Nokia E90 vs vivo X21 UD

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

  X21 UD: 53.8 g lighter

  E90:

  210 g

  X21 UD:

  156.2 g

• Width

  E90: 17.8 mm narrower

  E90:

  57 mm

  X21 UD:

  74.8 mm

• Screen diagonal

  E90: 2.28 in smaller diagonal

  E90:

  4 in

  X21 UD:

  6.28 in

• Rear camera layout

  E90:

  Single

  X21 UD:

  Dual

• Depth

  X21 UD: 12.6 mm thinner

  E90:

  20 mm

  X21 UD:

  7.4 mm

• Height

  E90: 22.5 mm shorter

  E90:

  132 mm

  X21 UD:

  154.5 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. E90

   Height:

   132 mm

   Width:

   57 mm

   Depth:

   20 mm +12.6 mm versus X21 UD

2. 2. X21 UD

   Height:

   154.5 mm +22.5 mm versus E90

   Width:

   74.8 mm +17.8 mm versus E90

   Depth:

   7.4 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.

At least two phones need compatible screen dimensions for a drawing.

1. 1. E90

   E90: Screen geometry unavailable or conflicting.

2. 2. X21 UD

   Screen diagonal:

   6.28 in

   Aspect ratio (height:width):

   19:9

   Approximate rectangular screen area:

   98.4 cm²

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.