OnePlus 13R vs Xiaomi 15 Ultra

These two are nearly even on the Mars Score (71.3 vs 73.8). The decision isn't about overall quality — both clear the bar — it's about which specific trade-offs fit your use.

Pick the OnePlus 13R 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 weight, screen size.

Pick the Xiaomi 15 Ultra if you photograph or shoot video regularly and want the better imaging pipeline of the two. Its strongest claims are front camera, ram, antutu, among others.

Both ship with comparable battery capacity, main camera, 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.