Lava A51 vs LG Optimus Z

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.

• Width

  Optimus Z: 9.1 mm narrower

  A51:

  66 mm

  Optimus Z:

  56.9 mm

• Screen diagonal

  Optimus Z: 1 in smaller diagonal

  A51:

  4.5 in

  Optimus Z:

  3.5 in

• Chipset

  A51:

  Spreadtrum SC7731C

  Optimus Z:

  Qualcomm QSD8250 Snapdragon S1

• Depth

  A51: 1.1 mm thinner

  A51:

  9.9 mm

  Optimus Z:

  11 mm

• Height

  Optimus Z: 18.1 mm shorter

  A51:

  136 mm

  Optimus Z:

  117.9 mm

• Release year

  A51:

  2016

  Optimus Z:

  2010

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. A51

   Height:

   136 mm +18.1 mm versus Optimus Z

   Width:

   66 mm +9.1 mm versus Optimus Z

   Depth:

   9.9 mm

   Weight:

   Unknown

2. 2. Optimus Z

   Height:

   117.9 mm

   Width:

   56.9 mm

   Depth:

   11 mm +1.1 mm versus A51

   Weight:

   135 g

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. A51

   Screen diagonal:

   4.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   55.8 cm²

2. 2. Optimus Z

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   37.9 cm²

A51 has approximately 47.2% more rectangular screen area than Optimus Z.

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.