Archos 55b Cobalt vs O2 XDA Serra

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

  XDA Serra: 23 g lighter

  55b Cobalt:

  188 g

  XDA Serra:

  165 g

• Screen diagonal

  XDA Serra: 2.7 in smaller diagonal

  55b Cobalt:

  5.5 in

  XDA Serra:

  2.8 in

• Chipset

  55b Cobalt:

  Qualcomm MSM8909 Snapdragon 210 (28 nm)

  XDA Serra:

  Qualcomm MSM7201A

• Release year

  55b Cobalt:

  2017

  XDA Serra:

  2008

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. 55b Cobalt

   Height:

   Unknown

   Width:

   Unknown

   Depth:

   Unknown

   Unavailable dimensions are omitted from the drawing.

2. 2. XDA Serra

   Height:

   102 mm

   Width:

   51 mm

   Depth:

   18.1 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. 55b Cobalt

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   83.4 cm²

2. 2. XDA Serra

   Screen diagonal:

   2.8 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   24.3 cm²

55b Cobalt has approximately 243.5% more rectangular screen area than XDA Serra.

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.