Micromax A28 Bolt vs Micromax Viva A72

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

  A28 Bolt: 97 g lighter

  A28 Bolt:

  89 g

  Viva A72:

  186 g

• Width

  A28 Bolt: 13.5 mm narrower

  A28 Bolt:

  62.5 mm

  Viva A72:

  76 mm

• Screen diagonal

  A28 Bolt: 1.5 in smaller diagonal

  A28 Bolt:

  3.5 in

  Viva A72:

  5 in

• Depth

  Viva A72: 1.9 mm thinner

  A28 Bolt:

  12.5 mm

  Viva A72:

  10.6 mm

• Height

  A28 Bolt: 25.9 mm shorter

  A28 Bolt:

  116.9 mm

  Viva A72:

  142.8 mm

• Release year

  A28 Bolt:

  2014

  Viva A72:

  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. A28 Bolt

   Height:

   116.9 mm

   Width:

   62.5 mm

   Depth:

   12.5 mm +1.9 mm versus Viva A72

2. 2. Viva A72

   Height:

   142.8 mm +25.9 mm versus A28 Bolt

   Width:

   76 mm +13.5 mm versus A28 Bolt

   Depth:

   10.6 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. A28 Bolt

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   3:2

   Approximate rectangular screen area:

   36.5 cm²

2. 2. Viva A72

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   71.2 cm²

Viva A72 has approximately 95.1% more rectangular screen area than A28 Bolt.

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.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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.