Huawei Mate 30 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.

• Weight

  Galaxy J7 Duo: 22 g lighter

  Mate 30:

  196 g

  Galaxy J7 Duo:

  174 g

• Width

  Mate 30: 1.1 mm narrower

  Mate 30:

  76.1 mm

  Galaxy J7 Duo:

  77.2 mm

• Screen diagonal

  Galaxy J7 Duo: 1.12 in smaller diagonal

  Mate 30:

  6.62 in

  Galaxy J7 Duo:

  5.5 in

• Chipset

  Mate 30:

  HiSilicon Kirin 990 (7 nm+)

  Galaxy J7 Duo:

  Exynos 7885 Octa (14 nm)

• Rear camera layout

  Mate 30:

  Triple

  Galaxy J7 Duo:

  Dual

• Height

  Galaxy J7 Duo: 7.3 mm shorter

  Mate 30:

  160.8 mm

  Galaxy J7 Duo:

  153.5 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. Mate 30

   Height:

   160.8 mm +7.3 mm versus Galaxy J7 Duo

   Width:

   76.1 mm

   Depth:

   8.4 mm

2. 2. Galaxy J7 Duo

   Height:

   153.5 mm

   Width:

   77.2 mm +1.1 mm versus Mate 30

   Depth:

   8.2 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. Mate 30

   Screen diagonal:

   6.62 in

   Aspect ratio (height:width):

   19.5:9

   Approximate rectangular screen area:

   107.6 cm²

2. 2. Galaxy J7 Duo

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   83.4 cm²

Mate 30 has approximately 29% more rectangular screen area than Galaxy J7 Duo.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

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.