BLU J2 vs Motorola Moto Z4

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

  J2:

  LCD

  Moto Z4:

  OLED

• Weight

  J2: 19 g lighter

  J2:

  146 g

  Moto Z4:

  165 g

• Width

  J2: 1.9 mm narrower

  J2:

  73.1 mm

  Moto Z4:

  75 mm

• Screen diagonal

  J2: 1.4 in smaller diagonal

  J2:

  5 in

  Moto Z4:

  6.4 in

• Depth

  Moto Z4: 2.9 mm thinner

  J2:

  10.3 mm

  Moto Z4:

  7.4 mm

• Height

  J2: 14 mm shorter

  J2:

  144 mm

  Moto Z4:

  158 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. J2

   Height:

   144 mm

   Width:

   73.1 mm

   Depth:

   10.3 mm +2.9 mm versus Moto Z4

2. 2. Moto Z4

   Height:

   158 mm +14 mm versus J2

   Width:

   75 mm +1.9 mm versus J2

   Depth:

   7.4 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. J2

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

2. 2. Moto Z4

   Screen diagonal:

   6.4 in

   Aspect ratio (height:width):

   19.5:9

   Approximate rectangular screen area:

   100.5 cm²

Moto Z4 has approximately 45.9% more rectangular screen area than J2.

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.