Allview Viper E vs verykool s4009 Crystal

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.

• Width

  Viper E: 1 mm narrower

  Viper E:

  65 mm

  s4009 Crystal:

  66 mm

• Screen diagonal

  s4009 Crystal: 0.5 in smaller diagonal

  Viper E:

  4.5 in

  s4009 Crystal:

  4 in

• Chipset

  Viper E:

  Mediatek MT6582 (28 nm)

  s4009 Crystal:

  Mediatek MT6570 (28 nm)

• Depth

  Viper E: 2.9 mm thinner

  Viper E:

  7.8 mm

  s4009 Crystal:

  10.7 mm

• Height

  s4009 Crystal: 4 mm shorter

  Viper E:

  131 mm

  s4009 Crystal:

  127 mm

• Release year

  Viper E:

  2014

  s4009 Crystal:

  2017

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 E

   Height:

   131 mm +4 mm versus s4009 Crystal

   Width:

   65 mm

   Depth:

   7.8 mm

   Weight:

   122.5 g

2. 2. s4009 Crystal

   Height:

   127 mm

   Width:

   66 mm +1 mm versus Viper E

   Depth:

   10.7 mm +2.9 mm versus Viper E

   Weight:

   Unknown

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 E

   Screen diagonal:

   4.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   55.8 cm²

2. 2. s4009 Crystal

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   45.5 cm²

Viper E has approximately 22.6% more rectangular screen area than s4009 Crystal.

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.