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Best Monitor Arms: Ergotron, Uplift, Secretlab, Vari & Haworth (2026)

We compare 9 single monitor arms from Ergotron, Uplift, Secretlab, Vari and Haworth on the figures each maker publishes: the heaviest monitor it holds, the largest screen it's rated for, how far it moves up and down, how far it reaches and the warranty. Metric figures are converted to inches and pounds. Humanscale, Branch, Flexispot and Amazon Basics arms are left out because we couldn't read a maker spec sheet with these numbers.

Updated 2026-11-129 products compared5 scored criteriaHow this ranking works

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Top pick

Ergotron HX Desk Monitor Arm

Score 8.2/10 · Check price

Why it wins: Heavy-duty arm for up to 42 lb and 49". Top max monitor weight in this comparison (42 lb).

Also great: Secretlab Magnus Monitor Arm (Heavy Duty) (5.9) · Ergotron LX Desk Monitor Arm (5.8)

8.2/10
Check price at Amazon See pros, cons & specs

Side-by-side comparison

Swipe sideways on mobile. Green marks the best figure in each column.

Product Score Max monitor weightHeight adjustmentMax screen sizeReach Best for Price Buy
1Ergotron HX Desk Monitor Arm
8.2/10
42 lb11.5 in49 in23.6 in Heavy-duty arm for up to 42 lb and 49" Check price View deal
2Secretlab Magnus Monitor Arm (Heavy Duty)
5.9/10
35.2 lb10.4 in57 in20.9 in For 34–57" screens up to 35.2 lb Check price View deal
3Ergotron LX Desk Monitor Arm
5.8/10
25 lb13 in34 in25 in The classic arm: 25 lb, 13" of lift Check price View deal
4Uplift Crestview Single Monitor Arm
5.3/10
33 lbNot listedNot listed20.7 in 33 lb capacity, 15-year warranty Check price View deal
5Uplift Range-X Single Monitor Arm
5.2/10
17.6 lb13.2 inNot listed26.3 in Longest reach here at 26.3" Check price View deal
6Haworth Belong Single Monitor Arm
3.6/10
24.25 lb11.4 in34 inNot listed 24.25 lb, 11.4" of height travel Check price View deal
7Uplift Enfield Single Monitor Arm
3.3/10
19.8 lb9.8 inNot listed18.3 in Spring arm with 9.8" of height travel Check price View deal
8Vari Single-Monitor Arm
3.3/10
19.8 lbNot listed27 inNot listed Lifetime warranty, modular design Check price View deal
9Secretlab Magnus Monitor Arm
3.0/10
17.6 lb11.6 in34 in20.3 in Magnetic cable management, up to 34" Check price View deal

"Not listed" means the manufacturer page we used does not publish that figure. Prices show "Check price" until a retailer feed provides a current price.

Every monitor arm, ranked

#1 · Top pick

Ergotron HX Desk Monitor Arm

Best for: Heavy-duty arm for up to 42 lb and 49"

8.2/10

What we like

  • Top max monitor weight in this comparison (42 lb)

Watch out for

    Score breakdown

    Max monitor weight 35%
    Max screen size 15%
    Height adjustment 20%
    Reach 15%
    Warranty 15%
    Max monitor weight42 lb
    Max screen size49 in
    Height adjustment11.5 in
    Reach23.6 in
    Warranty10 yr
    Weight range20–42 lb (9.1–19.1 kg)
    Typical screenUp to 49"
    Lift11.5" (29.2 cm)
    ExtensionUp to 23.6" (59.4 cm)
    PriceCheck price
    Check price at Amazon Full specs
    Specs source:
    #2

    Secretlab Magnus Monitor Arm (Heavy Duty)

    Best for: For 34–57" screens up to 35.2 lb

    5.9/10

    What we like

    • Top max screen size in this comparison (57 in)

    Watch out for

    • Warranty not published by Secretlab

    Score breakdown

    Max monitor weight 35%
    Max screen size 15%
    Height adjustment 20%
    Reach 15%
    Warranty * 15%

    * Not published by the manufacturer; scored at the lowest published value in this category, so an unpublished figure never outranks a published one.

    Max monitor weight35.2 lb
    Max screen size57 in
    Height adjustment10.4 in
    Reach20.9 in
    WarrantyNot listed
    Weight range8–16 kg (17.6–35.2 lb)
    Screen34"–57"
    Height range195–460 mm (10.4" travel)
    Reach530 mm (20.9")
    WarrantyNot published by the maker
    PriceCheck price
    Check price at Amazon Full specs
    Specs source:
    #3

    Ergotron LX Desk Monitor Arm

    Best for: The classic arm: 25 lb, 13" of lift

    5.8/10

    What we like

      Watch out for

        Score breakdown

        Max monitor weight 35%
        Max screen size 15%
        Height adjustment 20%
        Reach 15%
        Warranty 15%
        Max monitor weight25 lb
        Max screen size34 in
        Height adjustment13 in
        Reach25 in
        Warranty10 yr
        Weight range7–25 lb (3.2–11.3 kg)
        Typical screenUp to 34"
        Lift13" (33 cm)
        Extension25" (64 cm)
        PriceCheck price
        Check price at Amazon Full specs
        Specs source:
        #4

        Uplift Crestview Single Monitor Arm

        Best for: 33 lb capacity, 15-year warranty

        5.3/10

        What we like

          Watch out for

          • Max screen size not published by Uplift
          • Height adjustment not published by Uplift

          Score breakdown

          Max monitor weight 35%
          Max screen size * 15%
          Height adjustment * 20%
          Reach 15%
          Warranty 15%

          * Not published by the manufacturer; scored at the lowest published value in this category, so an unpublished figure never outranks a published one.

          Max monitor weight33 lb
          Max screen sizeNot listed
          Height adjustmentNot listed
          Reach20.7 in
          Warranty15 yr
          Weight range2.2–33 lb
          Side extension20.7"
          Screen sizeNot published by the maker
          Height adjustmentNot published by the maker
          PriceCheck price
          Check price at Amazon Full specs
          Specs source:
          #5

          Uplift Range-X Single Monitor Arm

          Best for: Longest reach here at 26.3"

          5.2/10

          What we like

          • Top height adjustment in this comparison (13.2 in)
          • Top reach in this comparison (26.3 in)

          Watch out for

          • Lowest max monitor weight in this comparison (17.6 lb)
          • Max screen size not published by Uplift

          Score breakdown

          Max monitor weight 35%
          Max screen size * 15%
          Height adjustment 20%
          Reach 15%
          Warranty 15%

          * Not published by the manufacturer; scored at the lowest published value in this category, so an unpublished figure never outranks a published one.

          Max monitor weight17.6 lb
          Max screen sizeNot listed
          Height adjustment13.2 in
          Reach26.3 in
          Warranty15 yr
          Weight range3.75–17.6 lb
          Height range8.5"–21.7" (desk to VESA center)
          Forward reach26.3"
          Tilt135°
          PriceCheck price
          Check price at Amazon Full specs
          Specs source:
          #6

          Haworth Belong Single Monitor Arm

          Best for: 24.25 lb, 11.4" of height travel

          3.6/10

          What we like

            Watch out for

            • Reach not published by Haworth
            • Warranty not published by Haworth

            Score breakdown

            Max monitor weight 35%
            Max screen size 15%
            Height adjustment 20%
            Reach * 15%
            Warranty * 15%

            * Not published by the manufacturer; scored at the lowest published value in this category, so an unpublished figure never outranks a published one.

            Max monitor weight24.25 lb
            Max screen size34 in
            Height adjustment11.4 in
            ReachNot listed
            WarrantyNot listed
            Weight capacity24.25 lb
            ScreenUp to 34"
            Height adjustment11.4"
            ReachNot published by the maker
            PriceCheck price
            Check price at Amazon Full specs
            Specs source:
            #7

            Uplift Enfield Single Monitor Arm

            Best for: Spring arm with 9.8" of height travel

            3.3/10

            What we like

              Watch out for

              • Max screen size not published by Uplift
              • Lowest height adjustment in this comparison (9.8 in)
              • Lowest reach in this comparison (18.3 in)

              Score breakdown

              Max monitor weight 35%
              Max screen size * 15%
              Height adjustment 20%
              Reach 15%
              Warranty 15%

              * Not published by the manufacturer; scored at the lowest published value in this category, so an unpublished figure never outranks a published one.

              Max monitor weight19.8 lb
              Max screen sizeNot listed
              Height adjustment9.8 in
              Reach18.3 in
              Warranty15 yr
              Weight range4.4–19.8 lb
              Height range8.7"–18.5" (desk to mount)
              Side extension18.3"
              Tilt80°
              PriceCheck price
              Check price at Amazon Full specs
              Specs source:
              #8

              Vari Single-Monitor Arm

              Best for: Lifetime warranty, modular design

              3.3/10

              What we like

              • Top warranty in this comparison (Lifetime)

              Watch out for

              • Lowest max screen size in this comparison (27 in)
              • Height adjustment not published by Vari
              • Reach not published by Vari

              Score breakdown

              Max monitor weight 35%
              Max screen size 15%
              Height adjustment * 20%
              Reach * 15%
              Warranty 15%

              * Not published by the manufacturer; scored at the lowest published value in this category, so an unpublished figure never outranks a published one.

              Max monitor weight19.8 lb
              Max screen size27 in
              Height adjustmentNot listed
              ReachNot listed
              WarrantyLifetime
              Weight capacity19.8 lb (9 kg)
              ScreenMost monitors up to 27"
              Rotation360°
              Height adjustmentNot published by the maker
              PriceCheck price
              Check price at Amazon Full specs
              Specs source:
              #9

              Secretlab Magnus Monitor Arm

              Best for: Magnetic cable management, up to 34"

              3.0/10

              What we like

                Watch out for

                • Lowest max monitor weight in this comparison (17.6 lb)
                • Lowest warranty in this comparison (3 yr)

                Score breakdown

                Max monitor weight 35%
                Max screen size 15%
                Height adjustment 20%
                Reach 15%
                Warranty 15%
                Max monitor weight17.6 lb
                Max screen size34 in
                Height adjustment11.6 in
                Reach20.3 in
                Warranty3 yr
                Weight range5.5–17.6 lb per arm
                Height adjustment295 mm (11.6")
                Reach515.7 mm (20.3")
                PriceCheck price
                Check price at Amazon Full specs
                Specs source:

                Buying guide: how to choose the right monitor arm

                Weigh your monitor without its stand

                Arms are rated by weight. Look up your monitor's weight without the stand and pick an arm whose range covers it. Too light, and a spring arm will drift up.

                Check desk thickness and clamp

                Clamp ranges differ by arm. Uplift's Range-X sheet lists desktops from 0.75" to 3.75" thick; Vari's C-clamp fits desks up to 1.5". Check yours before buying.

                Ultrawides need heavy-duty arms

                Large ultrawides can outweigh a standard arm's rating. The Ergotron HX (20–42 lb, up to 49") and Secretlab Magnus Heavy Duty (17.6–35.2 lb, 34–57") are rated for them.

                How this ranking is calculated

                Score = weighted average of normalised specs, out of 10. Full method

                Max monitor weightThe top of the maker's rated weight range. Heavier ultrawides and 32"+ monitors need more. Scale: 15 → 42 lb.
                35%
                Max screen sizeThe largest diagonal the maker rates the arm for. Ergotron notes weight matters more than size. Scale: 24 → 49 in.
                15%
                Height adjustmentTotal up-and-down travel. Where a maker gives a low and high point, we subtract. Scale: 8 → 14 in.
                20%
                ReachHow far the arm extends from its post; more reach lets you pull the screen closer or push it back. Scale: 15 → 27 in.
                15%
                WarrantyYears of coverage. Lifetime scores the same as 15 years. Scale: 1 → 15 yr.
                15%

                Frequently asked questions

                Why isn't the Amazon Basics arm here?

                We couldn't verify a maker spec sheet for it with the figures we rank on, so we left it out.

                Why does the Crestview score low on height adjustment?

                Uplift's Crestview sheet doesn't list a height range, so it scores as the lowest published figure.

                Top pick · 8.2/10Ergotron HX Desk Monitor Arm
                Check price