BlackBerry Bold Touch 9900 vs Nokia E51

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

  E51: 30 g lighter

  Bold Touch 9900:

  130 g

  E51:

  100 g

• Width

  E51: 20 mm narrower

  Bold Touch 9900:

  66 mm

  E51:

  46 mm

• Screen diagonal

  E51: 0.8 in smaller diagonal

  Bold Touch 9900:

  2.8 in

  E51:

  2 in

• Depth

  Bold Touch 9900: 1.5 mm thinner

  Bold Touch 9900:

  10.5 mm

  E51:

  12 mm

• Release year

  Bold Touch 9900:

  2011

  E51:

  2007

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. Bold Touch 9900

   Height:

   115 mm

   Width:

   66 mm +20 mm versus E51

   Depth:

   10.5 mm

2. 2. E51

   Height:

   114.8 mm

   Width:

   46 mm

   Depth:

   12 mm +1.5 mm versus Bold Touch 9900

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. Bold Touch 9900

   Screen diagonal:

   2.8 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   24.3 cm²

2. 2. E51

   Screen diagonal:

   2 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   12.4 cm²

Bold Touch 9900 has approximately 96% more rectangular screen area than E51.

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.