HearSmartindependent rankings

Review · Home & living

LG SIGNATURE LUDP8908SN review

LG's premium 38 dB top-control dishwasher with TrueSteam, four spray arm QuadWash and a Textured Steel finish.

By the HearSmart research desk · Updated November 8, 2026

Performance (40%)
8.9
Ease of use (25%)
8.5
Value (35%)
7.7

LG SIGNATURE LUDP8908SN is one of two machines on this list rated at 38 dB, which LG markets as LoDecibel operation. Its QuadWash system uses four spray arms rather than the usual two to reach dishes from more angles, and TrueSteam is meant to cut water spots on delicate loads, though LG bases that claim on its own 2018 testing of a different model. The third rack adjusts in height for long flatware or small cups, and Wi-Fi with the ThinQ app adds remote monitoring. The Textured Steel finish is the most design-forward front here, which suits a kitchen that is part of the living room. It ranks below the Samsung and Bosch picks on value: the LG page listed it at $1,999, the same as the Bosch Benchmark, and showed it temporarily out of stock for our ZIP code, so check a retailer before you plan around it. We compared documented features and published prices.

Who it is for

Design-led open kitchens that want the lowest noise rating and steam cleaning for glassware.

Price

See vendor pricing (USD check pending).

US price check pending. See the vendor pricing page.

Key features

  • LoDecibel operation rated at 38 dB
  • TrueSteam, which LG says reduces water spots
  • QuadWash with four spray arms instead of two
  • Height-adjustable 3rd rack
  • Wi-Fi and the ThinQ app

Strengths and weaknesses

  • Strength: Tied for the lowest noise rating on this list
  • Strength: Steam option aimed at spot-free glasses
  • Strength: Premium Textured Steel finish for a visible kitchen
  • Weakness: LG listed it at $1,999, the same as the Bosch Benchmark, but without a confirmed price check
  • Weakness: LG showed it temporarily out of stock for our test ZIP code
  • Weakness: LG's water spot claim is based on its own 2018 testing

Key facts

  • Noise rating: 38 dB
  • Spray arms: Four (QuadWash)
  • Steam: TrueSteam
  • Model: LUDP8908SN

Where it ranks

LG SIGNATURE LUDP8908SN is No. 4 in our Best Quiet Dishwashers verdict.

Alternatives we scored

Visit lg.com · Questions or corrections: editorial@hearsmart.org