Allview A4ALL vs Yezz Billy 4

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: 13.7 g lighter

  A4ALL:

  122.7 g

  Billy 4:

  109 g

• Width

  A4ALL: 2.4 mm narrower

  A4ALL:

  62 mm

  Billy 4:

  64.4 mm

• Screen diagonal

  A4ALL: 0.5 in smaller diagonal

  A4ALL:

  3.5 in

  Billy 4:

  4 in

• Depth

  Billy 4: 2.3 mm thinner

  A4ALL:

  12.2 mm

  Billy 4:

  9.9 mm

• Height

  A4ALL: 7.5 mm shorter

  A4ALL:

  115 mm

  Billy 4:

  122.5 mm

• Release year

  A4ALL:

  2013

  Billy 4:

  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. A4ALL

   Height:

   115 mm

   Width:

   62 mm

   Depth:

   12.2 mm +2.3 mm versus Billy 4

2. 2. Billy 4

   Height:

   122.5 mm +7.5 mm versus A4ALL

   Width:

   64.4 mm +2.4 mm versus A4ALL

   Depth:

   9.9 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. A4ALL

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   3:2

   Approximate rectangular screen area:

   36.5 cm²

2. 2. Billy 4

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   45.5 cm²

Billy 4 has approximately 24.8% more rectangular screen area than A4ALL.

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.

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.