What is the best monitor arm for an ultrawide monitor?

The best monitor arm for most ultrawide monitors is the Ergotron HX. It’s the safest pick for large ultrawide, super-ultrawide, and heavy widescreen monitors because it’s specifically recommended for that use case and has a stronger reputation than typical budget arms.

If you’re mounting a 49-inch ultrawide on a tighter budget, look at the VIVO Heavy Duty arm. If you have an especially large or heavy display, such as up to 57 inches or 44 lb, the ULTRARM Heavy Duty is worth checking—but verify your monitor’s weight, VESA pattern, desk thickness, and curve clearance before buying.