HTC Windows Phone 8X 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.

• Weight

  Windows Phone 8X: 16.5 g lighter

  Windows Phone 8X:

  130 g

  Y81:

  146.5 g

• Width

  Windows Phone 8X: 8.8 mm narrower

  Windows Phone 8X:

  66.2 mm

  Y81:

  75 mm

• Screen diagonal

  Windows Phone 8X: 1.92 in smaller diagonal

  Windows Phone 8X:

  4.3 in

  Y81:

  6.22 in

• Chipset

  Windows Phone 8X:

  Qualcomm MSM8960 Snapdragon S4 Plus

  Y81:

  Mediatek MT6762 Helio P22 (12 nm)

• Depth

  Y81: 2.3 mm thinner

  Windows Phone 8X:

  10.1 mm

  Y81:

  7.8 mm

• Height

  Windows Phone 8X: 22.7 mm shorter

  Windows Phone 8X:

  132.4 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. Windows Phone 8X

   Height:

   132.4 mm

   Width:

   66.2 mm

   Depth:

   10.1 mm +2.3 mm versus Y81

2. 2. Y81

   Height:

   155.1 mm +22.7 mm versus Windows Phone 8X

   Width:

   75 mm +8.8 mm versus Windows Phone 8X

   Depth:

   7.8 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. Windows Phone 8X

   Screen diagonal:

   4.3 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   51 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 89.4% more rectangular screen area than Windows Phone 8X.

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.