Overview
The Coway Bidetmega 400 brings Korean engineering excellence to the premium bidet market. At $799, it competes with the Toto S550e but offers a distinctly different approach: premium materials including stainless steel nozzles, oscillating wash mode, and Korean-engineered reliability. This is for buyers who value cutting-edge design and want to experience Korean bathroom innovation.
Key Specifications
Product Type
Bidet Toilet Seat
Nozzles
Stainless steel dual
Seat Types Fit
Round & Elongated
Features & Technology
The Coway Bidetmega 400 emphasizes premium materials and Korean innovation:
| Feature |
Description |
Included |
| Stainless Steel Nozzles |
Dual nozzles made of premium stainless steel |
✓ |
| Oscillating Wash Mode |
Nozzles move side-to-side for coverage |
✓ |
| Heated Water |
Maintains comfortable water temperature |
✓ |
| Heated Seat |
Warm seat for comfort |
✓ |
| Air Drying |
Warm air dryer |
✓ |
| Adjustable Water Pressure |
Multiple pressure settings |
✓ |
| Self-Cleaning Nozzles |
Auto clean before and after use |
✓ |
| Remote Control |
Control panel for all functions |
✓ |
| Night Light |
LED lighting |
✓ |
| Pulsating Mode |
Pulsating water pressure option |
✓ |
Pros & Cons
Pros
- Premium stainless steel nozzles
- Oscillating wash mode included
- Pulsating mode for variety
- Heated water and seat
- Air dryer included
- Excellent build quality
- Korean engineering expertise
- 2-year warranty (better than most)
- Dual wash modes
- Adjustable pressure
- Great reviews (4.7/5)
- Premium materials throughout
Cons
- Same price as Toto S550e ($799)
- Less established US brand than Toto
- Requires electrical outlet
- More complex system
- Stainless steel may require care
- Premium price point
- May not fit all toilet types
- Availability varies by region
- Support and service less established
- Korean brand less familiar to some
Performance & Real-World Use
Cleansing Performance: Exceptional. Stainless steel nozzles with oscillating and pulsating modes provide excellent cleansing. Dual wash modes offer superior customization. Most users need minimal toilet paper.
Water Temperature: Heating is reliable and maintains perfect temperature. Water heats quickly. Korean engineering shows in the precision heating system.
Comfort: Heated seat and air dryer work excellently. Premium materials make the whole experience feel upscale.
Build Quality: Excellent materials and craftsmanship. Stainless steel nozzles are premium touch that sets this apart from competitors.
Reliability: Korean-engineered systems are known for durability. 2-year warranty reflects manufacturer confidence in the product.
Comparison with Competitors
vs Toto S550e ($799): Same price but different approaches. Toto is Japanese heritage; Coway is Korean innovation. Both excellent—choose based on brand preference.
vs Brondell Swash 1400 ($599): Coway is $200 more but premium materials and stainless steel nozzles justify the difference. Better for luxury seekers.
vs GenieBidet GB-3000 ($449): GenieBidet is $350 cheaper with accessibility focus. Coway is for those wanting premium features and materials.
vs Kohler DTV+ ($1,199): Kohler is $400 more with smart home features. Coway is better for buyers wanting premium without smart tech.
Rating Breakdown
Cleansing Performance
9.2/10
Durability & Warranty
8.8/10
Installation & Setup
Installation Steps (Estimated: 30-45 minutes)
- Turn off water supply - Locate shutoff valve
- Flush to empty tank - Reduces water spillage
- Remove existing toilet seat - Unscrew bolts
- Install bidet mounting plate - Secure with bolts
- Attach water inlet adapter - Connect to water supply
- Connect water hose - Run hose to inlet
- Place bidet seat on plate - Lower and secure
- Plug in power cord - Connect to outlet
- Turn water supply back on - Reopen slowly
- Test all functions - Verify operations
Note: Professional installation recommended for premium model.
Maintenance & Care
Daily: No special maintenance. Self-cleaning nozzles handle cleaning.
Monthly: Wipe stainless steel nozzles with soft cloth. Check for any mineral buildup. Replace any worn seals.
Annually: Deep clean heating tank if you have hard water. Check all electrical connections.
Final Verdict
4.7/5
The Coway Bidetmega 400 is an excellent premium bidet that brings Korean innovation and quality to the market. Stainless steel nozzles, dual wash modes, and premium materials make this a top-tier choice for buyers wanting the best experience.
Best For: Premium buyers, those wanting Korean engineering, buyers who appreciate material quality, those wanting oscillating wash mode, luxury-focused customers.
Not Ideal For: Budget-conscious buyers, those wanting smart home features, those unfamiliar with Korean brands, buyers wanting American brand heritage.
Bottom Line: Excellent premium option at the same price as Toto S550e. Choose based on brand preference: Japanese heritage (Toto) or Korean innovation (Coway).
FAQs About the Coway Bidetmega 400
How does it compare to Toto S550e?
▼
Same price point ($799). Coway offers stainless steel nozzles and oscillating mode; Toto offers Japanese heritage and longer US brand history. Both excellent—choose based on what appeals to you.
Is Korean engineering as good as Japanese?
▼
Absolutely. Coway is a leading Korean bathroom fixture company with excellent reputation globally. Korean engineering in bidets is highly regarded and innovative.
What's special about stainless steel nozzles?
▼
Stainless steel is more durable than plastic and resists corrosion better. It's also perceived as more premium. The nozzles stay cleaner and last longer.
Is oscillating mode really helpful?
▼
Yes. The side-to-side nozzle movement provides broader coverage and more thorough cleansing. Many users prefer oscillating to static spray.
How is customer support?
▼
Coway has good support but is less established in US market than Toto. Support is available but response times may be slightly longer. 2-year warranty is excellent.
Is this worth $799?
▼
For buyers wanting premium features and materials, yes. You're paying for stainless steel, oscillating mode, and Korean engineering. If budget is tight, consider Brondell Swash 1400 at $599.
Related Product Reviews
Where to Buy
- Amazon: Check current price - Best selection and fast shipping
- Coway Official: Direct from manufacturer
- Wayfair: Often has sales
- Specialty bathroom showrooms: Available for testing