BLU J4 vs BQ Aquaris M5.5

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.

• Width

  J4: 3.2 mm narrower

  J4:

  72.3 mm

  Aquaris M5.5:

  75.5 mm

• Depth

  Aquaris M5.5: 1.6 mm thinner

  J4:

  10 mm

  Aquaris M5.5:

  8.4 mm

• Release year

  J4:

  2019

  Aquaris M5.5:

  2015

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 +1.6 mm versus Aquaris M5.5

2. 2. Aquaris M5.5

   Height:

   151.8 mm

   Width:

   75.5 mm +3.2 mm versus J4

   Depth:

   8.4 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. J4

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   18:9

   Approximate rectangular screen area:

   78.1 cm²

2. 2. Aquaris M5.5

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   83.4 cm²

Aquaris M5.5 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.