Coway Bidets

Coway has 1 bidet on BidetNerd, priced from $449 to $449. The highest-rated Coway pick is the Coway Bidetmega 400S at 4.5★. Compare the full lineup below.

Coway Bidetmega 400S
$449
Electric Bidet Seat
4.5(250)

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.

i-Wave Auto WashUV Nozzle CareDesign-Award Looks
Tankless (Instant Heat)Wireless RemoteHeated Seat
Best for: Design-conscious buyers who want a one-button automated wash routine rather than fiddling with settings each visit
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