Coolpad Roar vs Samsung Galaxy J7 Duo

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

  Roar:

  LCD

  Galaxy J7 Duo:

  OLED

• Width

  Roar: 11.8 mm narrower

  Roar:

  65.4 mm

  Galaxy J7 Duo:

  77.2 mm

• Screen diagonal

  Roar: 1 in smaller diagonal

  Roar:

  4.5 in

  Galaxy J7 Duo:

  5.5 in

• Chipset

  Roar:

  Mediatek MT6580 (28 nm)

  Galaxy J7 Duo:

  Exynos 7885 Octa (14 nm)

• Rear camera layout

  Roar:

  Single

  Galaxy J7 Duo:

  Dual

• Depth

  Galaxy J7 Duo: 0.8 mm thinner

  Roar:

  9 mm

  Galaxy J7 Duo:

  8.2 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. Roar

   Height:

   133 mm

   Width:

   65.4 mm

   Depth:

   9 mm +0.8 mm versus Galaxy J7 Duo

   Weight:

   Unknown

2. 2. Galaxy J7 Duo

   Height:

   153.5 mm +20.5 mm versus Roar

   Width:

   77.2 mm +11.8 mm versus Roar

   Depth:

   8.2 mm

   Weight:

   174 g

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. Roar

   Screen diagonal:

   4.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   55.8 cm²

2. 2. Galaxy J7 Duo

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   83.4 cm²

Galaxy J7 Duo has approximately 49.4% more rectangular screen area than Roar.

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.