vivo X21i vs Xolo Q900

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

  Q900: 21 g lighter

  X21i:

  159 g

  Q900:

  138 g

• Width

  Q900: 5 mm narrower

  X21i:

  75 mm

  Q900:

  70 mm

• Screen diagonal

  Q900: 1.58 in smaller diagonal

  X21i:

  6.28 in

  Q900:

  4.7 in

• Chipset

  X21i:

  Mediatek MT6771 Helio P60 (12 nm)

  Q900:

  Mediatek MT6589 (28 nm)

• Rear camera layout

  X21i:

  Dual

  Q900:

  Single

• Depth

  X21i: 2.9 mm thinner

  X21i:

  7 mm

  Q900:

  9.9 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. X21i

   Height:

   154.4 mm +17.4 mm versus Q900

   Width:

   75 mm +5 mm versus Q900

   Depth:

   7 mm

2. 2. Q900

   Height:

   137 mm

   Width:

   70 mm

   Depth:

   9.9 mm +2.9 mm versus X21i

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. X21i

   Screen diagonal:

   6.28 in

   Aspect ratio (height:width):

   19:9

   Approximate rectangular screen area:

   98.4 cm²

2. 2. Q900

   Screen diagonal:

   4.7 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   60.9 cm²

X21i has approximately 61.6% more rectangular screen area than Q900.

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.