Tankless Smart Toilets

A tankless toilet leaves off the cistern and flushes with water drawn directly from the home supply line, which gives a one-piece or wall-mounted unit a clean, compact profile. Tankless smart toilets then fold the bidet seat, heated seat and hands-free flush into that same body.

A tankless toilet with bidet functions builds front and rear wash, adjustable water temperature and a warm air dryer into the unit. Rough-in size, flush volume and whether a model needs electricity differ by brand, so each listing states them. The HOROW smart toilets collection shows one brand's full lineup, including 10-inch and 12-inch rough-in models.

Why Choose Tankless Toilets from Majestic Flush?

• Filter tankless toilets by brand, color and availability to narrow the range quickly.

• Compare up to three toilets side by side with the on-page compare tool.

• Each listing states rough-in size and flush volume, so you can check fit before you order.

• Customer service answers questions Monday to Friday, 8am to 6pm EST.

You Might Also Like

• Bidet toilets - The full bidet toilet range from TOTO, HOROW, Swiss Madison, and DeerValley, covering tankless and tank-style smart toilets.

• TOTO Neorest smart toilets - TOTO's Neorest line of integrated smart toilets, including the wall-mounted WX1 and WX2 models with built-in bidet seats.

• Swiss Madison smart toilets - Swiss Madison's one-piece and wall-hung smart toilets, from the Concorde and Avancer to the Viro tankless models.

How Tankless Toilet Types Compare

Tankless toilets on this page split three ways, and the practical difference is whether you want a bidet built in and where the toilet mounts. Our smart toilet guide covers the wider category if you are still comparing formats.

Best Tankless Toilets for...

Compact 10-Inch Rough-In Bathrooms

The best tankless toilet for a compact bathroom is one built for a 10-inch rough-in. The HOROW T37 Smart Toilet pairs that rough-in with an integrated bidet seat, a heated seat and automatic flushing.

ADA Comfort Height Without an Outlet

The best tankless toilet for ADA comfort height without an electrical connection is a non-electric bidet toilet. The HOROW N30 has a 17-1/4 inch seat height, an air pressure assisted flush and a built-in cold water bidet wash.

Design-Forward Bathrooms

The best tankless toilet for a design-forward bathroom is one with a statement shape. The Swiss Madison Concorde One Piece Smart Toilet has a square bowl and a 1.28 GPF jet-powered flush with a backup battery.

Wall-Mounted TOTO Installations

The best tankless toilet for a wall-mounted TOTO installation is the TOTO Neorest WX1, a dual flush wall-mounted toilet with an integrated bidet seat. It requires an in-wall carrier.