BLU J4 vs Lava X28 Plus

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

  J4: 17 g lighter

  J4:

  158 g

  X28 Plus:

  175 g

• Width

  J4: 5.7 mm narrower

  J4:

  72.3 mm

  X28 Plus:

  78 mm

• Depth

  X28 Plus: 1 mm thinner

  J4:

  10 mm

  X28 Plus:

  9 mm

• Height

  J4: 4 mm shorter

  J4:

  151 mm

  X28 Plus:

  155 mm

• Release year

  J4:

  2019

  X28 Plus:

  2017

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. J4

   Height:

   151 mm

   Width:

   72.3 mm

   Depth:

   10 mm +1 mm versus X28 Plus

2. 2. X28 Plus

   Height:

   155 mm +4 mm versus J4

   Width:

   78 mm +5.7 mm versus J4

   Depth:

   9 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. J4

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   18:9

   Approximate rectangular screen area:

   78.1 cm²

2. 2. X28 Plus

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   83.4 cm²

X28 Plus has approximately 6.8% more rectangular screen area than J4.

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.