Apple - MacBook Air 15 M4 vs Dell - XPS 13 (9350)

The MacBook Air 15 M4 edges ahead on the Mars Score (58.9 vs 54.7), but the 4.2-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the MacBook Air 15 M4 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 battery, screen size, thunderbolt ports.

Pick the XPS 13 (9350) 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 cpu cores, claimed battery life, panel type, among others.

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.