Lava A51 vs QMobile Noir S1

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

  A51: 5.8 mm narrower

  A51:

  66 mm

  Noir S1:

  71.8 mm

• Screen diagonal

  A51: 0.5 in smaller diagonal

  A51:

  4.5 in

  Noir S1:

  5 in

• Chipset

  A51:

  Spreadtrum SC7731C

  Noir S1:

  Mediatek MT6582M (28 nm)

• Depth

  Noir S1: 1 mm thinner

  A51:

  9.9 mm

  Noir S1:

  8.9 mm

• Height

  A51: 7 mm shorter

  A51:

  136 mm

  Noir S1:

  143 mm

• Release year

  A51:

  2016

  Noir S1:

  2015

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

   Width:

   66 mm

   Depth:

   9.9 mm +1 mm versus Noir S1

   Weight:

   Unknown

2. 2. Noir S1

   Height:

   143 mm +7 mm versus A51

   Width:

   71.8 mm +5.8 mm versus A51

   Depth:

   8.9 mm

   Weight:

   152 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. Noir S1

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

Noir S1 has approximately 23.5% more rectangular screen area than A51.

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.