Bio Bidet BB-500 vs Bemis Renew Wash

Quick take: Only the Bemis Renew Wash has a warm-air dryer.

SpecBio Bidet BB-500Bemis Renew Wash
Approx. price~$199~$199
TypeElectric Bidet SeatElectric Bidet Seat
Water heatingTankless (Instant Heat)Tankless (Instant Heat)
ControlsControl DialSide Control Panel
Toilet fitElongated onlyElongated & Round versions
PowerNeeds GFCI outlet within 4 ftNeeds GFCI outlet within reach
Spray pressureAdjustable knob pressureAdjustable pressure & temperature
NozzleDual self-cleaning nozzlesSelf-cleaning nozzles
Install20-30 min DIY30-45 min DIY
Warm wateryesyes
Heated seatyesyes
Warm air dryernoyes
Wireless remotenono
Night lightyesyes
Deodorizernono
Self-cleaning nozzleyesyes
Feminine washyesyes
Warranty1-year full1-year limited

What owners say

Bio Bidet BB-500

  • +Instant heater means warm water never runs out — at $199 that undercuts every tank-heater rival like the SmartBidet SB-1000 that goes cold in ~30 seconds
  • +At roughly 3.5 inches it's one of the lowest-profile electric seats sold, closer to a normal toilet seat than the tall wedge look of the BB-1000 or USPA 6800U
  • +Single knob control is genuinely elderly- and guest-proof: turn for pressure, press to switch washes — no remote to lose or misread
  • +Dedicated front/feminine wash plus turbo and massage modes, coverage the similarly priced Toto Washlet A2 charges more for
  • +Mechanical backup lets you keep washing (ambient temperature) during a power outage — rare at any price
  • +Dual self-cleaning nozzles rinse before and after each use, and owners note less splatter buildup than single-wand budget seats
  • −No dryer at all — Bio Bidet reserves it for the $229 BB-550, so budget for TP either way
  • −Instant heater runs warm, not hot: multiple Amazon reviewers say max temperature is 'pleasantly tepid,' noticeably cooler than the BB-2000's hybrid system
  • −Elongated only, with no round version even planned
  • −No deodorizer, no remote, no user presets — the knob resets to whatever the last person dialed in
  • −Spray pressure is modest — fine for daily use, but forum pressure-chasers call it a step down from the BB-1000's firehose
  • −Some early units developed clicking valves or dead heaters inside a year, a recurring theme in owner reviews
  • −1-year warranty feels thin for a seat you hope lasts five, and Bemis support requires the original receipt

Bemis Renew Wash

  • +Unlimited tankless warm water at $199 - the Alpha iX Pure charges $299 and the SmartBidet SB-2600 $300 for the same core tech
  • +Stocked in the aisle at Home Depot nationwide: see it, buy it, return it, no drop-ship gamble
  • +Warm-air dryer and night light included at a price where most rivals strip both
  • +Bemis makes more toilet seats than anyone in the US - the hinge fit and seat feel beat Korean imports at twice the price
  • +Antimicrobial seat material is a genuine differentiator no other seat we track offers
  • +Backed by the same parent company as Bio Bidet, so parts and support have a real US organization behind them
  • −Side panel only - no remote at any price, and no wall-mountable control option
  • −No deodorizer, the clearest cut versus the $279 SmartBidet SB-1000's carbon filter
  • −Only a few dozen reviews so far — promising, but young compared to battle-tested Bio Bidet lines
  • −1-year warranty is half what Brondell gives the similarly priced Swash 300
  • −No user presets or child mode - settings reset to whoever adjusted last
  • −Dryer is entry-grade and slow, in line with everything under $350

Amazon links may earn us a commission. Prices are approximate and may differ on the retailer’s site.