Acer M900 vs QMobile Noir X450

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

  Noir X450: 38 g lighter

  M900:

  188 g

  Noir X450:

  150 g

• Width

  M900: 12.3 mm narrower

  M900:

  62 mm

  Noir X450:

  74.3 mm

• Screen diagonal

  M900: 1.2 in smaller diagonal

  M900:

  3.8 in

  Noir X450:

  5 in

• Depth

  Noir X450: 8.5 mm thinner

  M900:

  17.1 mm

  Noir X450:

  8.6 mm

• Height

  M900: 23.8 mm shorter

  M900:

  119 mm

  Noir X450:

  142.8 mm

• Release year

  M900:

  2009

  Noir X450:

  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. M900

   Height:

   119 mm

   Width:

   62 mm

   Depth:

   17.1 mm +8.5 mm versus Noir X450

2. 2. Noir X450

   Height:

   142.8 mm +23.8 mm versus M900

   Width:

   74.3 mm +12.3 mm versus M900

   Depth:

   8.6 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. M900

   Screen diagonal:

   3.8 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   41.1 cm²

2. 2. Noir X450

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

Noir X450 has approximately 67.7% more rectangular screen area than M900.

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.