Nothing - Phone (3a) vs Sony - Xperia 5 V

These two are nearly even on the Mars Score (62.5 vs 63.5). The decision isn't about overall quality — both clear the bar — it's about which specific trade-offs fit your use.

Pick the Phone (3a) if you photograph or shoot video regularly and want the better imaging pipeline of the two. The biggest gaps in its favor are front camera, wired charging, screen size, among others.

Pick the Xperia 5 V if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. Its strongest claims are antutu, weight, pixel density, among others.

Both ship with comparable battery capacity, ram, 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.