Single Monitor Arm

For a budget arm, the HUANUO Single is sturdier than its price suggests. It uses a double-spring gas mechanism in an aluminum-alloy body, and the extra spring helps it hold heavier screens steadily — owners consistently report a solid, planted feel even with larger monitors, which is not a given at this price. HUANUO also backs it with a 5-year warranty, generous for the budget tier and a meaningful step up from the coverage many cheap arms offer.

It earns a green 7.5 rather than more for the reasons that separate budget arms from the premium tier: like the other affordable arms here, it relies on a gas cylinder, which can lose tension over years of daily use where a mechanical Constant-Force spring holds indefinitely. And while the build is good, the materials and finish don’t reach the refinement of the Ergotron or Herman Miller arms. For its class, though, this is a confident, well-supported arm — and the 5-year warranty softens the gas-spring concern.

Bottom line on stability: A sturdier-than-expected double-spring build with a generous 5-year warranty. Held back from higher only by the gas mechanism and budget materials.

The HUANUO offers a genuinely wide range of motion: roughly 18.5 inches of height travel and 18.3 inches of extension, plus tilt from +85° to −30°, swivel, and full 360° rotation into portrait. That height range is among the most generous in the lineup — even exceeding the Ergotron LX’s 13″ on paper — and the long reach makes it flexible on a deep desk. For dialing in an ergonomic position, it gives you plenty to work with.

It scores a solid green 8.0 because, while the range is broad, the gas-spring movement isn’t quite as precisely damped or effortless as a mechanical Constant-Force arm, and the feel can shift subtly as the cylinder ages. But for the money, the combination of long lift, long reach, and full articulation is a strong showing — and a real reason to consider it over thinner budget arms.

Bottom line on motion: Unusually generous lift and reach for a budget arm, with full tilt, swivel, and portrait rotation. The gas-spring feel is good rather than premium.

This is the HUANUO Single’s headline, and it’s a genuine standout: it’s rated to hold up to 26.4 pounds and screens from 13″ all the way to 40″, on standard 75×75 or 100×100 mm VESA. That weight ceiling is higher than our #1 Ergotron LX’s 25 pounds, and the 40″ screen rating means it comfortably mounts large ultrawides that arms like the North Bayou F80 (30″, 19.8 lb) simply can’t.

It earns a strong 8.0 — the highest capacity score among the budget arms in our lineup. The only reason it isn’t higher is that it stops short of true heavy-duty territory: the Ergotron HX (49″, 42 lb) and Herman Miller Flo X (43″, 40 lb) reach further for the largest and heaviest professional displays. But for the overwhelming majority of monitors — including big curved ultrawides that budget shoppers are often told they need a premium arm for — the HUANUO has the capacity, and that’s its single best argument.

Bottom line on capacity: Up to 26.4 lb and 40″ — more weight than the Ergotron LX and enough for large ultrawides. The most capable budget single in our rankings.

The HUANUO includes both a C-clamp and a grommet mount, and the clamp’s range is notably wide — it fits desktops up to about 3.15 inches thick, more accommodating than several pricier arms (including the Amazon Basics arms, which top out near 2.4″). That’s a practical advantage for thick or unusual desks. Setup is straightforward, with the clear instructions and complete hardware that have helped make HUANUO a popular budget choice.

It scores 8.0, matching the premium arms here on the basics. The reasons it isn’t higher are the lighter-duty feel of the clamp hardware and the lack of the broader wall-mount and multi-configuration ecosystem the Ergotron brands offer. For a standard single-monitor desk install, though, it’s quick and flexible — the wide clamp range in particular is a genuine plus.

Bottom line on installation: Clamp and grommet included, with an unusually wide clamp range (to 3.15″) that suits thick desks — easy, flexible setup.

Cable management is where the HUANUO’s budget priorities show, and it’s the arm’s one amber mark. It includes integrated cable clips that run cords along the arm, so it’s a step above arms that ignore cabling entirely — but the implementation is basic, holding fewer cables less securely than the better-integrated channels on the premium arms, and cables can work loose as the arm moves through its full range.

The 6.5 reflects that it’s present and functional rather than a strength. For most desks it keeps cords reasonably tidy, but if a perfectly clean, fully managed cable run matters to you, this is the category where the HUANUO gives ground to keep its price low — an understandable trade given everything it delivers elsewhere.

Bottom line on cables: Basic integrated clips — functional and better than nothing, but the weakest of its categories and a step below the premium arms’ routing.

Value is the HUANUO Single’s strongest category, and it earns a 9.0. The case is simple and hard to argue with: you get more weight capacity than our #1 arm, support for 40″ ultrawides, a wide adjustment range, and a 5-year warranty — all at a budget price. For a shopper who specifically needs to mount a large or heavy screen without paying for an Ergotron HX or Herman Miller Flo X, the HUANUO is the arm that makes that possible cheaply, and that’s a genuinely valuable niche.

The honest framing: it’s not the cheapest arm here — the North Bayou F80 undercuts it — and it’s not the most refined. If you have a standard 24″ to 27″ monitor and want the lowest price, the F80 is the call; if you’d rather step up to a mechanical Constant-Force spring, the Ergotron-built Amazon Basics arm is the move. But for capacity-per-dollar, especially with a larger or heavier screen, nothing in our lineup beats the HUANUO. It’s why it out-ranks the cheaper F80 despite a lower stability score — the extra capability and longer warranty are worth real points.

Bottom line on value: Outstanding capacity-per-dollar — more weight and screen support than far pricier arms, plus a 5-year warranty. The budget pick when you need to mount something big or heavy.