BLU Vivo One vs Celkon A40

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

  A40: 33.5 g lighter

  Vivo One:

  160 g

  A40:

  126.5 g

• Width

  A40: 6.1 mm narrower

  Vivo One:

  70.1 mm

  A40:

  64 mm

• Screen diagonal

  A40: 1.5 in smaller diagonal

  Vivo One:

  5.5 in

  A40:

  4 in

• Depth

  Vivo One: 1 mm thinner

  Vivo One:

  9.8 mm

  A40:

  10.8 mm

• Height

  A40: 22.2 mm shorter

  Vivo One:

  148.4 mm

  A40:

  126.2 mm

• Release year

  Vivo One:

  2018

  A40:

  2014

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. Vivo One

   Height:

   148.4 mm +22.2 mm versus A40

   Width:

   70.1 mm +6.1 mm versus A40

   Depth:

   9.8 mm

2. 2. A40

   Height:

   126.2 mm

   Width:

   64 mm

   Depth:

   10.8 mm +1 mm versus Vivo One

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. Vivo One

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   18:9

   Approximate rectangular screen area:

   78.1 cm²

2. 2. A40

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   45.5 cm²

Vivo One has approximately 71.4% more rectangular screen area than A40.

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.