Motorola RIZR Z8 vs Panasonic P91

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

  RIZR Z8: 49 g lighter

  RIZR Z8:

  112 g

  P91:

  161 g

• Width

  RIZR Z8: 22.4 mm narrower

  RIZR Z8:

  50 mm

  P91:

  72.4 mm

• Screen diagonal

  RIZR Z8: 2.8 in smaller diagonal

  RIZR Z8:

  2.2 in

  P91:

  5 in

• Chipset

  RIZR Z8:

  TI OMAP 2420

  P91:

  Mediatek MT6737M (28 nm)

• Depth

  P91: 4.9 mm thinner

  RIZR Z8:

  15 mm

  P91:

  10.1 mm

• Height

  RIZR Z8: 35.7 mm shorter

  RIZR Z8:

  109 mm

  P91:

  144.7 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. RIZR Z8

   Height:

   109 mm

   Width:

   50 mm

   Depth:

   15 mm +4.9 mm versus P91

2. 2. P91

   Height:

   144.7 mm +35.7 mm versus RIZR Z8

   Width:

   72.4 mm +22.4 mm versus RIZR Z8

   Depth:

   10.1 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. RIZR Z8

   Screen diagonal:

   2.2 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   15 cm²

2. 2. P91

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

P91 has approximately 359.8% more rectangular screen area than RIZR Z8.

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.