Nubia - Z70 Ultra vs ASUS - ROG Phone 9 Pro

These two are nearly even on the Mars Score (75.1 vs 77.7). The decision isn't about overall quality — both clear the bar — it's about which specific trade-offs fit your use.

Pick the Z70 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 wired charging, battery capacity, screen size.

Pick the ROG Phone 9 Pro if you photograph or shoot video regularly and want the better imaging pipeline of the two. Its strongest claims are front camera, ram, refresh rate, among others.

Both ship with comparable main camera, weight, 5g support, 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.