Asus ROG Phone 3 vs Samsung Galaxy S9

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 S9: 77 g lighter

  ROG Phone 3:

  240 g

  Galaxy S9:

  163 g

• Width

  Galaxy S9: 9.3 mm narrower

  ROG Phone 3:

  78 mm

  Galaxy S9:

  68.7 mm

• Screen diagonal

  Galaxy S9: 0.79 in smaller diagonal

  ROG Phone 3:

  6.59 in

  Galaxy S9:

  5.8 in

• Rear camera layout

  ROG Phone 3:

  Triple

  Galaxy S9:

  Single

• Depth

  Galaxy S9: 1.4 mm thinner

  ROG Phone 3:

  9.9 mm

  Galaxy S9:

  8.5 mm

• Height

  Galaxy S9: 23.3 mm shorter

  ROG Phone 3:

  171 mm

  Galaxy S9:

  147.7 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 +23.3 mm versus Galaxy S9

   Width:

   78 mm +9.3 mm versus Galaxy S9

   Depth:

   9.9 mm +1.4 mm versus Galaxy S9

2. 2. Galaxy S9

   Height:

   147.7 mm

   Width:

   68.7 mm

   Depth:

   8.5 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 S9

   Screen diagonal:

   5.8 in

   Aspect ratio (height:width):

   18.5:9

   Approximate rectangular screen area:

   85.4 cm²

ROG Phone 3 has approximately 24.9% more rectangular screen area than Galaxy S9.

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.