Samsung Galaxy J7 Max vs vivo X30

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 Max: 17.5 g lighter

  Galaxy J7 Max:

  179 g

  X30:

  196.5 g

• Width

  X30: 4.7 mm narrower

  Galaxy J7 Max:

  78.8 mm

  X30:

  74.1 mm

• Screen diagonal

  Galaxy J7 Max: 0.74 in smaller diagonal

  Galaxy J7 Max:

  5.7 in

  X30:

  6.44 in

• Chipset

  Galaxy J7 Max:

  Mediatek MT6757 Helio P20 (16 nm)

  X30:

  Exynos 980 (8 nm)

• Rear camera layout

  Galaxy J7 Max:

  Single

  X30:

  Triple

• Depth

  Galaxy J7 Max: 0.7 mm thinner

  Galaxy J7 Max:

  8.1 mm

  X30:

  8.8 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 J7 Max

   Height:

   156.7 mm

   Width:

   78.8 mm +4.7 mm versus X30

   Depth:

   8.1 mm

2. 2. X30

   Height:

   158.5 mm

   Width:

   74.1 mm

   Depth:

   8.8 mm +0.7 mm versus Galaxy J7 Max

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 J7 Max

   Screen diagonal:

   5.7 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   89.6 cm²

2. 2. X30

   Screen diagonal:

   6.44 in

   Aspect ratio (height:width):

   20:9

   Approximate rectangular screen area:

   100.1 cm²

X30 has approximately 11.8% more rectangular screen area than Galaxy J7 Max.

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.