft nightlight emanating from the bowl
- 4 user memory presets
- Stainless steel wall-mount remote control
- Self-clean cycle activates after 8 hours of inactivity
- ADA compliant, universal height
- Requires 12″ rough-in and GFCI electrical outlet
Pros
- Widest, most comfortable seat area of any Neorest model
- Under-seat EWATER+ sanitizing adds hygiene coverage the RS skips
- Premium stainless steel remote matches the luxury positioning
- 4 user presets — ideal for multi-person households
- Lid opens fully flat, creating a sleeker, more integrated look
- All-vitreous china construction — no plastic in the bowl unit
Cons
- Significantly more expensive than the Neorest RS
- Larger footprint — needs more bathroom space
- Professional installation strongly recommended given the price
- Heated seat warms on approach rather than staying continuously heated
Check its current price on Amazon
Head-to-Head: RS vs NX1 in the Areas That Matter Most
Design and Footprint
The Neorest RS has an organic, softly curved silhouette with gentle edges and a skirted trapway — it’s understated, elegant, and fits well in both modern and transitional bathrooms without demanding to be the focal point.
The NX1 is a different animal entirely.
Its sculptural egg shape — made from 100% vitreous china — is unmistakably a statement piece, designed to make the toilet itself a defining architectural element of the bathroom.
The NX1 lid also opens fully flat against the wall for a cleaner, more integrated appearance, whereas the RS lid has a standard hinge that stops short of full-flat.
In terms of footprint, the NX1 is wider (18.4″ vs 15.4″) and slightly longer, so if bathroom space is tight, the RS has a clear practical advantage.
Winner: NX1 — for design ambition and aesthetic impact. RS wins on compactness.
Hygiene Technology
Both toilets share TOTO’s core Clean Synergy platform: CEFIONTECT glaze, PREMIST pre-wetting, and EWATER+ electrolyzed water sanitizing for the wand and the bowl.
The NX1 goes a step further with EWATER+ coverage under the seat — an area that collects bacteria and residue that most users never think to clean.
The NX1 also uses a rimless bowl design, which eliminates the hidden crevices where bacteria can accumulate under a traditional rim channel — something the RS’s hole-free rim design, while still excellent, doesn’t fully eliminate.
For users who care deeply about passive hygiene maintenance — the kind that happens automatically without you lifting a finger — the NX1 offers a more comprehensive solution.
If you want to explore how EWATER+ compares across TOTO’s broader lineup, the bidet toilet seat comparison chart is a great place to dig in further.
Winner: NX1 — under-seat EWATER+ and a rimless bowl give it the hygiene edge.
Comfort and Seat Space
The NX1 has the largest seat area of any Neorest model — and you notice the difference from the moment you sit down.
Its widened, ergonomically designed seat cradles the body more naturally, and the slightly angled design supports a more comfortable seated posture compared to the RS’s more horizontal, standard sit.
The RS is perfectly comfortable for most users — this isn’t a problem seat by any measure — but if you’re taller, heavier, or simply want to maximize comfort, the NX1 wins this category decisively.
Both seats offer heated temperature control across five settings, which is particularly appreciated in colder months — and if you’re shopping for a bidet for seniors or those with limited mobility, the larger seat area and auto-flush on both models make life considerably easier.
Winner: NX1 — noticeably more seat space and a more ergonomic design.
Controls and Personalization
The RS comes with a high-quality plastic remote that’s clean, functional, and easy to navigate — but at Neorest prices, a plastic remote does feel slightly out of step with the premium experience.
The NX1 ships with a stainless steel remote that matches the overall luxury aesthetic and feels substantial in hand.
User preset memory is another key difference: the RS gives you 2, which works well for couples.
The NX1 gives you 4, which is the better fit for households of three or four people where everyone has meaningfully different water temperature, pressure, and nozzle position preferences.
If you want to understand how preset memory stacks up against other washlet features, the TOTO C5 vs S7 comparison covers how user personalization works across TOTO’s seat lineup.
Winner: NX1 — stainless steel remote and 4 user presets pull ahead.
Value for Money
This is where the RS makes its strongest case.
The Neorest RS delivers TOTO’s full Clean Synergy platform — PREMIST, EWATER+ for wand and bowl, CEFIONTECT, auto flush, auto lid, nightlight, heated seat, warm air dryer, deodorizer — at a significantly lower price point than the NX1.
The extra money you spend on the NX1 buys you: under-seat EWATER+, a rimless bowl, a stainless steel remote, two additional user presets, a larger seat, and a markedly more dramatic design.
Whether those upgrades justify the price gap is entirely personal.
If you’re remodeling a master bathroom and want a showstopper that also happens to be hygienically superior, the NX1 is worth every dollar.
If you’re upgrading a guest bathroom or want to experience the full Neorest platform without paying the top-tier premium, the RS delivers enormous value — especially compared to adding a bidet seat to an existing toilet, which you can read more about in the bidet toilet vs bidet seat breakdown.
Winner: RS — unmatched value for a full-featured integrated smart toilet.
Verdict: Which One Should You Buy?
Buy the TOTO Neorest RS if… you want to experience the complete Neorest platform — auto lid, PREMIST, EWATER+, Tornado Flush — at a more accessible price point.
It’s the smart choice for secondary bathrooms, smaller spaces, or anyone who wants flagship-tier hygiene technology without the NX1’s price premium.
It’s also the better fit if compact dimensions matter — at 15.4″ wide, the RS is noticeably easier to accommodate in tighter floor plans.
Check out our best toilets with bidet roundup to see how the RS stacks up against other integrated options in its class.
Buy the TOTO Neorest NX1 if… you’re designing a master bathroom around a centerpiece fixture and want the most comfortable, most hygienically complete, and most visually distinctive Neorest available outside the NX2.
The NX1’s extra seat space, under-seat EWATER+, stainless steel remote, and four user presets make it the right call for primary bathrooms used daily by multiple people — and for buyers who want a toilet that genuinely rivals the look of a full spa installation.
If you’re undecided between an integrated toilet and a high-end washlet seat, the highest-rated bidet toilet guide covers more options across both categories.
FAQ
Is the TOTO Neorest RS being discontinued?
No — the Neorest RS (MS8341CUMFG#01) is the current active model that replaced the discontinued Neorest RH.
It was introduced as part of TOTO’s 2023 Neorest lineup refresh alongside the Neorest AS, LS, and NX1 updates.
The RS is in full production and actively sold by authorized dealers.
Can both the RS and NX1 work in the same rough-in as my existing toilet?
Both the Neorest RS and NX1 are designed for a standard 12″ rough-in — the same as most American toilets.
Both also require a GFCI electrical outlet within reach of the unit.
If your water supply comes from the wall rather than the floor, both models can accommodate that — the supply line entry point is typically 4.5″ from center on the left side when facing the unit.
For a broader overview of what to check before replacing your toilet entirely, the best bidets for existing toilets guide covers compatibility factors in detail.
What is the difference between EWATER+ on the RS vs the NX1?
Both models use EWATER+ — TOTO’s electrolyzed water technology — to sanitize the bidet wand before and after each use, and to mist the inside of the toilet bowl after flushing.
The key difference is that the NX1 extends EWATER+ to the area under the seat as well, sanitizing a surface that accumulates bacteria over time and that most cleaning routines miss entirely.
The RS does not have under-seat EWATER+.
If passive, hands-free bathroom hygiene is a priority, this is one of the clearest practical reasons to step up to the NX1.
For more on how EWATER+ technology works day to day, check out our pros and cons of bidets guide which covers the hygiene case for automated cleaning in full.
How does the NX1 compare to the NX2 — is it worth stepping up further?
The TOTO Neorest NX2 is the NX1’s more advanced sibling, adding ACTILIGHT technology — a UV clean light system built into the lid that uses photocatalytic reactions to break down waste at a microscopic level.
In practical terms, the NX2 is effectively self-cleaning in a way the NX1 is not.
The price gap between the two is substantial.
For most buyers, the NX1 represents the ideal balance of flagship hygiene technology and price — the NX2 is for those who want the absolute pinnacle and for whom budget is not a constraint.
Conclusion
Both the TOTO Neorest RS and NX1 represent the best that integrated smart toilet technology currently has to offer — Tornado Flush power, CEFIONTECT glaze, PREMIST, EWATER+, auto-everything, and a level of daily comfort that makes the investment hard to regret.
The Neorest RS is the smarter value play — a full-featured, compact, and elegantly designed integrated toilet that gives you the entire Neorest hygiene platform at a price that’s far more approachable.
The Neorest NX1 is the right choice when you want the most comfortable seat, the most complete hygiene coverage, the most luxurious remote, and a design that genuinely transforms how a bathroom feels.
Whichever direction you go, you’ll be stepping into a level of bathroom experience that most people don’t know exists — and once you’ve used one of these, you won’t want to go back.
If you’re still deciding between a full integrated toilet and a premium washlet seat, the bidet toilet seat comparison chart and the TOTO AP vs EP wall-hung toilet comparison are both worth reading as you finalize your decision.
