ASUS - Vivobook S 14 OLED (2025) vs ASUS - Zenbook S 14 UX5406

These two are nearly even on the Mars Score (68.1 vs 69.1). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.

Pick the Vivobook S 14 OLED (2025) 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 cpu cores, battery. The single most decisive one: CPU cores — 25.00% more. 10 vs 8.

Pick the Zenbook S 14 UX5406 if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. Its strongest claims are ram, thunderbolt ports, weight. The single most decisive one: RAM — 100.00% more. 32 GB vs 16 GB.

Both ship with comparable storage, claimed battery life, screen size, so those specs do not 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 says both are well-rounded; the differences are about trade-offs, not quality.