Samsung - Galaxy Book4 Ultra vs Lenovo - Yoga 9i Gen 9

The Galaxy Book4 Ultra edges ahead on the Mars Score (70.1 vs 65.9), but the 4.2-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the Galaxy Book4 Ultra 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 ram, screen size, battery.

Pick the Yoga 9i Gen 9 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 claimed battery life, weight.

Both ship with comparable storage, refresh rate, cpu cores, 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.