i-mate JAM vs Lava Z81

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

  Z81: 9 g lighter

  JAM:

  150 g

  Z81:

  141 g

• Width

  JAM: 15 mm narrower

  JAM:

  58 mm

  Z81:

  73 mm

• Screen diagonal

  JAM: 2.9 in smaller diagonal

  JAM:

  2.8 in

  Z81:

  5.7 in

• Depth

  Z81: 10.1 mm thinner

  JAM:

  18 mm

  Z81:

  7.9 mm

• Height

  JAM: 44.2 mm shorter

  JAM:

  108 mm

  Z81:

  152.2 mm

• Release year

  JAM:

  2004

  Z81:

  2018

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. JAM

   Height:

   108 mm

   Width:

   58 mm

   Depth:

   18 mm +10.1 mm versus Z81

2. 2. Z81

   Height:

   152.2 mm +44.2 mm versus JAM

   Width:

   73 mm +15 mm versus JAM

   Depth:

   7.9 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. JAM

   Screen diagonal:

   2.8 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   24.3 cm²

2. 2. Z81

   Screen diagonal:

   5.7 in

   Aspect ratio (height:width):

   18:9

   Approximate rectangular screen area:

   83.8 cm²

Z81 has approximately 245.3% more rectangular screen area than JAM.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

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.