Choosing between the Kohler PureWash E815 and E930 is one of the most common dilemmas for buyers in the mid-to-premium bidet seat market.
Both are polished, well-engineered seats from one of the most trusted names in bathroom fixtures — but they serve different buyers, and this comparison will help you figure out which one is right for you.
| Feature | Kohler PureWash E815 | Kohler PureWash E930 |
|---|---|---|
| Image |  |
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| Dimensions (L x W x H) | 21.25″ x 15.69″ x 7.26″ | 21.4″ x 15″ x 5.3″ |
| Water Heating | Tank (reservoir-style) | Continuous (tank-style) |
| Nozzle | Stainless steel, 3-sided rotating | Stainless steel, UV auto-cleaning |
| Lid Operation | Quiet-Close (manual) | Motion-activated auto open/close |
| Deodorizer | Carbon filter deodorizer | Automatic deodorizer |
| Smart Home | No | Kohler Konnect app + voice control |
| Nightlight | Yes | Yes |
| Buy Now |  |
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1. Kohler PureWash E815 Elongated Bidet Seat
The Kohler PureWash E815 is a feature-rich mid-range electric bidet seat that punches well above its class.
It blends Kohler’s signature build quality with an impressive spec sheet — warm water cleansing, a three-sided rotating stainless steel wand, and a handheld remote with two programmable user presets.
For buyers who want a genuinely capable seat without crossing into the premium price tier, the E815 is one of the smartest picks in the best bidets for home use category.
Features
- Three-sided rotating stainless steel wand with stream, mist, and air mist modes
- 3D wash oscillation (side to side and back and forth)
- Spa Spray mode with automatic temperature adjustment
- Boost spray for maximum rear wash pressure
- Child mode with gentle, low-pressure wash
- Heated seat with five temperature settings
- Warm-air dryer with adjustable settings
- UV auto-wand cleaning before and after each use
- Carbon filter deodorizer
- LED nightlight for bowl illumination
- Power-save mode with auto temperature adjustment
- Quiet-Close lid and Quick-Release hinges
- Two programmable user presets via handheld remote
- 3-year warranty
Pros
- Impressive spray versatility with three distinct wand modes
- 3D wash and Spa Spray features stand out at this price point
- Child mode is a genuinely useful addition for family bathrooms
- Carbon filter deodorizer included — rare at this tier
- Solid 3-year warranty from a trusted brand
Cons
- Lid is manual (Quiet-Close, not auto-open)
- No smart home integration or app control
- Tank-style heating means warm water supply is not unlimited
- Slightly taller profile than the E930
If you want a feature-packed bidet from a reliable brand — without needing app connectivity or an auto-opening lid — the E815 is an outstanding value.
It also performs impressively well if you’re comparing it to other heated bidet toilet seats in its price range.
Check its current price on Amazon
2. Kohler PureWash E930 Elongated Bidet Seat
The Kohler PureWash E930 is Kohler’s slimmest and most advanced bidet seat in the PureWash lineup.
It takes everything the E815 offers and layers on meaningful premium upgrades — a motion-activated auto-opening lid, Kohler Konnect smart home integration, voice control via Alexa or Google Home, and an automatic deodorizer.
If you’re comparing this to other smart bidet options, the E930 holds its own beautifully alongside seats discussed in our bidet toilet seat comparison chart.
Features
- Kohler’s slimmest PureWash profile — nearly indistinguishable from a traditional seat
- Motion-activated lid that opens and closes automatically
- Stainless steel wand with UV auto-cleaning every 24 hours
- Front and rear warm water wash with oscillating and pulsating spray
- Heated seat with multiple temperature settings
- Warm-air dryer with adjustable settings
- Automatic deodorizer
- LED nightlight
- Kohler Konnect app for smartphone control and advanced personalization
- Amazon Alexa and Google Home voice control compatibility
- Two programmable user presets via handheld remote
- Quiet-Close and Quick-Release hinges
- 3-year warranty
Pros
- Touchless auto lid operation is a genuine luxury upgrade
- Slimmest profile in the Kohler lineup — a sleek, modern look
- Smart home and voice control add real convenience
- Automatic deodorizer keeps the bathroom fresher
- UV wand cleaning on a 24-hour automatic schedule
Cons
- Higher price point than the E815
- Smart features require a compatible Wi-Fi setup to unlock full functionality
- The slim profile design may not suit all toilet shapes — always measure first
The E930 is the seat to get if you want the full Kohler smart bathroom experience — and it pairs exceptionally well with Kohler’s Veil or Cimarron toilets for a unified aesthetic.
If you’re also researching where this sits among the highest rated bidet toilets, the E930 consistently ranks among the top electric seat options.
Check its current price on Amazon
Spray Performance: Which One Cleans Better?
The E815 has a slight edge here thanks to its three-sided rotating wand design.
The ability to cycle between Stream, Mist, and Air Mist modes — plus the 3D oscillating wash and Spa Spray — gives the E815 more spray variety than most bidet seats in its price tier.
The E930 counters with oscillating and pulsating spray modes and a UV-cleaned stainless steel wand that auto-sanitizes every 24 hours — making it more hygienic on autopilot.
For pure spray variety, the E815 wins.
For automated cleanliness and consistent hygiene with less manual maintenance, the E930 takes it.
Winner: Kohler PureWash E815 (spray variety); Kohler PureWash E930 (automated hygiene)
Convenience Features: Auto Lid vs. Manual Lid
This is where the E930 pulls clearly ahead.
The motion-activated lid on the E930 means you never have to touch the toilet seat at all — it opens as you approach and closes quietly on its own.
That’s a genuinely meaningful upgrade for hygiene, accessibility, and sheer luxury — especially if you’re also eyeing bidets for seniors or users with limited mobility.
The E815’s Quiet-Close lid is well-made and reliable, but it does require you to lift and lower it manually.
Winner: Kohler PureWash E930
Smart Home Integration
The E815 has no Wi-Fi, no app, and no voice control.
What it does offer is a solid handheld remote with two user presets — which is all most buyers actually use day to day.
The E930 goes further with the Kohler Konnect app, letting you control the seat from your phone, set preferences remotely, and use voice commands through Alexa or Google Home.
If smart home integration matters to you — or you’re building out a connected bathroom — the E930 is the obvious choice.
If you just want a reliable bidet you control with a remote, the E815 delivers exactly that.
Winner: Kohler PureWash E930
Design and Profile
The E930 is the thinner, sleeker seat — Kohler describes it as their slimmest PureWash model, with a profile low enough that it’s nearly indistinguishable from a standard toilet seat at a glance.
The E815 is slightly taller and more traditional in shape, which fits most bathrooms perfectly well but doesn’t have the same ultra-low aesthetic.
For design-conscious buyers or those pairing the seat with a wall-hung or streamlined toilet, the E930 looks significantly more premium.
Winner: Kohler PureWash E930
Value for Money
The E815 offers an exceptional amount of bidet technology — including some features (3D wash, Spa Spray, child mode, carbon filter deodorizer) that you don’t commonly find at this price.
If you compare it to similar seats in the best bidets under $200 category or mid-range options, it holds up exceptionally well.
The E930 costs more — but the auto lid, smart integration, automatic deodorizer, and ultra-slim design are genuine upgrades, not just marketing.
Which one is better value depends entirely on what matters to you.
Winner: Kohler PureWash E815 (budget value); Kohler PureWash E930 (premium features per dollar)
Verdict — Which One Should You Buy?
Both the Kohler PureWash E815 and E930 are excellent electric bidet seats.
The right choice comes down to how much you value smart features, a touchless experience, and an ultra-slim design.
Buy the Kohler PureWash E815 if… you want a highly capable bidet with impressive spray versatility, a carbon filter deodorizer, and solid Kohler build quality — all at a more accessible price.
It’s the smart choice for buyers who want a reliable, feature-loaded seat without the premium cost of smart home integration.
Buy the Kohler PureWash E930 if… you want Kohler’s most refined bidet experience — touchless auto-opening lid, Konnect app control, voice activation, and the slimmest possible profile.
It’s the seat for buyers who are building out a premium or smart bathroom and want every convenience built in.
You can also cross-reference both against the broader market using our bidet toilet seat comparison chart before making your final decision.
FAQ
Is the Kohler PureWash E815 worth it compared to the E930?
Yes — the E815 is genuinely worth it if you don’t need a motion-activated lid or smart home connectivity.
It offers impressive spray modes, a carbon filter deodorizer, UV wand cleaning, and a 3-year warranty, all at a lower price.
For most households, it’s more than enough bidet.
Does the Kohler E930 work without the Konnect app?
Yes, completely.
The E930 operates normally using its included handheld remote, and all core features — wash, dry, heat, pressure — are controllable without the app.
The Konnect app and voice control are optional enhancements.
Do both seats fit on elongated toilets?
Yes, both the E815 and E930 are designed for elongated toilets.
Always measure the distance from your seat bolt holes to the front rim of the toilet bowl before ordering — it should fall between 18 and 19.5 inches for a proper fit.
Both seats are compatible with most major toilet brands including Kohler’s own Cimarron and Archer lines.
Are Kohler bidet seats easy to install?
Yes — both the E815 and E930 are designed for straightforward DIY installation.
They connect directly to your toilet’s existing water supply line, and all necessary hoses and fittings are included in the box.
You do need a dedicated GFCI outlet nearby.
If you’re new to bidet seats vs. bidet toilets, Kohler’s installation guides are clear and beginner-friendly.
Conclusion
The Kohler PureWash E815 and E930 are both exceptional choices — the decision is really about how much you want to invest in premium conveniences.
The E815 gives you excellent cleansing performance, multiple spray modes, a deodorizer, and warm water comfort at a price that’s hard to argue with.
The E930 takes it further with a motion-activated lid, smart home control, automatic deodorization, and Kohler’s slimmest profile ever.
If you’re ready to upgrade your bathroom hygiene — whether you’re comparing a handheld bidet vs. a bidet seat or stepping up from a basic model — either of these Kohler seats will transform your daily routine.
Pick the E815 if value is your priority.
Pick the E930 if you want the most refined Kohler experience available.
Either way, you’re making a genuinely smart upgrade.
