TOTO's New Washlet Lineup: S2, S5, and S7: Features, Benefits, and How They Compare to the Previous Generation
If you’re upgrading to a bidet seat, TOTO’s latest Washlet S2, S5, and S7 make the choice easier than ever. Here we break down real-world benefits, how they compare to older C-series and S-e series models, and quick compatibility tips in plain English, no fluff. Spoiler: The most significant upgrade is endless warm water: S2 / S5 / S7 use instantaneous (tankless) heating, so you don’t run out mid-wash. Older C2/C5 tank heaters typically offered ~30–60 seconds of warm water.