BLU J4 vs verykool sl5050 Phantom

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

  J4:

  LCD

  sl5050 Phantom:

  OLED

• Weight

  sl5050 Phantom: 37 g lighter

  J4:

  158 g

  sl5050 Phantom:

  121 g

• Width

  sl5050 Phantom: 1.8 mm narrower

  J4:

  72.3 mm

  sl5050 Phantom:

  70.5 mm

• Screen diagonal

  sl5050 Phantom: 0.5 in smaller diagonal

  J4:

  5.5 in

  sl5050 Phantom:

  5 in

• Depth

  sl5050 Phantom: 2.8 mm thinner

  J4:

  10 mm

  sl5050 Phantom:

  7.2 mm

• Height

  sl5050 Phantom: 5.5 mm shorter

  J4:

  151 mm

  sl5050 Phantom:

  145.5 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. J4

   Height:

   151 mm +5.5 mm versus sl5050 Phantom

   Width:

   72.3 mm +1.8 mm versus sl5050 Phantom

   Depth:

   10 mm +2.8 mm versus sl5050 Phantom

2. 2. sl5050 Phantom

   Height:

   145.5 mm

   Width:

   70.5 mm

   Depth:

   7.2 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. J4

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   18:9

   Approximate rectangular screen area:

   78.1 cm²

2. 2. sl5050 Phantom

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

J4 has approximately 13.3% more rectangular screen area than sl5050 Phantom.

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.