verykool s4009 Crystal vs ZTE Open II

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

  Open II: 5 mm narrower

  s4009 Crystal:

  66 mm

  Open II:

  61 mm

• Screen diagonal

  Open II: 0.5 in smaller diagonal

  s4009 Crystal:

  4 in

  Open II:

  3.5 in

• Chipset

  s4009 Crystal:

  Mediatek MT6570 (28 nm)

  Open II:

  Qualcomm MSM8210 Snapdragon 200 (28 nm)

• Height

  Open II: 9 mm shorter

  s4009 Crystal:

  127 mm

  Open II:

  118 mm

• Release year

  s4009 Crystal:

  2017

  Open II:

  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 +9 mm versus Open II

   Width:

   66 mm +5 mm versus Open II

   Depth:

   10.7 mm

   Weight:

   Unknown

2. 2. Open II

   Height:

   118 mm

   Width:

   61 mm

   Depth:

   10.5 mm

   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. s4009 Crystal

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   45.5 cm²

2. 2. Open II

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   3:2

   Approximate rectangular screen area:

   36.5 cm²

s4009 Crystal has approximately 24.8% more rectangular screen area than Open II.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

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.