If you’re comparing the TOTO Washlet G5A and the TOTO Neorest RS, you’re looking at two of the most impressive integrated smart toilets on the market right now.
Both deliver the full TOTO experience — auto flush, heated seats, EWATER+, and hands-free everything — but they sit at very different price points, and the right one for you depends on what you value most.
| Feature | TOTO Washlet G5A | TOTO Neorest RS |
|---|---|---|
| Image |  |
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| Dimensions (L x W x H) | 28-7/16″ x 15-1/4″ x 22-3/8″ | 27-1/8″ x 15-1/4″ x 21-1/2″ |
| Flush System | Tornado Flush — 1.2 / 1.0 GPF | Tornado Flush — 1.0 / 0.8 GPF |
| Water Heating | Instantaneous (unlimited warm water) | Instantaneous (unlimited warm water) |
| Wash Modes | 5 (rear, soft rear, front, oscillating, pulsating) | 5 (rear, soft rear, front, oscillating, pulsating) |
| Hygiene Tech | PREMIST + EWATER+ + CEFIONTECT | PREMIST + EWATER+ + CEFIONTECT |
| User Presets | 4 | 2 (4 on updated version) |
| ADA Compliant | Yes (Universal Height) | Yes (Universal Height) |
| Buy Now |  |
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1. TOTO Washlet G5A Integrated Smart Toilet (MS7631CEMFG#01)
The TOTO Washlet G5A is the successor to the discontinued G450, and it brings a meaningful set of upgrades to the integrated smart toilet category.
It’s TOTO’s mid-tier integrated unit — fully loaded with all their signature hygiene technology, designed for buyers who want the complete smart toilet experience without stepping into the full Neorest price tier.
Features
- Tornado Flush system with dual-nozzle 360° bowl cleaning at 1.2 / 1.0 GPF
- Instantaneous warm water heating — unlimited supply, no tank needed
- 5 wash modes: rear, soft rear, front, oscillating, and pulsating
- PREMIST pre-wets the bowl before every use to prevent waste from sticking
- EWATER+ electrolyzed water mists wand and bowl automatically after each flush
- CEFIONTECT ceramic glaze for an ultra-smooth, debris-resistant bowl surface
- Auto open/close lid and auto flush for a fully hands-free experience
- 4 user presets via wireless remote control
- Warm air dryer with 5 temperature settings, built-in deodorizer, and night light
- ADA-compliant Universal Height — easier to sit and stand for all users
Pros
- Strong value for a fully integrated smart toilet — all the TOTO tech at a lower price
- 4 user presets is generous at this price tier
- Compact footprint fits more bathrooms
- EWATER+ and PREMIST together mean less time scrubbing the bowl
- Successor to the popular G450 — improved in nearly every way
Cons
- Design is slightly more angular and industrial compared to the Neorest’s smoother silhouette
- Uses 1.2 / 1.0 GPF — the Neorest RS’s 1.0 / 0.8 GPF is more water-efficient
- Not part of the prestige Neorest product line
Check its current price on Amazon
2. TOTO Neorest RS Dual Flush Integrated Bidet Toilet (MS8341CUMFG#01)
The TOTO Neorest RS is the entry point into TOTO’s legendary Neorest line — a series widely regarded as the gold standard in luxury integrated bidet toilets.
The RS is the most compact Neorest model available, with soft curves, no sharp corners, and the kind of organic form that looks like it belongs in an architectural showroom rather than a typical bathroom.
Features
- Ultra-high-efficiency dual flush at 1.0 / 0.8 GPF — among the lowest in the category
- Tornado Flush system with hole-free rim for complete 360° bowl coverage
- 5 wash modes: rear, soft rear, front, oscillating, and pulsating
- Instantaneous warm water heating for unlimited, on-demand warm cleansing
- PREMIST pre-wets the bowl before every use
- EWATER+ automatically mists the wand and bowl after each flush
- CEFIONTECT ceramic glaze keeps the bowl surface smooth and easy to clean
- Auto open/close lid and auto flush — fully hands-free operation
- Warm air dryer with 5 temperature settings, built-in deodorizer, and night light
- ADA-compliant Universal Height with 17-11/16″ seated height
Pros
- Unmatched aesthetic — smooth, egg-like Neorest silhouette is a genuine design statement
- More water-efficient flush at 1.0 / 0.8 GPF vs the G5A’s 1.2 / 1.0 GPF
- Part of TOTO’s prestige Neorest lineup — the most trusted name in luxury bidet toilets
- Seamless seat design has fewer gaps for dirt and bacteria to collect
- Extremely compact for a full Neorest unit — the smallest in the RS series
Cons
- Significantly higher price than the G5A — this is a premium purchase
- Older listings show only 2 user presets — though the updated RS now includes 4
- Professional installation strongly recommended due to skirted design and freight shipping
Check its current price on Amazon
Design and Aesthetics
Both units are skirted, one-piece integrated smart toilets that look far more modern than a traditional toilet-plus-seat setup.
The G5A has a cleaner, more structured look — slightly angular lines give it a contemporary industrial feel that suits modern and minimalist bathrooms well.
The Neorest RS, by contrast, is defined by its soft, flowing curves without a single sharp corner.
It’s the kind of toilet that looks like a sculptural object rather than a plumbing fixture — and that matters a lot if the master bathroom is important to you.
If you care about having the most visually striking integrated toilet in the room, the Neorest RS wins this category by a clear margin.
If you want a great-looking unit without paying for the prestige design, the G5A delivers.
Winner: TOTO Neorest RS — the Neorest aesthetic is in a class of its own.
Water Efficiency
This is a more meaningful difference than most buyers expect.
The G5A flushes at 1.2 GPF (full) and 1.0 GPF (light).
The Neorest RS flushes at 1.0 GPF (full) and 0.8 GPF (light) — both of which are lower than the G5A’s respective settings.
Over hundreds of flushes per month in a busy household, that adds up to real water savings and lower utility bills.
For anyone focused on sustainability or living in an area with water usage restrictions, the Neorest RS has a practical advantage that goes beyond just bragging rights.
You can read more about long-term savings from upgraded bathroom fixtures in our guide to the best bidets for existing toilets.
Winner: TOTO Neorest RS — meaningfully more water-efficient at every flush volume.
Cleaning Technology and Hygiene
This is the one category where the two toilets are genuinely neck and neck.
Both the G5A and the Neorest RS carry the full suite of TOTO’s cleaning innovations: PREMIST, EWATER+, and CEFIONTECT.
PREMIST coats the bowl with water before you sit, so waste is far less likely to stick.
EWATER+ electrically charges the water to create a mild sanitizing agent that automatically mists the wand and bowl after every flush.
CEFIONTECT is TOTO’s ceramic glaze that creates an ultra-smooth bowl surface, making cleaning faster and less frequent.
Both units also share the same Tornado Flush system — a hole-free rim design with dual nozzles that creates centrifugal, 360° rinsing action with each flush.
If you want to see how these hygiene features compare across a wider range of bidet products, our bidet toilet seat comparison chart breaks it down in detail.
Winner: Draw — both toilets carry the identical TOTO cleaning stack. Neither has an advantage here.
Comfort and User Experience
Both the G5A and the Neorest RS offer the same five wash modes, instantaneous warm water, a heated seat with five temperature settings, a warm air dryer, a night light, and an auto open/close lid.
Both are ADA-compliant Universal Height, making sitting down and standing up easier — a feature that matters a lot for seniors and users with mobility concerns.
For more on accessibility features in the bidet space, take a look at our roundup of the best bidets for seniors.
Where the G5A has a small edge is in user presets: it ships with 4 preset memory slots on its remote, which is especially useful for multi-person households.
The Neorest RS originally launched with 2 presets, though the updated version has moved to 4 — so check the specific listing when purchasing.
For households with two people who share the same bathroom, having four saved profiles means nobody has to reset their preferences each time they sit down.
Winner: TOTO Washlet G5A — 4 confirmed presets out of the box give it a practical comfort edge for families.
Value for Money
The G5A and the Neorest RS share the same core feature set — but the Neorest RS carries a significantly higher price tag.
What you’re paying for with the Neorest RS is the design prestige, the Neorest brand, and the marginally better water efficiency.
If those things matter to you and your budget allows it, the Neorest RS is absolutely worth the premium — it’s a toilet that genuinely changes how a bathroom feels.
But if you want the same TOTO cleaning technology, the same comfort features, and essentially the same daily experience at a meaningfully lower price, the G5A makes a very compelling case.
Browse our guide to the best toilets with bidet if you want to see how both of these fit into the broader smart toilet landscape.
Winner: TOTO Washlet G5A — nearly identical performance at a lower price is hard to argue with.
Verdict — Which One Should You Buy?
Both of these toilets are outstanding products from the most trusted brand in the bidet world — and either one will transform your bathroom routine completely.
The decision comes down to what you’re optimizing for: design prestige and water efficiency, or maximum value for feature-per-dollar.
Buy the TOTO Washlet G5A if… you want TOTO’s full cleaning technology stack — PREMIST, EWATER+, CEFIONTECT, Tornado Flush, auto lid, heated seat, and 4 user presets — at a lower price than the Neorest line.
It’s also the smarter pick if you’re not concerned with having the most aesthetically prestigious fixture in the room.
If you’ve been exploring the mid-range of TOTO’s lineup, also check out how the Brondell Swash 1400 compares to the TOTO S5 for a sense of how TOTO’s seat technology stacks up against other top brands.
Buy the TOTO Neorest RS if… you want the unmistakable Neorest design — those soft, flowing curves and seamless silhouette that make it look like a piece of bathroom architecture rather than a fixture — and you want the most water-efficient flush in the lineup.
It’s the right choice for a master bathroom renovation where aesthetics matter as much as performance, and budget isn’t the deciding factor.
Our highest-rated bidet toilet guide puts the Neorest line in broader context if you want to compare it against other premium integrated units before deciding.
FAQ
Is the TOTO Washlet G5A a Neorest?
No — the G5A carries the WASHLET name, not the Neorest label.
It sits below the Neorest line in TOTO’s lineup but shares many of the same core technologies, including PREMIST, EWATER+, CEFIONTECT, and Tornado Flush.
The Neorest line is differentiated primarily by its organic, sculptural design, more refined aesthetics, and higher water efficiency.
Does the TOTO G5A replace the G450?
Yes — the TOTO Washlet G5A (MS7631CEMFG#01) is the direct successor to the discontinued G450 (MS922CUMFG#01).
The G5A improves on the G450 with updated EWATER+ technology, a refreshed design, and other refinements.
If you were considering the G450, the G5A is the current replacement to buy.
Which TOTO integrated toilet is easiest to install?
Both the G5A and the Neorest RS ship via LTL freight and require a 12″ rough-in.
Both are skirted, which means your electrical outlet and water supply location needs to be planned carefully — they must be in the correct position before installation.
Professional installation is recommended for both units, especially in existing bathrooms where outlet and supply placement may need adjustment.
Our guide to the best bidets for home use covers installation considerations in more detail if you’re new to the category.
How does the Neorest RS compare to other Neorest models?
The RS is the entry-level model in the Neorest lineup and the most compact option.
It shares the same core Neorest DNA — PREMIST, EWATER+, CEFIONTECT, Tornado Flush — while offering a lower price point than the Neorest AS, NX1, or NX2.
The RS is often described as the best way to get into the Neorest family without paying for the more advanced models.
If you’re curious how the Neorest RS compares to other premium TOTO products, our best bidet brands guide covers TOTO’s lineup in detail.
Conclusion
If you’re choosing between the TOTO Washlet G5A and the TOTO Neorest RS, you really can’t go wrong with either one.
Both deliver the full TOTO hygiene experience — PREMIST, EWATER+, CEFIONTECT, Tornado Flush, auto lid, heated seat, warm air dryer, and a completely hands-free bathroom experience that’s hard to go back from.
The Neorest RS wins on design, water efficiency, and the prestige of the Neorest name.
The G5A wins on value — giving you nearly the same technology and daily performance at a meaningfully lower price, with four confirmed user presets baked in.
For most buyers upgrading a bathroom for the first time, the G5A is the smarter financial decision.
For buyers who are remodeling a master bathroom and want a toilet that functions as a design statement, the Neorest RS is worth every penny.
Still exploring your options? Check our full heated bidet toilet seats guide and our best bidets under $500 roundup for a broader look at where these products fit in the market.
