Toto Washlet S5 vs Bio Bidet Discovery DLS
Quick take: The Bio Bidet Discovery DLS costs $50 less.
| Spec | Toto Washlet S5 | Bio Bidet Discovery DLS |
|---|---|---|
| Price | $649 | $599 |
| Rating | 4.7★ (20) | 4.3★ (300) |
| Type | Electric Bidet Seat | Electric Bidet Seat |
| Water Heating | Tankless (Instant Heat) | Tankless (Instant Heat) |
| Controls | Wireless Remote | Wireless Remote |
| Toilet Fit | Elongated & Round versions | Elongated only |
| Power | Needs GFCI outlet within 4 ft | Needs GFCI outlet within reach |
| Spray Pressure | 5 pressure levels | Adjustable multi-level pressure |
| Nozzle | Self-cleaning EWATER+ wand | Stainless nozzle with UV sterilization |
| Install | 30-45 min DIY | 30-45 min DIY |
| Warm water | Yes | Yes |
| Heated seat | Yes | Yes |
| Warm air dryer | Yes | Yes |
| Wireless remote | Yes | Yes |
| Night light | Yes | Yes |
| Deodorizer | Yes | Yes |
| Self-cleaning nozzle | Yes | Yes |
| Feminine wash | Yes | Yes |
| Warranty | 1-year limited | 5-year full |
Pros & cons
Toto Washlet S5
- ✓Four user presets on the remote (up from two on the old C5) store position, pressure, and temperatures per person — the single best shared-bathroom feature at this price
- ✓Instantaneous heating ends the C5's notorious 35-45-second warm-water window; wash for five minutes straight and it never runs cold
- ✓Gained a bowl-illuminating night light the C5 never had — genuinely useful at 3 a.m. and one less reason to pay up for the S7 tier
- ✓EWATER+ sanitizes the wand with electrolyzed water before and after each use, and PREMIST keeps the bowl slick so waste doesn't stick
- ✓Heated seat spans 82-97°F across five settings, and the seamless seat molding has no crevice seam for grime to collect in — a real cleaning-day upgrade over the C5
- ✓Warm-air dryer adjusts 95-140°F — a wider, hotter range than the Brondell Swash 1400's famously tepid dryer
- ✓Slim wall-mountable remote with illuminated touchpad replaces the C5's chunky wand — easier for guests to decode mid-visit
- ✓Elongated and round versions in Cotton White plus a Sedona Beige elongated option — the channel-exclusive KS6 twin comes in white-elongated only
- ✗You're paying roughly $300 over the S2 for a remote and presets — the wash hardware underneath is otherwise identical
- ✗Several early owners note the seat sits tall with a slight forward slope ('feels like it's pushing you forward'), a byproduct of the 7.4-inch rear housing
- ✗The 1,271-watt draw needs a dedicated GFCI within reach of the 3.93-ft cord, and TOTO's manual warns against extension cords
- ✗The dryer, though adjustable, is still TOTO-gentle: plan on 1-2 minutes or a courtesy dab of paper where a Bio Bidet BB-2000 finishes in about 40 seconds
- ✗One-year warranty on a $650 seat, while Brondell backs the cheaper Swash 1400 for three years
- ✗Round version comes only in Cotton White, and mounting the remote bracket means two anchors in your drywall — renters take note
- ✗New-for-2025 platform means clearance C5s flood the used market at ~$300 — tempting, but that's buying into the known cold-water-window complaint
- ✗MSRP is $780 and 'sale' pricing is perpetual — legitimate street price floats $570-670, so treat anything near list as a ripoff
Bio Bidet Discovery DLS
- ✓Motorized auto-open/close lid works reliably on approach — a headline feature usually reserved for $1,000+ seats like the Toto S550e
- ✓Tankless heating delivers genuinely endless warm water with no 30-second cliff, fixing the biggest complaint about the BB-1000/BB-2000 tank designs
- ✓At 4.7 inches tall in the rear it's Bio Bidet's slimmest seat, and reviewers say it finally looks like it belongs on a modern toilet
- ✓UV light sterilizes the stainless nozzle between uses — a hygiene extra even Toto reserves for its ewater+ premium models
- ✓5-year 100% parts-and-labor warranty is the best coverage in the category, beating the BB-2000's 3 years and Toto's 1
- ✓One-button auto wash-and-dry cycle is a favorite among owners buying for elderly parents or post-surgery recovery
- ✓The warm-air dryer is notably stronger than the fan in the BB-2000 — one of the few bidet dryers reviewers say they actually finish with
- ✓Dynamic hot-cold 'therapy' stream is a niche but loved feature for hemorrhoid sufferers
- ✗Peak spray is softer than the pump-driven BB-2000 — Reddit users coming from a vortex-wash Bio Bidet or strong Toto notice the step down in raw pressure
- ✗Reviewed.com's tester hit build-quality issues — inconsistent pressure and temperature and a visibly shaking nozzle — so QC seems less consistent than Toto's
- ✗Confirmation beeps can't be disabled, and the motorized lid is audibly noisier than competitors — annoying in shared or nighttime bathrooms
- ✗Elongated only; round-bowl owners are pointed back to the older BB-1000/BB-2000
- ✗The auto-open lid triggers on pets and passers-by in small bathrooms, and several owners end up turning the motion sensor off
- ✗Tankless heater briefly passes cool water at spray start — a second or two before it warms, which tank-heater owners aren't used to
- ✗No app support or user profiles at a price point where the Alpha JX and Brondell Swash 1400 offer programmable presets
- ✗Like most tankless designs it needs decent household water pressure; low-flow homes report weaker spray than spec suggests