BLU J4 vs LG KT770

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

  KT770: 20.8 mm narrower

  J4:

  72.3 mm

  KT770:

  51.5 mm

• Screen diagonal

  KT770: 2.7 in smaller diagonal

  J4:

  5.5 in

  KT770:

  2.8 in

• Depth

  J4: 5.8 mm thinner

  J4:

  10 mm

  KT770:

  15.8 mm

• Height

  KT770: 40 mm shorter

  J4:

  151 mm

  KT770:

  111 mm

• Release year

  J4:

  2019

  KT770:

  2009

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 +40 mm versus KT770

   Width:

   72.3 mm +20.8 mm versus KT770

   Depth:

   10 mm

   Weight:

   158 g

2. 2. KT770

   Height:

   111 mm

   Width:

   51.5 mm

   Depth:

   15.8 mm +5.8 mm versus J4

   Weight:

   Unknown

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. KT770

   Screen diagonal:

   2.8 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   22.3 cm²

J4 has approximately 249.8% more rectangular screen area than KT770.

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.