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Head-to-head · Best Dual Monitor Arms

Ergotron HX Dual vs Ergotron LX Dual

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

Ergotron LX Dual comes out ahead by a narrow margin (4.7 vs 4.8). The gap is mostly about office and home-office users with standard 24-27" monitors who want set-and-forget durability — read the strengths below before deciding.

Ergotron HX Dual
Ranked #2 in Best Dual Monitor Arms
Ergotron HX Dual
$585

The HX Dual is the heavy-display pick. Built for ultrawide monitors over 30 lbs that the LX can't support. Quick-release head and pro-grade clamp. Best for video editors, traders, and developers with 32"+ professional displays.

Strengths
  • — Built for ultrawides over 30 lbs and TVs used as monitors
  • — Quick-release head — swap monitors in seconds
  • — Heavy-duty desk clamp + 10-year warranty
Watch-outs
  • — Most expensive pick at $585
  • — Overkill for standard 24-27" displays
  • — Substantial desk-edge footprint
$585 · Check Price on AmazonFull review →
Ergotron LX Dual
Higher ratedRanked #1 in Best Dual Monitor Arms
Ergotron LX Dual
$330

The LX Dual is the best-overall pick. Industry-standard against which every other dual arm is compared — Ergotron's Constant Force spring and 10-year warranty are unmatched. Best for office workers and desktop power users who'll set and forget for 10+ years.

Strengths
  • — Constant Force spring tech holds position perfectly across thousands of adjustments
  • — 10-year warranty — industry's longest
  • — Side-by-side arm supports two displays up to 27"
Watch-outs
  • — $330 is the most expensive non-HX pick
  • — 27" / 20-lb max per monitor — won't fit modern 32" ultrawides
  • — Installation is heavier than budget arms (more parts)
$330 · Check Price on AmazonFull review →

How they stack up

Ergotron HX Dual

Most expensive. Heaviest supported displays. Overkill for standard monitors. Matching decade-long warranty alongside Ergotron LX Dual.

Ergotron LX Dual

Industry-standard. Cheaper than Ergotron HX. More premium than VIVO or Amazon Basics. 27" max vs HX's 32".

Specs side-by-side

SpecErgotron HX DualErgotron LX Dual
Max Monitor32"+ / 30+ lb each27" / 20 lb each
Warranty10-year10-year
FeatureQuick-release head—
MountHeavy-duty clampDesk clamp + grommet
Spring—Constant Force
← See the full ranking of best dual monitor arms