Karbonn A4 vs Nokia E51 camera-free

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

  A4: 25 g lighter

  A4:

  75 g

  E51 camera-free:

  100 g

• Width

  E51 camera-free: 20 mm narrower

  A4:

  66 mm

  E51 camera-free:

  46 mm

• Screen diagonal

  E51 camera-free: 2 in smaller diagonal

  A4:

  4 in

  E51 camera-free:

  2 in

• Depth

  A4: 2.5 mm thinner

  A4:

  9.5 mm

  E51 camera-free:

  12 mm

• Height

  E51 camera-free: 10 mm shorter

  A4:

  124.8 mm

  E51 camera-free:

  114.8 mm

• Release year

  A4:

  2013

  E51 camera-free:

  2008

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. A4

   Height:

   124.8 mm +10 mm versus E51 camera-free

   Width:

   66 mm +20 mm versus E51 camera-free

   Depth:

   9.5 mm

2. 2. E51 camera-free

   Height:

   114.8 mm

   Width:

   46 mm

   Depth:

   12 mm +2.5 mm versus A4

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. A4

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   3:2

   Approximate rectangular screen area:

   47.6 cm²

2. 2. E51 camera-free

   Screen diagonal:

   2 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   12.4 cm²

A4 has approximately 284.6% more rectangular screen area than E51 camera-free.

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.