Microsoft - Surface Laptop Studio 3 vs ASUS - Zenbook S 14 UX5406

The Zenbook S 14 UX5406 edges ahead on the Mars Score (60.7 vs 64.2), but the 3.5-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the Surface Laptop Studio 3 if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. The biggest gaps in its favor are claimed battery life, screen size.

Pick the Zenbook S 14 UX5406 if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. Its strongest claims are battery, weight, panel type.

Both ship with comparable ram, storage, refresh rate, so those specs don't separate the two — focus on the differences below.

Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.