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Head-to-head · Best Bidet Toilet Seat Attachments

TOTO Washlet S5 (SW3446) vs Tushy Classic 3.0

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

TOTO Washlet S5 (SW3446) comes out ahead by a narrow margin (4.7 vs 4.6). The gap is mostly about buyers who want the full electric-seat experience with a heated seat, dryer, and endless warm water and have a nearby outlet — read the strengths below before deciding.

TOTO Washlet S5 (SW3446)
Higher ratedRanked #1 in Best Bidet Toilet Seat Attachments
TOTO Washlet S5 (SW3446)
$682as of Jun 7

The TOTO Washlet S5 is the premium pick - a full electric bidet seat that replaces your toilet seat and adds a heated seat, instantaneous endless warm water, a warm-air dryer, automatic deodorizer, and self-cleaning wand tech (EWATER+ and PREMIST). Wirecutter named it the best bidet seat. It costs roughly ten times an attachment and needs a power outlet, and a few owners report leaking over time, but for the full luxury experience nothing here is close.

Strengths
  • — Instantaneous water heater delivers endless warm water at 95-104F
  • — Heated seat (82-97F) with warm-air dryer (three temps) and automatic deodorizer
  • — Front, rear, and soft-rear washes with oscillating and pulsating options
Watch-outs
  • — Far more expensive than any non-electric attachment, often $700+
  • — Requires a nearby GFCI power outlet - electrician may be needed
  • — Some owners report occasional water leaking over time
$682 · Check Price on AmazonFull review →
Tushy Classic 3.0
Ranked #3 in Best Bidet Toilet Seat Attachments
Tushy Classic 3.0
$129as of Jun 7

The Tushy Classic 3.0 is the design-led, comfort-first attachment: reviewers from CNN to Bob Vila single out its stream as the most comfortable in the class, and its adjustable nozzle angle makes a thorough clean easy. It is cold-water only and single-nozzle, so it is simpler than the Luxe, but it installs in under ten minutes, fits almost any toilet, and carries one of the highest owner-review counts in the category. For a no-fuss first bidet, it is a top choice.

Strengths
  • — Reviewers rate its single-nozzle stream the most comfortable in the attachment class
  • — Adjustable pressure plus a precision nozzle-angle adjuster for targeted cleaning
  • — Self-cleaning SmartSpray nozzle rinses before and after each use
Watch-outs
  • — Cold water only on the Classic - warm water requires stepping up to the Tushy Spa
  • — Single nozzle, where rivals like the Luxe Neo 320 Plus offer dual nozzles
  • — Controls and knob are basic compared to multi-function panels
$129 · Check Price on AmazonFull review →

How they stack up

TOTO Washlet S5 (SW3446)

The luxury electric seat in this lineup - it adds a heated seat, warm-air dryer, deodorizer, and instantaneous endless warm water that no non-electric attachment can match, but it costs roughly ten times the Luxe Bidet Neo 320 Plus or Tushy Classic 3.0 and needs a power outlet; the Tushy Spa 3.0 approximates its warm water without electricity, and the Brondell SimpleSpa Thinline is its budget opposite.

Tushy Classic 3.0

The comfort pick - reviewers rate its single-stream wash above the dual-nozzle Luxe Bidet Neo 320 Plus for sheer comfort, though the Luxe adds a second nozzle and self-clean; it is cold-water only, so the warm-water Tushy Spa 3.0 is the step up, and it is far simpler than the electric TOTO Washlet S5 while feeling more refined than the bare-bones Brondell SimpleSpa Thinline.

Specs side-by-side

SpecTOTO Washlet S5 (SW3446)Tushy Classic 3.0
TypeElectric bidet seat (washlet)Non-electric clip-on attachment
Water HeatingInstantaneous, 95-104F (endless)—
Heated SeatAdjustable 82-97F—
DryerWarm air, 3 temperatures (95-140F)—
Wash ModesFront, rear, soft rear; oscillating + pulsating—
Self-CleaningEWATER+ wand + PREMIST bowlSmartSpray, rinses before + after
RemoteWireless, memory for 4 users—
FitElongatedFits ~95% of toilets
Nozzles—Single, angle-adjustable
Water Temperature—Cold only
Pressure Control—Adjustable knob
Install Time—About 8-10 minutes
Power—None - water pressure driven
← See the full ranking of best bidet toilet seat attachments