Celkon Campus Prime vs Panasonic T21

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

  T21: 3.5 mm narrower

  Campus Prime:

  67 mm

  T21:

  63.5 mm

• Screen diagonal

  T21: 0.5 in smaller diagonal

  Campus Prime:

  4.5 in

  T21:

  4 in

• Chipset

  Campus Prime:

  Spreadtrum SC7715

  T21:

  Mediatek MT6589 (28 nm)

• Height

  T21: 19.4 mm shorter

  Campus Prime:

  132 mm

  T21:

  112.6 mm

• Release year

  Campus Prime:

  2015

  T21:

  2013

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. Campus Prime

   Height:

   132 mm +19.4 mm versus T21

   Width:

   67 mm +3.5 mm versus T21

   Depth:

   9.3 mm

2. 2. T21

   Height:

   112.6 mm

   Width:

   63.5 mm

   Depth:

   9.2 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. Campus Prime

   Screen diagonal:

   4.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   55.8 cm²

2. 2. T21

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   45.5 cm²

Campus Prime has approximately 22.6% more rectangular screen area than T21.

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.

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.