Ultrawide is fantastic—until your arm starts to sag. If you run a 49–57″ curved display like Samsung Odyssey, you’re dealing with big weight, deep housings, and a forward center of gravity. That combination overwhelms many “high‑capacity” arms. This guide explains what to look for, why extra headroom matters, and why a 27 kg / up to 57″ gas‑spring arm is the safest bet.