# Coway Bidetmega 400S Bidet Seat: specs and price

**Price (US):** $599 (Regular price $599.00 on cowaymega.com (Coway's US Bidetmega store). Amazon lists this exact model (Bidetmega 400S(E)) but priced in EUR (€383.10, localized), so US MSRP is taken from the manufacturer's $599.00.), as of 2026-07-10. Among the 17 bidet toilet seats we track it is #11 cheapest of 17; category median $549.
**Brand:** Coway

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | $599 |
| Brand | Coway |
| Price usd | 599 |
| Water heating type | Tankless |
| Nozzle material | Stainless steel |
| Nozzle count | 1 |
| Bowl shape fit | Both |
| Has air dryer | Yes |
| Has deodorizer | No |
| Has night light | Yes |
| Has self cleaning nozzle | Yes |
| Control type | Wireless remote |
| Seat weight capacity (lb) | — |
| Dimensions (in) | 20.9 x 15.3 x 5.31 |

## Where it stands

At $599, the Coway Bidetmega 400S Bidet Seat is #11 cheapest of the 17 bidet toilet seats we track, where the median is $549. On the spec sheet, its nozzle count of 1 is the lowest of the 17, and its price usd of 599 is above the median of the 17.

## Frequently asked questions

**How much does the Coway Bidetmega 400S Bidet Seat cost?**

The Coway Bidetmega 400S Bidet Seat has a US price of $599 (Regular price $599.00 on cowaymega.com (Coway's US Bidetmega store). Amazon lists this exact model (Bidetmega 400S(E)) but priced in EUR (€383.10, localized), so US MSRP is taken from the manufacturer's $599.00.), as of 2026-07-10.

**How does the Coway Bidetmega 400S Bidet Seat compare on price?**

At $599, the Coway Bidetmega 400S Bidet Seat is #11 cheapest of the 17 bidet toilet seats we track, where the median is $549.

**What are the Coway Bidetmega 400S Bidet Seat's key specs?**

Coway Bidetmega 400S Bidet Seat (Coway): priceUsd 599, waterHeatingType Tankless, nozzleMaterial Stainless steel, nozzleCount 1, bowlShapeFit Both. Full sourced spec sheet verified 2026-07-10.

Source: https://cowaymega.com/products/bidetmega-400s (cowaymega.com, accessed 2026-07-10)
Corroboration: https://www.amazon.com/Coway-Electronic-Elongated-Instantaneous-400S/dp/B0DNRJ55VH (accessed 2026-07-10)
Canonical: https://frontdeskreview.com/product/bidet-toilet-seats/coway-bidetmega-400s/
Cite: Per The Front Desk Review, the Coway Bidetmega 400S Bidet Seat price of record was $599 as of 2026-07-10 — https://frontdeskreview.com/product/bidet-toilet-seats/coway-bidetmega-400s/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl