Allview Viper V1 vs Oppo A57

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

  Viper V1: 22.1 g lighter

  Viper V1:

  124.9 g

  A57:

  147 g

• Width

  Viper V1: 4.5 mm narrower

  Viper V1:

  68.4 mm

  A57:

  72.9 mm

• Screen diagonal

  Viper V1: 0.5 in smaller diagonal

  Viper V1:

  4.7 in

  A57:

  5.2 in

• Chipset

  Viper V1:

  Mediatek MT6589 (28 nm)

  A57:

  Qualcomm MSM8940 Snapdragon 435 (28 nm)

• Height

  Viper V1: 11.6 mm shorter

  Viper V1:

  137.5 mm

  A57:

  149.1 mm

• Release year

  Viper V1:

  2013

  A57:

  2016

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. Viper V1

   Height:

   137.5 mm

   Width:

   68.4 mm

   Depth:

   7.9 mm

2. 2. A57

   Height:

   149.1 mm +11.6 mm versus Viper V1

   Width:

   72.9 mm +4.5 mm versus Viper V1

   Depth:

   7.7 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. Viper V1

   Screen diagonal:

   4.7 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   60.9 cm²

2. 2. A57

   Screen diagonal:

   5.2 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   74.5 cm²

A57 has approximately 22.4% more rectangular screen area than Viper V1.

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.