Last Updated: September 25, 2026
Putting an iMac on a monitor arm is one of the best ergonomic upgrades you can make, because Apple’s standard stand only tilts. It does not raise the screen, and on most desks the iMac sits several inches below a comfortable eye line. The complication is that iMacs do not come with standard VESA mounting holes unless you specifically order them that way. So the best monitor arm for an iMac depends first on which iMac you have and how it was configured, and only then on the arm itself. This guide sorts that out and lists what to look for in the arm.
📄 In This Review
Quick answer: For most people in 2026, the best monitor arm for imac is the 24-inch iMac (VESA version) — our #1 rated choice. See the full ranked comparison, alternatives and buying advice below.
Step 1: Check whether your iMac is VESA-ready
24-inch iMac (Apple silicon)
The 24-inch iMac is offered either with Apple’s stand or with a built-in VESA mount adapter, and you choose at the time of ordering. Apple prices the VESA version the same as the matching stand model. Apple’s setup guide says the mount must support at least 10 pounds (4.5 kg) and use a 100 mm hole pattern. Apple does not sell a kit to add VESA later, and reports differ on whether Apple will convert an existing unit, so check with Apple Support before counting on it.
Older 21.5 and 27-inch iMacs (2012 to 2020 slim design)
These also came in stand or VESA versions chosen at purchase. On the thin models, converting a stand unit is difficult because the stand’s attachment screws sit inside the display. Third-party adapters exist; some clamp around the existing stand hinge or the back of the case, others require opening the display. Read install requirements carefully and look at reviews from owners of your exact model year.
Apple Studio Display
If you pair a Mac mini or Mac Studio with an Apple display, the same rule applies: the Studio Display is offered with a VESA mount adapter option at purchase.
Step 2: Match the arm to the iMac’s weight and shape
See also: Home office trends for hybrid work 2026 • AI features in home office gadgets 2026
| Model | Approximate weight | Arm weight range to look for | Notes |
|---|---|---|---|
| 24-inch iMac (VESA version) | Roughly 9–10 lb; check Apple’s tech specs | Minimum below about 8 lb, maximum 15 lb or more | Very thin; the adapter sits flush on the back |
| 21.5-inch iMac (2012–2019) | Roughly 12 lb | Up to 17–20 lb | Check adapter type if not VESA edition |
| 27-inch iMac (2012–2020) | Roughly 19–21 lb | Up to 25 lb or more | Heavy for its size; many budget arms are too weak |
Weights vary slightly by configuration, and an adapter adds more, so always check the specific tech specs page for your model. The key point: the 24-inch iMac is light, and the 27-inch is heavy. They need different arms.
Arms that suit each iMac
For the 24-inch iMac
A gas-spring arm with a low minimum weight holds the light 24-inch iMac steadily. Counterbalance arms like the Ergotron LX are rated from 7 pounds, so they work but sit near the bottom of their range. Look for smooth tilt, because the iMac’s built-in camera means screen angle affects how you look on calls.
For the 27-inch iMac
You need a strong arm. Heavy-duty arms rated to 25 pounds or more, including Ergotron’s LX (7–25 lb) and its heavy-duty variants, are a common match. Stay a few pounds under the maximum, since adapters add weight, and remember that some arms lose lift range near their upper limit.
Things unique to mounting an iMac
- Cables move with it: an iMac has power, Ethernet (on some models via the power brick) and USB cables at the back. Leave slack at every arm joint so they do not tug on ports when you move the screen.
- Heat: iMacs vent through the back or bottom edge. Keep the arm’s VESA plate from blocking vents and do not push the iMac flat against a wall.
- Camera angle: raising the iMac brings the built-in camera to eye level, which makes video calls look better than the usual up-the-nose angle.
- Front-facing ports: once on an arm, the rear ports are harder to reach. A small USB-C hub on the desk makes daily plugging easier.
- Rotation: portrait rotation is possible on arms, but check cable lengths first; macOS will rotate the display in System Settings.
Arm alternatives if your iMac is not VESA
If you have a stand model and do not want to risk an adapter, a sturdy monitor riser under the stand is the simplest fix. Raise it until the top of the screen sits at or slightly below eye level; a 3 to 5-inch riser is typical. It will not give you swing or depth adjustment, but it solves the most important problem, height.
FAQ
Can I add a VESA mount to my 24-inch iMac after buying it?
Apple sells the VESA version only as a configure-at-purchase option and does not offer a retrofit kit. Some owners report Apple service can swap it, but that is not officially documented, so contact Apple Support. Otherwise, third-party adapters or a riser are the alternatives.
Will any VESA monitor arm fit a VESA-edition iMac?
Any arm with a 100×100 VESA plate fits physically. Apple asks that the mount support at least 10 pounds, so also check the arm’s minimum and maximum weight against your model.
Bottom line
The best monitor arm for an iMac starts with the right iMac: order the VESA version if you plan to use an arm. Pair a light 24-inch iMac with a gas-spring arm that has a low minimum weight, and a heavy 27-inch iMac with an arm rated to 25 pounds. If your iMac has a stand, a riser is the safe fallback.
Ready to decide? Our #1 pick for 2026 is the 24-inch iMac (VESA version).
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