O2 XDA II vs Plum Sync 4.0b

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

  Sync 4.0b: 105.2 g lighter

  XDA II:

  190 g

  Sync 4.0b:

  84.8 g

• Width

  Sync 4.0b: 6.5 mm narrower

  XDA II:

  70 mm

  Sync 4.0b:

  63.5 mm

• Screen diagonal

  XDA II: 0.5 in smaller diagonal

  XDA II:

  3.5 in

  Sync 4.0b:

  4 in

• Depth

  Sync 4.0b: 8.6 mm thinner

  XDA II:

  19 mm

  Sync 4.0b:

  10.4 mm

• Height

  Sync 4.0b: 5.5 mm shorter

  XDA II:

  130 mm

  Sync 4.0b:

  124.5 mm

• Release year

  XDA II:

  2003

  Sync 4.0b:

  2015

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. XDA II

   Height:

   130 mm +5.5 mm versus Sync 4.0b

   Width:

   70 mm +6.5 mm versus Sync 4.0b

   Depth:

   19 mm +8.6 mm versus Sync 4.0b

2. 2. Sync 4.0b

   Height:

   124.5 mm

   Width:

   63.5 mm

   Depth:

   10.4 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. XDA II

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   37.9 cm²

2. 2. Sync 4.0b

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   45.5 cm²

Sync 4.0b has approximately 20% more rectangular screen area than XDA II.

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.