BLU J4 vs Lava Iris X1

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.

• WeightIris X1: 20 g lighterIris X1: 138 g · J4: 158 g
• WidthIris X1: 6.3 mm narrowerIris X1: 66 mm · J4: 72.3 mm
• Screen diagonalIris X1: 1 in smaller diagonalIris X1: 4.5 in · J4: 5.5 in
• DepthIris X1: 1.1 mm thinnerIris X1: 8.9 mm · J4: 10 mm
• HeightIris X1: 17 mm shorterIris X1: 134 mm · J4: 151 mm
• Release year2019 / 2014J4: 2019 · Iris X1: 2014

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+17 mm versus Iris X1

   Width

   72.3 mm+6.3 mm versus Iris X1

   Depth

   10 mm+1.1 mm versus Iris X1

   Weight

   158 g

2. 2. Iris X1

   Height

   134 mm

   Width

   66 mm

   Depth

   8.9 mm

   Weight

   138 g

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 5.5 in · 18:9 About 78.1 cm² rectangular area
2. 2. Iris X1 4.5 in · 16:9 About 55.8 cm² rectangular area

J4 has approximately 39.8% more rectangular screen area than Iris X1.

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.