Head-to-head · Best Dual Monitor Arms

Ergotron HX Dual vs Monoprice Workstream Dual Monitor Arm

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 HX Dual comes out ahead by a clear margin (4.6 vs 4.1). The gap is mostly about Buyers running large or heavy monitors and ultrawides who need maximum weight capacity and premium build. — read the strengths below before deciding.

Higher ratedRanked #2 in Best Dual Monitor Arms

Ergotron HX Dual

4.6

$539as of Jun 7

The Ergotron HX Dual is the heavy-duty choice: a premium arm built to carry large, heavy monitors and ultrawides that would overload a standard LX. Reviewers praise its top-notch materials, finish, and engineering, with a 10-year warranty to match. It is the most expensive arm here and overkill for light setups, and reviewers note a touch of wiggle in the mounts, but for big-screen, high-mass dual configurations it is the most capable option.

Strengths

— Heavy-duty design supports large, heavy monitors and ultrawides
— Even nicer finish and materials than the standard LX, per reviewers
— Handles substantially more weight per arm than the LX Dual

Watch-outs

— Most expensive arm in this group by a wide margin
— Reviewers note slight wiggle between the monitor mounts and arms
— Vertical stroke may be short for very tall users

$539 · Check Price on Amazon Full review →

Ranked #4 in Best Dual Monitor Arms

Monoprice Workstream Dual Monitor Arm

4.1

$84.32as of Jun 7

The Workstream by Monoprice Dual is the budget gas-spring pick: PCWorld names it the best budget dual arm, noting it costs about four times less than the Ergotron LX Side-by-Side while supporting monitors up to 34 inches and 19.8 lbs per arm. Its steel-and-aluminum build is sturdier than all-plastic stands, but setup is awkward and the motion isn't as smooth as premium arms. For a low-cost full-motion dual setup, it is a sensible value choice.

Strengths

— Roughly four times cheaper than the Ergotron LX Side-by-Side
— Gas-spring counterbalance handles monitors up to 34 inches
— Steel-and-aluminum construction is sturdier than all-plastic stands

Watch-outs

— Setup is difficult and operation isn't as smooth as premium arms
— Gas springs can need re-tensioning over time
— Finish and feel are clearly budget-grade

$84.32 · Check Price on Amazon Full review →

How they stack up

Ergotron HX Dual

The HX Dual is the heavy-duty step up from the Ergotron LX Dual, carrying far more weight per arm and handling larger monitors and ultrawides that would exceed the LX's rating. It is markedly pricier than the LX Dual, HUANUO DS12, Monoprice Workstream Dual, and VIVO STAND-V002, and is overkill for the standard dual-27-inch setups those arms target.

Monoprice Workstream Dual Monitor Arm

The Monoprice Workstream Dual is the budget gas-spring alternative, far cheaper than the Ergotron LX Dual and Ergotron HX Dual and lighter-duty than the HUANUO DS12. PCWorld pegs it at roughly a quarter the price of the Ergotron LX Dual. It offers true gas-spring motion that the mechanical-spring VIVO STAND-V002 lacks, though its build and smoothness trail the metal arms above it.

Specs side-by-side

Spec	Ergotron HX Dual	Monoprice Workstream Dual Monitor Arm
Construction	Aluminum + steel	Steel + aluminum
Weight Capacity	10-35 lb per arm	Up to 19.8 lb per arm
Monitor Size	Up to 32" each	15-34" each
Motion	Full lift, tilt, pan, rotate	Gas-spring full motion
Design	Heavy-duty single pole	—
Mount	C-clamp / grommet options	C-clamp + grommet
Finish	Black, white, polished aluminum	—
Warranty	10 years	—
Adjustment	—	Height, tilt, pan, rotate
VESA	—	75x75 / 100x100
Collection	—	Workstream by Monoprice

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