O2 XDA IIi vs vivo Y91 (Mediatek)

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

  Y91 (Mediatek): 26.5 g lighter

  XDA IIi:

  190 g

  Y91 (Mediatek):

  163.5 g

• Width

  XDA IIi: 5.1 mm narrower

  XDA IIi:

  70 mm

  Y91 (Mediatek):

  75.1 mm

• Screen diagonal

  XDA IIi: 2.72 in smaller diagonal

  XDA IIi:

  3.5 in

  Y91 (Mediatek):

  6.22 in

• Rear camera layout

  XDA IIi:

  Single

  Y91 (Mediatek):

  Dual

• Depth

  Y91 (Mediatek): 10.7 mm thinner

  XDA IIi:

  19 mm

  Y91 (Mediatek):

  8.3 mm

• Height

  XDA IIi: 25.1 mm shorter

  XDA IIi:

  130 mm

  Y91 (Mediatek):

  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. XDA IIi

   Height:

   130 mm

   Width:

   70 mm

   Depth:

   19 mm +10.7 mm versus Y91 (Mediatek)

2. 2. Y91 (Mediatek)

   Height:

   155.1 mm +25.1 mm versus XDA IIi

   Width:

   75.1 mm +5.1 mm versus XDA IIi

   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. XDA IIi

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   37.9 cm²

2. 2. Y91 (Mediatek)

   Screen diagonal:

   6.22 in

   Aspect ratio (height:width):

   19:9

   Approximate rectangular screen area:

   96.6 cm²

Y91 (Mediatek) has approximately 154.6% more rectangular screen area than XDA IIi.

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.