Sony Xperia U vs vivo Y31

Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

• Weight

  Xperia U: 27 g lighter

  Xperia U:

  110 g

  Y31:

  137 g

• Width

  Xperia U: 14.8 mm narrower

  Xperia U:

  54 mm

  Y31:

  68.8 mm

• Screen diagonal

  Xperia U: 1.2 in smaller diagonal

  Xperia U:

  3.5 in

  Y31:

  4.7 in

• Depth

  Y31: 3.6 mm thinner

  Xperia U:

  12 mm

  Y31:

  8.4 mm

• Height

  Xperia U: 25.2 mm shorter

  Xperia U:

  112 mm

  Y31:

  137.2 mm

• Release year

  Xperia U:

  2012

  Y31:

  2015

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

1. 1. Xperia U

   Height:

   112 mm

   Width:

   54 mm

   Depth:

   12 mm +3.6 mm versus Y31

2. 2. Y31

   Height:

   137.2 mm +25.2 mm versus Xperia U

   Width:

   68.8 mm +14.8 mm versus Xperia U

   Depth:

   8.4 mm

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

1. 1. Xperia U

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   33.8 cm²

2. 2. Y31

   Screen diagonal:

   4.7 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   60.9 cm²

Y31 has approximately 80.3% more rectangular screen area than Xperia U.

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

Battery capacity

Capacity is not battery life. No endurance test is implied.

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.