How to Choose a Monitor Arm
A good monitor arm can transform your desk setup, but picking the right one requires attention to a few key details.
1. Weight Capacity and Monitor Compatibility This is the most critical factor. Check your monitor’s weight (including the VESA adapter if needed) and make sure the arm can support it comfortably. A good rule of thumb is to choose an arm rated for at least 2kg more than your monitor weighs. For ultrawide monitors, you will need an arm with a higher weight capacity, typically 9kg or more.
2. Adjustment Range and Mechanism Gas spring arms offer smooth, tool-free height adjustment and hold position reliably at any point in their range. Mechanical spring arms are typically cheaper but may require an Allen key to adjust tension. Consider the full range of motion: height adjustment, forward/backward reach, tilt, swivel, and rotation. More adjustment options mean better ergonomics.
3. Clamp and Mounting Quality Most monitor arms attach to your desk via a C-clamp or grommet mount. Make sure the clamp fits your desk thickness (measure it before buying). A sturdy clamp with protective pads prevents damage to your desk surface. If your desk is thin or made of particle board, consider using the grommet mount option for a more secure installation.
Monitor Arm Comparison Table
| Product | Price Range | Weight Capacity | Mount Type | Mechanism | VESA | Screen Size |
|---|---|---|---|---|---|---|
| Ergotron LX | ~$130 | 3.2-11.3kg | Clamp/Grommet | Gas Spring | 75/100 | Up to 34" |
| Amazon Basics Monitor Arm | ~$110 | 2.3-11.3kg | Clamp/Grommet | Gas Spring | 75/100 | Up to 32" |
| HUANUO Gas Spring | ~$40 | 1-8kg | Clamp/Grommet | Gas Spring | 75/100 | 13-32" |
| VIVO Single Arm | ~$30 | Up to 8kg | Clamp/Grommet | Mechanical | 75/100 | 13-27" |
| ErGear Monitor Arm | ~$25 | 1-8kg | Clamp/Grommet | Gas Spring | 75/100 | 13-32" |
Product Details
1. Ergotron LX — Best Overall Monitor Arm
The Ergotron LX is the industry benchmark for monitor arms. The gas spring mechanism is silky smooth and holds position perfectly, even with heavy monitors. It supports up to 11.3kg, making it suitable for large 4K displays and 34-inch ultrawides. The build quality is exceptional — the LX feels solid and premium in a way that cheaper alternatives simply cannot match. Cable management is well thought out, keeping your setup clean. If you want the best and plan to use it for years, this is the one.
2. Amazon Basics Monitor Arm — Best Premium Alternative
The Amazon Basics Monitor Arm is actually manufactured by Ergotron and shares much of the same design DNA as the LX. It offers the same smooth gas spring mechanism and robust 11.3kg weight capacity at a slightly lower price. The main differences are minor cosmetic details and packaging. If you want Ergotron-quality performance and do not mind the Amazon branding, this is a smart way to save a little.
3. HUANUO Gas Spring Monitor Arm — Best Mid-Range Value
The HUANUO Gas Spring arm delivers surprisingly smooth performance at a fraction of the Ergotron’s price. The gas spring mechanism works well for monitors up to 8kg, and the full range of tilt, swivel, and rotation adjustments lets you dial in your perfect viewing angle. The built-in cable management channel keeps things tidy. At around $40, it offers the best balance of quality and affordability for standard-sized monitors.
4. VIVO Single Arm — Most Popular Budget Pick
VIVO’s single arm monitor mount has earned its popularity through sheer reliability at an unbeatable price. The mechanical spring design is simple but effective, and while height adjustment requires an Allen key, once set, it holds rock-solid. For users with a standard 24-27 inch monitor who just want to free up desk space and get their screen to the right height, this is all you need. It is hard to argue with the results at just $30.
5. ErGear Monitor Arm — Best Budget Gas Spring
The ErGear Monitor Arm manages to include a gas spring mechanism at a price that most competitors charge for a basic mechanical arm. At around $25, it offers smooth, tool-free height adjustment and supports monitors up to 8kg. The build quality is understandably not on par with premium options, but for the price, it delivers excellent value. If you want the convenience of gas spring adjustment without spending much, this is a remarkable deal.
Summary
If you can only pick one, go with the Ergotron LX. It is the gold standard for monitor arms, with unmatched build quality, smooth adjustment, and the weight capacity to handle virtually any monitor including large ultrawides. If you want similar quality for less, the Amazon Basics Monitor Arm is essentially the same product at a lower price. Budget buyers should look at the HUANUO Gas Spring arm for the best value with gas spring convenience, or the ErGear Monitor Arm if you want to spend as little as possible while still getting smooth height adjustment.