Microsoft - Surface Laptop 7 (15) vs Lenovo - Yoga 9i Gen 9

The Yoga 9i Gen 9 edges ahead on the Mars Score (61.7 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 Surface Laptop 7 (15) 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 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 storage, cpu cores, battery, among others.

Both ship with comparable ram, refresh rate, backlit keyboard, 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.