Acer - Predator Helios 18 (2025) vs Lenovo - Yoga 9i Gen 9

The Predator Helios 18 (2025) is the clear pick on raw spec strength, leading by 21.2 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.

Pick the Predator Helios 18 (2025) if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. The biggest gaps in its favor are refresh rate, ram, storage, among others.

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 thunderbolt ports, backlit keyboard, so those specs don't separate the two — focus on the differences below.

Bottom line: the Predator Helios 18 (2025) is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.