BLU Studio X9 HD vs Celkon A402

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

  A402: 40 g lighter

  Studio X9 HD:

  144 g

  A402:

  104 g

• Width

  A402: 9 mm narrower

  Studio X9 HD:

  73 mm

  A402:

  64 mm

• Screen diagonal

  A402: 1 in smaller diagonal

  Studio X9 HD:

  5 in

  A402:

  4 in

• Chipset

  Studio X9 HD:

  Mediatek MT6580 (28 nm)

  A402:

  Spreadtrum 7715

• Height

  A402: 17.5 mm shorter

  Studio X9 HD:

  143 mm

  A402:

  125.5 mm

• Release year

  Studio X9 HD:

  2020

  A402:

  2015

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. Studio X9 HD

   Height:

   143 mm +17.5 mm versus A402

   Width:

   73 mm +9 mm versus A402

   Depth:

   10.1 mm

2. 2. A402

   Height:

   125.5 mm

   Width:

   64 mm

   Depth:

   10.2 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. Studio X9 HD

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

2. 2. A402

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   45.5 cm²

Studio X9 HD has approximately 51.3% more rectangular screen area than A402.

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.