Oppo A77 (Mediatek) vs ZTE Open

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

  Open: 13.2 mm narrower

  A77 (Mediatek):

  75.2 mm

  Open:

  62 mm

• Screen diagonal

  Open: 2 in smaller diagonal

  A77 (Mediatek):

  5.5 in

  Open:

  3.5 in

• Chipset

  A77 (Mediatek):

  Mediatek MT6750T (28 nm)

  Open:

  Qualcomm MSM7225A Snapdragon S1

• Depth

  A77 (Mediatek): 5.2 mm thinner

  A77 (Mediatek):

  7.3 mm

  Open:

  12.5 mm

• Height

  Open: 39.3 mm shorter

  A77 (Mediatek):

  153.3 mm

  Open:

  114 mm

• Release year

  A77 (Mediatek):

  2017

  Open:

  2013

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. A77 (Mediatek)

   Height:

   153.3 mm +39.3 mm versus Open

   Width:

   75.2 mm +13.2 mm versus Open

   Depth:

   7.3 mm

   Weight:

   153 g

2. 2. Open

   Height:

   114 mm

   Width:

   62 mm

   Depth:

   12.5 mm +5.2 mm versus A77 (Mediatek)

   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. A77 (Mediatek)

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   83.4 cm²

2. 2. Open

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   3:2

   Approximate rectangular screen area:

   36.5 cm²

A77 (Mediatek) has approximately 128.6% more rectangular screen area than Open.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

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.