Asus Zenfone 4 Pro ZS551KL vs QMobile Noir E2

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.

• Display technology

  OLED versus LCD

  Zenfone 4 Pro ZS551KL:

  OLED

  Noir E2:

  LCD

• Width

  Noir E2: 3.2 mm narrower

  Zenfone 4 Pro ZS551KL:

  75.6 mm

  Noir E2:

  72.4 mm

• Screen diagonal

  Noir E2: 0.3 in smaller diagonal

  Zenfone 4 Pro ZS551KL:

  5.5 in

  Noir E2:

  5.2 in

• Chipset

  Zenfone 4 Pro ZS551KL:

  Qualcomm MSM8998 Snapdragon 835 (10 nm)

  Noir E2:

  Mediatek MT6755 Helio P10 (28 nm)

• Rear camera layout

  Zenfone 4 Pro ZS551KL:

  Dual

  Noir E2:

  Single

• Depth

  Zenfone 4 Pro ZS551KL: 1.5 mm thinner

  Zenfone 4 Pro ZS551KL:

  7.6 mm

  Noir E2:

  9.1 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. Zenfone 4 Pro ZS551KL

   Height:

   156.9 mm +8.2 mm versus Noir E2

   Width:

   75.6 mm +3.2 mm versus Noir E2

   Depth:

   7.6 mm

   Weight:

   175 g

2. 2. Noir E2

   Height:

   148.7 mm

   Width:

   72.4 mm

   Depth:

   9.1 mm +1.5 mm versus Zenfone 4 Pro ZS551KL

   Weight:

   Unknown

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. Zenfone 4 Pro ZS551KL

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   83.4 cm²

2. 2. Noir E2

   Screen diagonal:

   5.2 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   74.5 cm²

Zenfone 4 Pro ZS551KL has approximately 11.9% more rectangular screen area than Noir E2.

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.