Ergotron LX Desk Monitor Arm vs Secretlab Magnus Monitor Arm
Two of the monitor arms in our best monitor arms: ergotron, uplift, secretlab, vari & haworth comparison, lined up spec by spec. Every figure comes from the manufacturer pages linked below, and the scores use the same published formula as the full ranking.
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Best for: The classic arm: 25 lb, 13" of lift
Check price at AmazonBest for: Magnetic cable management, up to 34"
Check price at AmazonSpec-by-spec comparison
Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.
| Spec | Ergotron LX Desk Monitor Arm | Secretlab Magnus Monitor Arm | Weight |
|---|---|---|---|
| Max monitor weightThe top of the maker's rated weight range. Heavier ultrawides and 32"+ monitors need more. | 25 lb | 17.6 lb | 35% |
| Max screen sizeThe largest diagonal the maker rates the arm for. Ergotron notes weight matters more than size. | 34 in | 34 in | 15% |
| Height adjustmentTotal up-and-down travel. Where a maker gives a low and high point, we subtract. | 13 in | 11.6 in | 20% |
| ReachHow far the arm extends from its post; more reach lets you pull the screen closer or push it back. | 25 in | 20.3 in | 15% |
| WarrantyYears of coverage. Lifetime scores the same as 15 years. | 10 yr | 3 yr | 15% |
| Weight range | 7–25 lb (3.2–11.3 kg) | 5.5–17.6 lb per arm | info |
| Typical screen | Up to 34" | Not listed | info |
| Lift | 13" (33 cm) | Not listed | info |
| Extension | 25" (64 cm) | Not listed | info |
| Height adjustment | Not listed | 295 mm (11.6") | info |
| Reach | Not listed | 515.7 mm (20.3") | info |
| ErgoPick score | 5.8/10 | 3.0/10 | 100% |
Where each one comes out ahead
Ergotron LX Desk Monitor Arm
Better published figure on: Max monitor weight, Height adjustment, Reach, Warranty.
What we like
Watch out for
Secretlab Magnus Monitor Arm
No scored spec where it is strictly ahead; its case rests on the strengths below.
What we like
Watch out for
- Lowest max monitor weight in this comparison (17.6 lb)
- Lowest warranty in this comparison (3 yr)
Verdict
Ergotron holds 25 vs 17.6 lb with more lift (13" vs 11.6") and a 10- vs 3-year warranty; both are rated to 34".
- Ergotron LX Desk Monitor Arm: Ergotron: LX Desk Monitor Arm spec sheet
- Secretlab Magnus Monitor Arm: Secretlab: Magnus Monitor Arm