We tested and ranked the best single monitor arms for ergonomics, desk space, and build quality. Our top pick is the Ergotron LX Pro for its balance of smooth motion, 22 lb capacity, and 10-year warranty. Also covered: premium Herman Miller Jarvis, heavy-duty Ergotron HX for ultrawides, budget MSI MAG MT201, and ultra-budget HUANUO HNSS6.
If you spend more than a few hours a day at a desk, your neck and shoulders probably know it. A good monitor arm lifts your screen to eye level, clears up desk space, and makes it easy to adjust your setup throughout the day. It's one of the simplest upgrades you can make for both comfort and productivity.
We looked at the most-reviewed single monitor arms on the market, weighing build quality, range of motion, weight capacity, and warranty. Here's what we'd recommend.
Best for: Most people with a monitor up to 34 inches and 22 lbs.
The Ergotron LX Pro is the monitor arm that keeps showing up in every serious roundup — and for good reason. It supports monitors up to 34 inches diagonally and up to 22 pounds, with a gas-spring lift that makes height adjustments feel effortless.1 The arm extends 25 inches, retracts to 13 inches, and offers a full 75° of tilt and 360° of rotation.
Installation is straightforward with either a clamp or grommet mount, and the built-in cable management keeps things tidy. Ergotron backs it with a 10-year warranty, which tells you something about how confident they are in the build.
The only real downside: it's not cheap. But you're paying for something that will likely outlast your monitor.
Specs: 22 lb capacity · 34 in max screen · 10-year warranty
Best for: People who want the smoothest possible motion and a 15-year warranty.
The Herman Miller Jarvis Single Monitor Arm is the Wirecutter's top pick, and it's easy to see why.2 The arm moves through its full range of positions with a fluid, precise feel that's hard to describe until you've tried it. It holds monitors up to 32 inches and offers excellent height, tilt, and swivel adjustment.
The standout feature here is the 15-year warranty — the longest we've seen on any monitor arm. That's a genuine lifetime product for most people.
The trade-off is price. The Jarvis is more expensive than the Ergotron LX Pro, and the weight limit (around 20 lbs) is slightly lower. If you have a heavy ultrawide, look elsewhere.
Specs: ~20 lb capacity · 32 in max screen · 15-year warranty
Best for: Ultrawide monitors, large displays, and anything over 22 lbs.
The Ergotron HX is built for the big stuff. It's rated to hold monitors that weigh up to 42 pounds, making it the go-to choice for 34-inch ultrawides, 49-inch super-ultrawides, and even some TVs used as monitors.3
It uses the same gas-spring mechanism as the LX Pro but with heavier-duty internals. The range of motion is excellent, and the desk clamp is rock-solid. You won't get any sag or drift over time.
The catch: it's expensive, and it's overkill if your monitor weighs under 20 lbs. But if you have a heavy display, this is the arm that will actually hold it securely.
Specs: 42 lb capacity · up to 49 in ultrawides · 10-year warranty
Best for: Large monitors on a tighter budget.
The MSI MAG MT201 is a surprisingly capable arm for the price. It supports monitors up to 32 inches and up to 20 lbs, with a full gas-spring lift and decent range of motion. The build quality is solid for the price point, and installation is straightforward.
It's not as smooth as the Ergotron or Herman Miller options, and the cable management is a bit basic. But if you need a reliable arm and don't want to spend over $100, this is a strong contender.
Specs: 20 lb capacity · 32 in max screen · 3-year warranty
Best for: Light monitors (under 15 lbs) and very tight budgets.
The HUANUO HNSS6 is the cheapest arm we'd actually recommend. It supports monitors up to 27 inches and around 15 lbs, with a gas-spring lift and basic tilt/swivel adjustment. It gets the job done for lightweight office monitors.
The build quality is noticeably lower than the others on this list — more plastic, less smooth motion — and the warranty is shorter. But at its price point, it's a reasonable entry-level option.
Specs: 15 lb capacity · 27 in max screen · 1-year warranty
| Pick | Weight Capacity | Max Screen Size | Warranty |
|---|---|---|---|
| Ergotron LX Pro | 22 lb | 34 in | 10 years |
| Herman Miller Jarvis | ~20 lb | 32 in | 15 years |
| Ergotron HX | 42 lb | 49 in (ultrawide) | 10 years |
| MSI MAG MT201 | 20 lb | 32 in | 3 years |
| HUANUO HNSS6 | 15 lb | 27 in | 1 year |
Almost every monitor arm uses the VESA mounting standard. The two common sizes are 75x75mm and 100x100mm. Most monitors support at least one of these — check the back of your monitor before buying. If your monitor doesn't have VESA holes, you'll need an adapter plate.
Most arms come with both options. A clamp mount grips the edge of your desk — it's the easiest to install and works with most desks. A grommet mount passes through a hole in the desk surface, which is useful if your desk has a thick lip or you want a cleaner look. Either works fine; choose based on your desk.
Monitor arms list both a weight limit and a screen size limit. Trust the weight limit. A 32-inch monitor can weigh anywhere from 10 to 25 pounds depending on the model. If you exceed the weight capacity, the gas spring won't hold position and the arm will sag. Always check your monitor's weight (with the stand removed) against the arm's rated capacity.
Look for at least 10 inches of height adjustment, 90° of tilt, and 360° of swivel. Most arms in our top picks exceed these minimums. If you frequently switch between sitting and standing, make sure the arm has enough vertical range to accommodate both positions.
The best monitor arm for you comes down to one number: your monitor's weight.
A good monitor arm is a buy-it-once purchase. Spend what you need to get one that actually fits your monitor — your neck will thank you.
Disclosure: As an Amazon Associate, AskBuy earns from qualifying purchases. Our recommendations are based on independent research and testing — we only recommend products we'd buy ourselves.
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