BlackBerry Pearl 8100 vs Kyocera Echo

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.

• Weight

  Pearl 8100: 103.5 g lighter

  Pearl 8100:

  89.5 g

  Echo:

  193 g

• Width

  Pearl 8100: 6.5 mm narrower

  Pearl 8100:

  50 mm

  Echo:

  56.5 mm

• Screen diagonal

  Pearl 8100: 1.3 in smaller diagonal

  Pearl 8100:

  2.2 in

  Echo:

  3.5 in

• Depth

  Pearl 8100: 2.7 mm thinner

  Pearl 8100:

  14.5 mm

  Echo:

  17.2 mm

• Height

  Pearl 8100: 8 mm shorter

  Pearl 8100:

  107 mm

  Echo:

  115 mm

• Release year

  Pearl 8100:

  2006

  Echo:

  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. Pearl 8100

   Height:

   107 mm

   Width:

   50 mm

   Depth:

   14.5 mm

2. 2. Echo

   Height:

   115 mm +8 mm versus Pearl 8100

   Width:

   56.5 mm +6.5 mm versus Pearl 8100

   Depth:

   17.2 mm +2.7 mm versus Pearl 8100

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.

At least two phones need compatible screen dimensions for a drawing.

1. 1. Pearl 8100

   Pearl 8100: Screen geometry unavailable or conflicting.

2. 2. Echo

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   34.9 cm²

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.