Samsung i637 Jack vs ZTE Racer II

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

  Racer II: 5.6 mm narrower

  i637 Jack:

  61 mm

  Racer II:

  55.4 mm

• Screen diagonal

  i637 Jack: 0.4 in smaller diagonal

  i637 Jack:

  2.4 in

  Racer II:

  2.8 in

• Depth

  i637 Jack: 0.8 mm thinner

  i637 Jack:

  12.7 mm

  Racer II:

  13.5 mm

• Height

  Racer II: 13 mm shorter

  i637 Jack:

  117 mm

  Racer II:

  104 mm

• Release year

  i637 Jack:

  2009

  Racer II:

  2011

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. i637 Jack

   Height:

   117 mm +13 mm versus Racer II

   Width:

   61 mm +5.6 mm versus Racer II

   Depth:

   12.7 mm

2. 2. Racer II

   Height:

   104 mm

   Width:

   55.4 mm

   Depth:

   13.5 mm +0.8 mm versus i637 Jack

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. i637 Jack

   Screen diagonal:

   2.4 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   17.8 cm²

2. 2. Racer II

   Screen diagonal:

   2.8 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   24.3 cm²

Racer II has approximately 36.1% more rectangular screen area than i637 Jack.

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.