BLU Pure XR 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.

• Display technology

  OLED versus LCD

  Pure XR:

  OLED

  Y31:

  LCD

• Weight

  Y31: 10.2 g lighter

  Pure XR:

  147.2 g

  Y31:

  137 g

• Width

  Y31: 6.1 mm narrower

  Pure XR:

  74.9 mm

  Y31:

  68.8 mm

• Screen diagonal

  Y31: 0.8 in smaller diagonal

  Pure XR:

  5.5 in

  Y31:

  4.7 in

• Chipset

  Pure XR:

  Mediatek MT6755 Helio P10 (28 nm)

  Y31:

  Mediatek MT6580 (28 nm)

• Depth

  Pure XR: 1.4 mm thinner

  Pure XR:

  7 mm

  Y31:

  8.4 mm

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. Pure XR

   Height:

   154.3 mm +17.1 mm versus Y31

   Width:

   74.9 mm +6.1 mm versus Y31

   Depth:

   7 mm

2. 2. Y31

   Height:

   137.2 mm

   Width:

   68.8 mm

   Depth:

   8.4 mm +1.4 mm versus Pure XR

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. Pure XR

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   83.4 cm²

2. 2. Y31

   Screen diagonal:

   4.7 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   60.9 cm²

Pure XR has approximately 36.9% more rectangular screen area than Y31.

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.