O2 XDA Argon vs vivo X21i

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

  X21i: 41 g lighter

  XDA Argon:

  200 g

  X21i:

  159 g

• Width

  XDA Argon: 5 mm narrower

  XDA Argon:

  70 mm

  X21i:

  75 mm

• Screen diagonal

  XDA Argon: 2.78 in smaller diagonal

  XDA Argon:

  3.5 in

  X21i:

  6.28 in

• Rear camera layout

  XDA Argon:

  Single

  X21i:

  Dual

• Depth

  X21i: 11.8 mm thinner

  XDA Argon:

  18.8 mm

  X21i:

  7 mm

• Height

  XDA Argon: 24.4 mm shorter

  XDA Argon:

  130 mm

  X21i:

  154.4 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 Argon

   Height:

   130 mm

   Width:

   70 mm

   Depth:

   18.8 mm +11.8 mm versus X21i

2. 2. X21i

   Height:

   154.4 mm +24.4 mm versus XDA Argon

   Width:

   75 mm +5 mm versus XDA Argon

   Depth:

   7 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 Argon

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   37.9 cm²

2. 2. X21i

   Screen diagonal:

   6.28 in

   Aspect ratio (height:width):

   19:9

   Approximate rectangular screen area:

   98.4 cm²

X21i has approximately 159.5% more rectangular screen area than XDA Argon.

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.