Coway
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.
Specifications
Features
Pros
- ✓Motorized lid opens as you approach and closes quietly after - the only seat in Coway's lineup with it, and it undercuts Toto's auto-lid S7A by hundreds
- ✓UV light sterilizes the nozzle between uses, a genuine hygiene step beyond the self-rinse most seats call cleaning
- ✓WaterShield fine mist coats the bowl to keep waste from sticking, like Toto's PreMist but included at a lower street price
- ✓Instantaneous heating delivers unlimited warm water with i-wave's 3-stage adaptive wash
- ✓Integrated deodorizer plus night light round out a true flagship feature list - nothing is optional
- ✓Sells for $400-500 regularly (nearly 40% off its $699 list), making it cheaper than the Bidetmega 400S was at launch
- ✓Available in both elongated and round, unlike the elongated-only 200N
- ✓Under-30-minute install despite the motorized hardware - reviewers found setup surprisingly simple
Cons
- ✗3.7-star Amazon average is a red flag - the motorized lid and electronics generate far more complaints than simpler seats
- ✗Auto-lid troubleshooting is common enough that Coway support runs a dedicated help channel for it
- ✗More motors and sensors mean more failure points, backed by only a 1-year warranty - a third of the Alpha UX Pearl's coverage
- ✗At $699 list it's poor value; only buy at the frequent sub-$500 street price
- ✗Motorized lid isn't sittable and adds bulk versus Alpha's low-profile seats
- ✗The auto-lid can open for pets or passersby, which owners find gimmicky in small bathrooms
- ✗Remote is Bluetooth-dependent; pairing hiccups lock you out of lid control
- ✗The 400S at $449 delivers the same core wash quality if you can live without the lid theatrics
Compare the Coway Bidetmega 500S
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