Karbonn Smart A12 Star vs Yezz Billy 4.7

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

  Billy 4.7: 10 g lighter

  Smart A12 Star:

  130 g

  Billy 4.7:

  120 g

• Width

  Smart A12 Star: 3 mm narrower

  Smart A12 Star:

  64.2 mm

  Billy 4.7:

  67.2 mm

• Screen diagonal

  Smart A12 Star: 0.7 in smaller diagonal

  Smart A12 Star:

  4 in

  Billy 4.7:

  4.7 in

• Depth

  Billy 4.7: 2.9 mm thinner

  Smart A12 Star:

  10.1 mm

  Billy 4.7:

  7.2 mm

• Height

  Smart A12 Star: 11.6 mm shorter

  Smart A12 Star:

  124.2 mm

  Billy 4.7:

  135.8 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. Smart A12 Star

   Height:

   124.2 mm

   Width:

   64.2 mm

   Depth:

   10.1 mm +2.9 mm versus Billy 4.7

2. 2. Billy 4.7

   Height:

   135.8 mm +11.6 mm versus Smart A12 Star

   Width:

   67.2 mm +3 mm versus Smart A12 Star

   Depth:

   7.2 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. Smart A12 Star

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   45.5 cm²

2. 2. Billy 4.7

   Screen diagonal:

   4.7 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   60.9 cm²

Billy 4.7 has approximately 33.7% more rectangular screen area than Smart A12 Star.

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.