Allview E4 vs Samsung Galaxy M21

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.

• Display technology

  OLED versus LCD

  E4:

  LCD

  Galaxy M21:

  OLED

• Weight

  E4: 58 g lighter

  E4:

  130 g

  Galaxy M21:

  188 g

• Width

  E4: 4.9 mm narrower

  E4:

  70.2 mm

  Galaxy M21:

  75.1 mm

• Screen diagonal

  E4: 0.9 in smaller diagonal

  E4:

  5.5 in

  Galaxy M21:

  6.4 in

• Chipset

  E4:

  Mediatek MT6753 (28 nm)

  Galaxy M21:

  Exynos 9611 (10nm)

• Rear camera layout

  E4:

  Single

  Galaxy M21:

  Triple

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. E4

   Height:

   140.7 mm

   Width:

   70.2 mm

   Depth:

   8.6 mm

2. 2. Galaxy M21

   Height:

   159 mm +18.3 mm versus E4

   Width:

   75.1 mm +4.9 mm versus E4

   Depth:

   8.9 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. E4

   E4: Screen geometry unavailable or conflicting.

2. 2. Galaxy M21

   Screen diagonal:

   6.4 in

   Aspect ratio (height:width):

   19.5:9

   Approximate rectangular screen area:

   100.5 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.