The verdict
The Washlet S5 is the best-overall pick — TOTO's flagship with tankless warm water and 4 user presets.
Strengths
- +Tankless instant warm water — endless warmth
- +4 user presets vs C5's 2
- +Self-cleaning wand + air dryer
- +Heated seat with auto open/close lid
Watch-outs
- −Premium price — most expensive pick
- −Replaces existing toilet seat
- −Electrical outlet near toilet required
How it compares
Best overall. Most premium. Tankless heat unique here.
Who this is for
At a glance: households committed to a full bidet upgrade with multiple users.
Why you’d buy the TOTO Washlet S5
- Tankless instant warm water — endless warmth.
- 4 user presets vs C5's 2.
- Self-cleaning wand + air dryer.
Why you’d skip it
- Premium price — most expensive pick.
- Replaces existing toilet seat.
- Electrical outlet near toilet required.
Rating sources
Our 4.8 score is the average of these published ratings. More about methodology.
