i-mate JAM Black vs Vertu Constellation

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

  Constellation: 3.5 mm narrower

  JAM Black:

  58 mm

  Constellation:

  54.5 mm

• Screen diagonal

  JAM Black: 0.7 in smaller diagonal

  JAM Black:

  2.8 in

  Constellation:

  3.5 in

• Depth

  Constellation: 5.8 mm thinner

  JAM Black:

  18 mm

  Constellation:

  12.2 mm

• Height

  JAM Black: 10.2 mm shorter

  JAM Black:

  108 mm

  Constellation:

  118.2 mm

• Release year

  JAM Black:

  2005

  Constellation:

  2011

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. JAM Black

   Height:

   108 mm

   Width:

   58 mm +3.5 mm versus Constellation

   Depth:

   18 mm +5.8 mm versus Constellation

2. 2. Constellation

   Height:

   118.2 mm +10.2 mm versus JAM Black

   Width:

   54.5 mm

   Depth:

   12.2 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. JAM Black

   Screen diagonal:

   2.8 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   24.3 cm²

2. 2. Constellation

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   33.8 cm²

Constellation has approximately 39.1% more rectangular screen area than JAM Black.

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.