Asus Zenfone 2 ZE551ML vs Oppo A9

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

  Zenfone 2 ZE551ML: 20 g lighter

  Zenfone 2 ZE551ML:

  170 g

  A9:

  190 g

• Width

  A9: 1.1 mm narrower

  Zenfone 2 ZE551ML:

  77.2 mm

  A9:

  76.1 mm

• Screen diagonal

  Zenfone 2 ZE551ML: 1.03 in smaller diagonal

  Zenfone 2 ZE551ML:

  5.5 in

  A9:

  6.53 in

• Chipset

  Zenfone 2 ZE551ML:

  Intel Atom Z3580 (4 GB RAM model) -Intel Atom Z3560 (2 GB RAM model)

  A9:

  Mediatek Helio P70 (12nm)

• Rear camera layout

  Zenfone 2 ZE551ML:

  Single

  A9:

  Dual

• Depth

  A9: 2.6 mm thinner

  Zenfone 2 ZE551ML:

  10.9 mm

  A9:

  8.3 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 2 ZE551ML

   Height:

   152.5 mm

   Width:

   77.2 mm +1.1 mm versus A9

   Depth:

   10.9 mm +2.6 mm versus A9

2. 2. A9

   Height:

   162 mm +9.5 mm versus Zenfone 2 ZE551ML

   Width:

   76.1 mm

   Depth:

   8.3 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. Zenfone 2 ZE551ML

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   83.4 cm²

2. 2. A9

   Screen diagonal:

   6.53 in

   Aspect ratio (height:width):

   19.5:9

   Approximate rectangular screen area:

   104.7 cm²

A9 has approximately 25.5% more rectangular screen area than Zenfone 2 ZE551ML.

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.