Asus ROG Phone 3 vs Samsung Galaxy M20

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

  Galaxy M20: 54 g lighter

  ROG Phone 3:

  240 g

  Galaxy M20:

  186 g

• Width

  Galaxy M20: 3.5 mm narrower

  ROG Phone 3:

  78 mm

  Galaxy M20:

  74.5 mm

• Screen diagonal

  Galaxy M20: 0.29 in smaller diagonal

  ROG Phone 3:

  6.59 in

  Galaxy M20:

  6.3 in

• Rear camera layout

  ROG Phone 3:

  Triple

  Galaxy M20:

  Dual

• Depth

  Galaxy M20: 1.1 mm thinner

  ROG Phone 3:

  9.9 mm

  Galaxy M20:

  8.8 mm

• Height

  Galaxy M20: 14.6 mm shorter

  ROG Phone 3:

  171 mm

  Galaxy M20:

  156.4 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. ROG Phone 3

   Height:

   171 mm +14.6 mm versus Galaxy M20

   Width:

   78 mm +3.5 mm versus Galaxy M20

   Depth:

   9.9 mm +1.1 mm versus Galaxy M20

2. 2. Galaxy M20

   Height:

   156.4 mm

   Width:

   74.5 mm

   Depth:

   8.8 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. ROG Phone 3

   Screen diagonal:

   6.59 in

   Aspect ratio (height:width):

   19.5:9

   Approximate rectangular screen area:

   106.6 cm²

2. 2. Galaxy M20

   Screen diagonal:

   6.3 in

   Aspect ratio (height:width):

   19.5:9

   Approximate rectangular screen area:

   97.4 cm²

ROG Phone 3 has approximately 9.4% more rectangular screen area than Galaxy M20.

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.