Apple iPhone 3G vs i-mate JAM

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

  iPhone 3G: 17 g lighter

  iPhone 3G:

  133 g

  JAM:

  150 g

• Width

  JAM: 4.1 mm narrower

  iPhone 3G:

  62.1 mm

  JAM:

  58 mm

• Screen diagonal

  JAM: 0.7 in smaller diagonal

  iPhone 3G:

  3.5 in

  JAM:

  2.8 in

• Depth

  iPhone 3G: 5.7 mm thinner

  iPhone 3G:

  12.3 mm

  JAM:

  18 mm

• Height

  JAM: 7.5 mm shorter

  iPhone 3G:

  115.5 mm

  JAM:

  108 mm

• Release year

  iPhone 3G:

  2008

  JAM:

  2004

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. iPhone 3G

   Height:

   115.5 mm +7.5 mm versus JAM

   Width:

   62.1 mm +4.1 mm versus JAM

   Depth:

   12.3 mm

2. 2. JAM

   Height:

   108 mm

   Width:

   58 mm

   Depth:

   18 mm +5.7 mm versus iPhone 3G

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. iPhone 3G

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   3:2

   Approximate rectangular screen area:

   36.5 cm²

2. 2. JAM

   Screen diagonal:

   2.8 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   24.3 cm²

iPhone 3G has approximately 50.2% 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.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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.