HTC One A9s vs Oppo A57

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

  One A9s: 1.4 mm narrower

  One A9s:

  71.5 mm

  A57:

  72.9 mm

• Screen diagonal

  One A9s: 0.2 in smaller diagonal

  One A9s:

  5 in

  A57:

  5.2 in

• Chipset

  One A9s:

  Mediatek MT6755 Helio P10 (28 nm)

  A57:

  Qualcomm MSM8940 Snapdragon 435 (28 nm)

• Height

  One A9s: 2.6 mm shorter

  One A9s:

  146.5 mm

  A57:

  149.1 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. One A9s

   Height:

   146.5 mm

   Width:

   71.5 mm

   Depth:

   8 mm

2. 2. A57

   Height:

   149.1 mm +2.6 mm versus One A9s

   Width:

   72.9 mm +1.4 mm versus One A9s

   Depth:

   7.7 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. One A9s

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

2. 2. A57

   Screen diagonal:

   5.2 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   74.5 cm²

A57 has approximately 8.2% more rectangular screen area than One A9s.

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.