Bio Bidet IB 835 Toilet + Bidet Review

What Is the Bio Bidet IB 835?

The Bio Bidet IB 835 -- marketed as the "Bliss IB 835" in some retail listings -- is a fully integrated one-piece toilet and bidet system. Unlike standalone bidet seat add-ons or simple toilet-and-seat combos, the IB 835 integrates the bidet functions directly into the unit's design, with a rear-panel control and a wired remote. This is distinct from TOTO's approach with their Neorest line or Kohler's Veil integrated units, but it targets a more accessible price point than those premium Japanese-designed models.

Bio Bidet is an American brand founded in 2001 that primarily built its reputation selling bidet seats before moving into integrated smart toilets. The IB 835 represents the company's effort to compete in the full-unit smart toilet category. It ships as a complete package: toilet bowl, tank-style unit (though it appears tankless from the front due to the skirted design), bidet seat with nozzles, and remote control with wall bracket.

The unit targets buyers who want the bidet experience without sourcing a separate seat, want a cleaner visual profile than bolt-on solutions, and prefer a skirted trapway for easier cleaning. It uses a standard 12-inch rough-in, which covers the vast majority of North American bathroom installations. For context on rough-in measurements, see our toilet rough-in measurement guide.

What Are the Core Specifications of the Bio Bidet IB 835?

Here is a full specification breakdown for the IB 835 based on manufacturer-published data:

One specification worth flagging: at the time of this review, the Bio Bidet IB 835 does not appear in the public MaP (Maximum Performance) flush testing registry at map-testing.com, which independently verifies flush performance against standardized waste loads. Many premium toilets from TOTO, Kohler, American Standard, and Gerber carry MaP scores of 800g to 1,000g. The absence of a published MaP score means we cannot independently verify bulk waste removal performance to the same standard we apply to tested models in our best flushing toilets guide.

How Does the IB 835 Flush Performance Compare to Top-Rated Toilets?

To put the IB 835 flush into context, here is how it compares to other well-documented toilet models on the key flushing metrics:

The TOTO Aquia IV is the most direct comparison for a dual-flush, WaterSense-certified unit that also pairs well with bidet seats (TOTO's Washlet C100 or C200 can be used alongside it). The Aquia IV's MaP 1,000g certification gives it a documented performance edge. For a review of that pairing option, see our TOTO Aquia IV review.

What Bidet Features Does the Bio Bidet IB 835 Include?

The bidet functions are controlled via a wired remote that mounts to the wall. This differs from wireless remotes used on competing units like the TOTO Washlet S550e, but has the advantage of never running out of battery. The remote covers the following adjustments:

• Nozzle position: Forward and rear adjustment to accommodate different users
• Water pressure: Multiple levels, from gentle to strong
• Water temperature: Three to four warmth settings
• Seat temperature: Multiple levels, can be turned off
• Dryer temperature: Warm air, adjustable strength
• Oscillating wash: Back-and-forth nozzle movement for wider coverage
• Pulsating wash: Rhythmic pressure variation
• Eco mode: Reduces seat heating energy use during inactive periods

The stainless steel nozzle self-cleans before and after each use cycle by rinsing with water. This is a standard feature on bidet seats in this price range and does an adequate job of hygiene maintenance between manual cleanings. For a broader look at how bidet seat features compare across brands, see our best bidet toilet seats guide.

The instant-heating system is a meaningful differentiator from older bio bidet seats that used reservoir tanks. Reservoir systems limit continuous wash time (typically 30 to 60 seconds of warm water before the tank depletes and you wait for reheating). The IB 835's on-demand heating provides continuous warm water for as long as the wash cycle runs.

Is the Bio Bidet IB 835 Easy to Install?

Here is a summary of what the installation process involves:

1. Electrical preparation: A dedicated 15-amp, 120V circuit with a GFCI outlet within reach of the toilet location. Most building codes require GFCI protection for all bathroom outlets. If there is no outlet behind or beside the toilet, an electrician needs to add one before toilet installation can be completed.
2. Floor preparation: Standard toilet installation -- wax ring or wax-free gasket on flange, bolt alignment, unit lowering into place. The skirted design does not change this step but may make it slightly harder to see bolt alignment.
3. Water supply: Standard braided stainless supply line from shut-off valve to the unit's inlet. The IB 835 uses a rear-entry inlet location.
4. Remote wiring: The wired remote connects to the unit via a cable that runs along the wall. This cable should be routed neatly (cable channels are available) and the remote bracket mounted to the wall at a convenient height.
5. Power connection: Once water supply is connected and unit is seated, plug into the GFCI outlet and power on.

Most professional plumbers can complete the toilet portion of installation in under an hour. The electrical component is the most likely to add time or cost if an outlet needs to be added. Budget for the electrical work separately if your bathroom does not already have a conveniently located outlet.

The IB 835's one-piece skirted design is heavier than a comparable two-piece toilet, which is common for integrated smart units. Having a second person available during installation is strongly recommended to avoid floor or unit damage during positioning.

How Does Water Efficiency Work on the Bio Bidet IB 835?

EPA WaterSense toilets must demonstrate both the 1.28 GPF (or lower) flush volume AND meet flush performance criteria established by the Maximum Performance (MaP) testing program -- specifically a minimum 350g waste removal score, with 500g recommended. The WaterSense label on the IB 835 confirms it meets these thresholds, even if the IB 835 is not separately listed in the MaP database with a specific gram score.

For a household replacing a 3.5 GPF toilet (common in homes built before 1994) with the IB 835, EPA estimates annual savings of approximately 13,000 gallons per person per year. Replacing a 1.6 GPF toilet produces roughly 4,000 to 5,000 gallons saved annually per person. These numbers are derived from EPA WaterSense program data and assume 5 flushes per day with the dual-flush unit averaging approximately 0.8 GPF effective rate across flush types.

Dual-flush effectiveness depends on user behavior. Households that consistently use the reduced flush for liquid waste achieve significantly better water savings than those who default to the full flush every time. The IB 835's remote control makes it straightforward to select the appropriate flush mode for each use.

What Do Owners Say About the Bio Bidet IB 835 in Long-Term Use?

Based on aggregated feedback patterns from owner reviews, here is a summary of consistent themes:

Positive patterns:

• Heated seat performance described as reliable and comfortable, especially appreciated in cold climates
• Warm water wash quality rated highly compared to cold-water bidet attachments
• The skirted one-piece design noted as significantly easier to clean around the base compared to exposed-trapway two-piece toilets
• Nightlight function praised by owners with young children for reducing light disruption at night
• Remote control wiring praised as more reliable than wireless remotes on competing units
• Dryer function rated adequate for basic use, though some owners report using toilet paper for final drying

Negative patterns:

• Flush power complaints are the most cited negative: owners coming from American Standard Champion 4, TOTO Drake II, or Kohler Cimarron report the flush feels noticeably less aggressive
• The carbon filter deodorizer requires periodic replacement (approximately annually) -- replacement filters are available but add ongoing cost
• Some owners report the remote bracket mounting requires careful planning to look clean on the wall
• A small number of owners report nozzle retraction issues after extended use, which typically requires a customer service call
• At 1.0 GPF, homes with low-slope drain runs or older cast iron pipes may need occasional double-flushing for solid waste

How Does the Bio Bidet IB 835 Compare to Alternatives?

The IB 835 sits in a category with several direct competitors. Here is how it lines up against the most relevant alternatives:

TOTO Neorest 550H: The benchmark integrated smart toilet from TOTO. It commands a significantly higher price but brings TOTO's Tornado Flush (MaP 1,000g verified), Actilight UV-cleaning technology, and CeFiONtect glaze for superior waste adhesion resistance. For buyers who want the best-in-class integrated experience, the Neorest is the reference point. See our best smart toilets guide for a full breakdown.

Kohler Veil K-5401: Kohler's integrated smart toilet features their Continuous Clean technology and PureWarmth heated seat. Kohler's service network is broader in North America than Bio Bidet's, which is worth considering for long-term maintenance. The Veil's flush rates differ slightly from the IB 835 depending on the specific variant.

TOTO Aquia IV + Washlet C200: For buyers whose primary concern is flush performance, this pairing delivers MaP 1,000g flush capacity alongside a full-featured bidet seat with instant heating, posterior and feminine wash, and a wireless remote. The combined aesthetic is not as seamless as a true one-piece integrated unit, but the performance ceiling is meaningfully higher.

Woodbridge B-0750: A closer price-point competitor to the IB 835. The Woodbridge unit also lacks a published MaP score but carries WaterSense certification and offers a wireless remote, which some buyers prefer over the IB 835's wired approach.