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Ergotron LX Pro Desk Monitor ArmvsHUANUO FlowLift Single Monitor Arm (HNSS6)

Ergotron LX Pro Desk Monitor Arm edges HUANUO FlowLift Single Monitor Arm (HNSS6), 8.5 to 7.7. The 4 axes split 3-1, widest on Durability at 2.0.

Ergotron LX Pro Desk Monitor Arm

Ergotron

8.5

The arm cheaper ones copy, rebuilt in 2025 with a lower weight ceiling than the original LX.

Price and availability change constantly, so we don't quote them here — the link opens current listings on Amazon.

HUANUO FlowLift Single Monitor Arm (HNSS6)

HUANUO

7.7

A gas-spring arm for pocket change that moves smoothly. The cable covers are where it feels cheap.

Price and availability change constantly, so we don't quote them here — the link opens current listings on Amazon.

Where they diverge

The widest gap is Durability, Ergotron LX Pro Desk Monitor Arm ahead 9.0 to 7.0. They come closest on Ease of use, 8.6 to 7.8. Left of center is Ergotron LX Pro Desk Monitor Arm, right is HUANUO FlowLift Single Monitor Arm (HNSS6).

Ergotron LX Pro Desk Monitor Arm versus HUANUO FlowLift Single Monitor Arm (HNSS6) — axis scores out of 10Horizontal bar chart of editorial scores out of 10 across 4 axes. Bars for Ergotron LX Pro Desk Monitor Arm run left from the axis labels, bars for HUANUO FlowLift Single Monitor Arm (HNSS6) run right. Ergotron LX Pro Desk Monitor Arm: Value 7.7, Durability 9.0, Ease of use 8.6, Design 8.6. HUANUO FlowLift Single Monitor Arm (HNSS6): Value 9.0, Durability 7.0, Ease of use 7.8, Design 7.0.Ergotron LX Pro Desk Monitor Arm (left)HUANUO FlowLift Single Monitor Arm (HNSS6) (right)ValueErgotron LX Pro Desk Monitor Arm — Value 7.7 out of 107.7HUANUO FlowLift Single Monitor Arm (HNSS6) — Value 9.0 out of 109.0DurabilityErgotron LX Pro Desk Monitor Arm — Durability 9.0 out of 109.0HUANUO FlowLift Single Monitor Arm (HNSS6) — Durability 7.0 out of 107.0Ease of useErgotron LX Pro Desk Monitor Arm — Ease of use 8.6 out of 108.6HUANUO FlowLift Single Monitor Arm (HNSS6) — Ease of use 7.8 out of 107.8DesignErgotron LX Pro Desk Monitor Arm — Design 8.6 out of 108.6HUANUO FlowLift Single Monitor Arm (HNSS6) — Design 7.0 out of 107.0Editorial score out of 10 — higher is better

Which one to pick

Take the Ergotron LX Pro Desk Monitor Arm

Leads on Durability, Ease of use and Design.

  • A single monitor you move several times a day, between sitting and standing
  • You want the arm to outlast the next two monitors
  • Deep desks, where 25 inches of reach lets the screen come forward

Take the HUANUO FlowLift Single Monitor Arm (HNSS6)

Leads on Value.

  • Your first monitor arm, for a standard 24 to 27 inch screen
  • Thick desktops that some clamps cannot open wide enough for

What each one gets wrong

Ergotron LX Pro Desk Monitor Arm

  • Your monitor is over 22 pounds, which includes many large ultrawides
  • You are replacing an old LX and assumed the same 25-pound rating carries over

HUANUO FlowLift Single Monitor Arm (HNSS6)

  • Tidy cable routing matters to you
  • You want an arm that will still hold tension a decade from now

Specs, side by side

SpecErgotron LX Pro Desk Monitor ArmHUANUO FlowLift Single Monitor Arm (HNSS6)
Monitor weight4 to 22 lb4.4 to 19.8 lb
Screen sizeUp to 34 in13 to 32 in
VESA75 x 75, 100 x 10075 x 75, 100 x 100
MechanismConstant Force (mechanical spring)Gas spring
Lift / reach13 in lift, up to 25 in extension—
Tilt+70° / -15°+80° / -50°
MountingTwo-piece clamp or grommetC-clamp for 0.59 to 3.54 in desks, or grommet
Warranty10 years—
Lift—Up to 15.75 in
Extras—USB ports on the base

Rankings they both appear in

Questions

Ergotron LX Pro Desk Monitor Arm or HUANUO FlowLift Single Monitor Arm (HNSS6) — which should I buy?
Ergotron LX Pro Desk Monitor Arm leads on Durability, Ease of use and Design. If Value matters more to you, take the HUANUO FlowLift Single Monitor Arm (HNSS6) instead.
Is 0.8 a real difference?
Barely. Ergotron LX Pro Desk Monitor Arm averages 8.5 and HUANUO FlowLift Single Monitor Arm (HNSS6) averages 7.7, and the total is the plain average of 4 axes, so 0.8 is what one axis moving 3.2 looks like after averaging. The axis split, 3-1, tells you more.
Which one ranks higher in "Monitor arms: the weight rating decides before the brand"?
Ergotron LX Pro Desk Monitor Arm sits at #1 in "Monitor arms: the weight rating decides before the brand", HUANUO FlowLift Single Monitor Arm (HNSS6) at #4.