HTC One A9 vs vivo Y81

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

  One A9:

  OLED

  Y81:

  LCD

• Width

  One A9: 4.2 mm narrower

  One A9:

  70.8 mm

  Y81:

  75 mm

• Screen diagonal

  One A9: 1.22 in smaller diagonal

  One A9:

  5 in

  Y81:

  6.22 in

• Chipset

  One A9:

  Qualcomm MSM8952 Snapdragon 617 (28 nm)

  Y81:

  Mediatek MT6762 Helio P22 (12 nm)

• Depth

  One A9: 0.5 mm thinner

  One A9:

  7.3 mm

  Y81:

  7.8 mm

• Height

  One A9: 9.3 mm shorter

  One A9:

  145.8 mm

  Y81:

  155.1 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 A9

   Height:

   145.8 mm

   Width:

   70.8 mm

   Depth:

   7.3 mm

2. 2. Y81

   Height:

   155.1 mm +9.3 mm versus One A9

   Width:

   75 mm +4.2 mm versus One A9

   Depth:

   7.8 mm +0.5 mm versus One A9

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 A9

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

2. 2. Y81

   Screen diagonal:

   6.22 in

   Aspect ratio (height:width):

   19:9

   Approximate rectangular screen area:

   96.6 cm²

Y81 has approximately 40.1% more rectangular screen area than One A9.

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.