Coway bidets

Coway has 3 models on BidetNerd, listed from ~$227 to ~$449. The most fully-featured is the Coway Bidetmega 500S (8 of 8 features) and the cheapest is the Coway Bidetmega 200N at ~$227. Most capable first below, cheapest first on ties.

Coway Bidetmega 500S
~$449

Coway / Electric Bidet Seat

Coway Bidetmega 500S

Coway's flagship seat and the only Bidetmega with a motorized auto open/close lid, driven from a Bluetooth remote for a fully touchless visit. Triple Hygiene Care stacks WaterShield anti-contaminant misting, automatic nozzle cleaning, and UV nozzle sterilization on top of instantaneous tankless heating, i-wave washing, a deodorizer, and night light. Lists at $699 but routinely sells in the $400-500 range, straddling premium Totos like the S7.

Heating
Tankless
Control
Wireless Remote
Install
under 30 min DIY
Warranty
1-year limited
  • Auto Open/Close Lid
  • UV Nozzle Sterilizing
  • Touchless Experience

Best for Tech-first buyers who want a touchless motorized lid and UV hygiene without $1,000+ Toto S7A pricing

Full specs & owner notes
Coway Bidetmega 200N
~$227

Coway / Electric Bidet Seat

Coway Bidetmega 200N

Launched April 7, 2026, the 200N is Coway's new entry point to the Bidetmega line, replacing the aging Bidetmega 200. It keeps the brand's signature i-wave 3-stage wash (soft start, main wash, rinse - up to 120 seconds), adds a wireless remote with dual user profiles, a night light, Air+ bubble-infused spray, and a hybrid heater that sustains continuous warm water. Elongated only, $429 list, and already discounting hard on Amazon.

Heating
Hybrid Heater
Control
Wireless Remote
Install
30-45 min DIY
Warranty
1-year limited
  • New for 2026
  • i-wave 3-Stage Wash
  • Dual User Profiles

Best for Coway fans who want i-wave washing and a remote without paying 400S/500S flagship money

Full specs & owner notes
Coway Bidetmega 400S
~$449

Coway / Electric Bidet Seat

Coway Bidetmega 400S

Coway retired the original Bidetmega 400 and replaced it in 2025 with this 400S — same design-award-winning minimalist look, now with instant tankless heating and 'Triple Hygiene Care' (anti-stick WaterShield bowl mist, auto-cleaning stainless nozzle, and UV nozzle light). Its signature i-wave system runs automated multi-stage wash courses that vary pressure, temperature, and motion. Lists at $599 direct but typically sells around $450 on Amazon.

Heating
Tankless
Control
Wireless Remote
Install
30-45 min DIY
Warranty
1-year limited
  • i-Wave Auto Wash
  • UV Nozzle Care
  • Design-Award Looks

Best for Design-conscious buyers who want a one-button automated wash routine rather than fiddling with settings each visit

Full specs & owner notes