verykool s4009 Crystal vs ZTE Zmax

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

  s4009 Crystal: 17.8 mm narrower

  s4009 Crystal:

  66 mm

  Zmax:

  83.8 mm

• Screen diagonal

  s4009 Crystal: 1.7 in smaller diagonal

  s4009 Crystal:

  4 in

  Zmax:

  5.7 in

• Chipset

  s4009 Crystal:

  Mediatek MT6570 (28 nm)

  Zmax:

  Qualcomm MSM8926 Snapdragon 400 (28 nm)

• Depth

  Zmax: 1.8 mm thinner

  s4009 Crystal:

  10.7 mm

  Zmax:

  8.9 mm

• Height

  s4009 Crystal: 35.6 mm shorter

  s4009 Crystal:

  127 mm

  Zmax:

  162.6 mm

• Release year

  s4009 Crystal:

  2017

  Zmax:

  2014

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. s4009 Crystal

   Height:

   127 mm

   Width:

   66 mm

   Depth:

   10.7 mm +1.8 mm versus Zmax

   Weight:

   Unknown

2. 2. Zmax

   Height:

   162.6 mm +35.6 mm versus s4009 Crystal

   Width:

   83.8 mm +17.8 mm versus s4009 Crystal

   Depth:

   8.9 mm

   Weight:

   189.9 g

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. s4009 Crystal

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   45.5 cm²

2. 2. Zmax

   Screen diagonal:

   5.7 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   89.6 cm²

Zmax has approximately 96.7% 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.