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Toto S5 Washlet with Remote - Elongated in Cotton White
Toto S5 Washlet with Remote - Elongated in Cotton White
Toto S5 Washlet with Remote - Elongated in Cotton White
Toto S5 Washlet with Remote - Elongated in Cotton White
Toto S5 Washlet with Remote - Elongated in Cotton White
Toto S5 Washlet with Remote - Elongated in Cotton White
Toto S5 Washlet with Remote - Elongated in Cotton White
Toto S5 Washlet with Remote - Elongated in Cotton White
Toto S5 Washlet with Remote - Elongated in Cotton White

Toto S5 Washlet with Remote - Elongated in Cotton White

Toto S5 Washlet with Remote - Elongated in Cotton White

SKU #: TOTSW3446-01

MPN #: SW3446#01

UPC #: 739268467583

$682.00
$682.00 $0.00
MSRP: $974.00
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Available in stock (116)

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The TOTO Washlet S5 SW3446#01 is an elongated electronic bidet seat in sleek Cotton White. It includes instant tankless water heating, PREMIST bowl misting, EWATER+ wand cleaning, heated seat, warm-air dryer, air deodorizer, night light, and a user-friendly remote.
Toto S5 Washlet with Remote - Elongated in Cotton White

Toto S5 Washlet with Remote - Elongated in Cotton White

$682.00
$682.00 $0.00

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TOTO Washlet S5 Elongated Bidet Seat – Cotton White

TOTO continues to lead in bathroom innovation with the Washlet S5—a refined, ultra-slim model that enhances hygiene and comfort. The SW3446#01 combines top-tier cleansing technology with intuitive controls and modern design for an elevated bathroom experience

  • Brand: TOTO
  • Model (MPN): SW3446#01 (Washlet S5 Elongated)
  • Shape: Elongated
  • Color: Cotton White
  • Water Heating: Instantaneous tankless heating; continuous warm water
  • PREMIST: Mists bowl before each use
  • EWATER+: Automatically cleans wand before and after every use
  • Spray: Gentle aerated warm water with oscillating & pulsating options
  • Comfort Features: Heated seat, warm-air dryer, automatic air deodorizer, night light
  • Control: Multifunction remote with personalized memory settings (up to 4 users)
  • Certifications: cUPC, UL 1431, CSA, ADA compliant, Prop 65
  • Warranty: One-year limited
  • SoftClose seat and lid for quiet closing
  • Docking station allows easy removal for cleaning
  • Reduces toilet paper usage for eco-friendly operation
  • Compatible with most elongated toilets

Our Expert Review: Toto S5 Ultra-Slim Washlet Bidet Seat

Reviewed by: Expert Mack

Overall Score: 4.8/5 Full star Full star Full star Full star Full star

Summary

The Toto S5 Washlet is a big upgrade from its predecessors, moving into the realm of true luxury at a mid-to-high-tier price point. The standout feature is the instantaneous (tankless) heating, which eliminates the risk of running out of warm water—a major improvement over the C5. Combined with an ultra-slim design, four user memory presets, and all of TOTO's best hygiene technology, EWATER+ for chemical-free sanitization, the S5 delivers consistent, and personalized experience.

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Performance: 5/5 Full star Full star Full star Full star Full star

The S5's performance is flawless. The instantaneous heating provides an endless, on-demand warm water spray with a stronger, more consistent feel than the C5's tank-based system. The aerated wash, with its oscillating and pulsating options, is refreshing and highly effective. The warm air dryer also features increased airflow compared to older models, noticeably trimming down drying time. The addition of the subtle in-bowl night light is a fantastic quality-of-life feature, making late-night trips much easier.

User Experience: 5/5 Full star Full star Full star Full star Full star

TOTO has greatly improved the user experience with the S5. The ultra-slim design looks sleek and modern, and the seamless underside is easier to clean than the C5. The biggest user-facing improvement is the multifunction wireless remote with four user memory settings. This allows an entire family to save their favorite settings (temperature, pressure, position) and access them with a single button, a huge leap from the C5's two presets. Installation remains simple with the quick-release docking station.

Quality: 4.5/5 Full star Full star Full star Full star Half star

TOTO maintains its reputation for excellence. The S5 feels premium, durable, and is engineered for long-term reliability. It integrates an upgraded CLEAN RESIN coating on the wand and seat, actively resisting dirt and bio-film to maintain hygiene with less effort. The EWATER+ and PREMIST functions work seamlessly to keep the unit and the bowl cleaner. The only deduction is for the height, as the even more premium S7A achieves an even lower profile.

Value: 4.5/5 Full star Full star Full star Full star Half star

The S5 is priced as a premium seat, but its value is exceptionally strong. It delivers all the crucial luxury features—instantaneous heating, EWATER+, deodorizer, night light, and four user presets—in a modern, slim design. Given the superior comfort and efficiency of the tankless heating and the significant feature upgrades over the C5 (which is now discontinued), the S5 represents the optimal blend of performance and cutting-edge technology for the price. It's a worthy investment that will last for years.

Final Verdict

If you want the most significant comfort upgrade TOTO offers—unlimited warm water—the S5 is the model to choose. It takes everything the C5 did well and perfects it with tankless heating, a slimmer silhouette, and a smarter remote control. For daily hygiene, comfort, and a touch of modern luxury, the Toto S5 Washlet is absolutely a top-tier performer and a highly recommended purchase.

Instantaneous Tankless Water Heating

Offers unlimited warm water on demand—no wait, no stored tank, just consistent comfort.

PREMIST & EWATER+ for Ultimate Cleanliness

PREMIST gently pre-wets the bowl to prevent residue buildup. EWATER+ uses electrolyzed water to automatically sanitize the wand before and after every use.

Customizable Dual-Action Spray

Enjoy a gentle, aerated cleansing experience with oscillating and pulsating spray. Water position, temperature, and pressure are adjustable to suit your preference.

Heated Seat, Warm-Air Dryer & Deodorizer

The seat warms to your desired temperature, while the dryer and deodorizer enhance comfort and freshness. A soft night light adds convenience for nighttime use.

Slim Design & Personalized Remote Control

The S5 boasts a refined, 19% slimmer profile and includes a remote control with memory settings for up to four users, combining elegant form with smart functionality.