Icemobile Crystal vs Plum Sync 4.0b

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

  Crystal: 7.3 mm narrower

  Crystal:

  56.2 mm

  Sync 4.0b:

  63.5 mm

• Screen diagonal

  Crystal: 0.5 in smaller diagonal

  Crystal:

  3.5 in

  Sync 4.0b:

  4 in

• Chipset

  Crystal:

  Mediatek MT6516

  Sync 4.0b:

  Mediatek MT6572 (28 nm)

• Depth

  Sync 4.0b: 2.7 mm thinner

  Crystal:

  13.1 mm

  Sync 4.0b:

  10.4 mm

• Height

  Crystal: 13 mm shorter

  Crystal:

  111.5 mm

  Sync 4.0b:

  124.5 mm

• Release year

  Crystal:

  2011

  Sync 4.0b:

  2015

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. Crystal

   Height:

   111.5 mm

   Width:

   56.2 mm

   Depth:

   13.1 mm +2.7 mm versus Sync 4.0b

   Weight:

   Unknown

2. 2. Sync 4.0b

   Height:

   124.5 mm +13 mm versus Crystal

   Width:

   63.5 mm +7.3 mm versus Crystal

   Depth:

   10.4 mm

   Weight:

   84.8 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. Crystal

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   34.9 cm²

2. 2. Sync 4.0b

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   45.5 cm²

Sync 4.0b has approximately 30.6% more rectangular screen area than 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.

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.