Napoleon Bonaparte loved his bidet so much he traveled with it. Then, in his will, he passed it on to his son.That’s the kind of devotion that bidets can inspire.You may not end up passing your bidet down through generations, but you’ll likely be pleasantly surprised how nice you feel after using one.Since 2016 we’ve tested almost 40 bidet seats — in a four-person Brooklyn apartment, with a family of six in New Hampshire, and with another family of five in Los Angeles. Toto’s Washlet S5 is the best we’ve used. For almost eight years we recommended its predecessor, the Toto C5, and this new S5 model, released in 2025, does nothing but improve on the success of that earlier one.