Samsung Galaxy M21 vs verykool RS90

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

  Galaxy M21:

  OLED

  RS90:

  LCD

• Weight

  Galaxy M21: 13 g lighter

  Galaxy M21:

  188 g

  RS90:

  201 g

• Screen diagonal

  RS90: 1.9 in smaller diagonal

  Galaxy M21:

  6.4 in

  RS90:

  4.5 in

• Rear camera layout

  Galaxy M21:

  Triple

  RS90:

  Single

• Depth

  Galaxy M21: 3.2 mm thinner

  Galaxy M21:

  8.9 mm

  RS90:

  12.1 mm

• Height

  RS90: 15 mm shorter

  Galaxy M21:

  159 mm

  RS90:

  144 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. Galaxy M21

   Height:

   159 mm +15 mm versus RS90

   Width:

   75.1 mm

   Depth:

   8.9 mm

2. 2. RS90

   Height:

   144 mm

   Width:

   75.6 mm

   Depth:

   12.1 mm +3.2 mm versus Galaxy M21

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. Galaxy M21

   Screen diagonal:

   6.4 in

   Aspect ratio (height:width):

   19.5:9

   Approximate rectangular screen area:

   100.5 cm²

2. 2. RS90

   Screen diagonal:

   4.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   55.8 cm²

Galaxy M21 has approximately 80.1% more rectangular screen area than RS90.

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.