Celkon Campus Prime vs Microsoft Lumia 640 LTE

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

  Campus Prime: 25.8 g lighter

  Campus Prime:

  119.2 g

  Lumia 640 LTE:

  145 g

• Width

  Campus Prime: 5.2 mm narrower

  Campus Prime:

  67 mm

  Lumia 640 LTE:

  72.2 mm

• Screen diagonal

  Campus Prime: 0.5 in smaller diagonal

  Campus Prime:

  4.5 in

  Lumia 640 LTE:

  5 in

• Chipset

  Campus Prime:

  Spreadtrum SC7715

  Lumia 640 LTE:

  Qualcomm MSM8926 Snapdragon 400 (28 nm)

• Depth

  Lumia 640 LTE: 0.5 mm thinner

  Campus Prime:

  9.3 mm

  Lumia 640 LTE:

  8.8 mm

• Height

  Campus Prime: 9.3 mm shorter

  Campus Prime:

  132 mm

  Lumia 640 LTE:

  141.3 mm

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

   Width:

   67 mm

   Depth:

   9.3 mm +0.5 mm versus Lumia 640 LTE

2. 2. Lumia 640 LTE

   Height:

   141.3 mm +9.3 mm versus Campus Prime

   Width:

   72.2 mm +5.2 mm versus Campus Prime

   Depth:

   8.8 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. Lumia 640 LTE

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

Lumia 640 LTE has approximately 23.5% more rectangular screen area than Campus Prime.

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.