Archos 50 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

  50 Cobalt: 30 g lighter

  50 Cobalt:

  135 g

  XDA Serra:

  165 g

• Width

  XDA Serra: 20.5 mm narrower

  50 Cobalt:

  71.5 mm

  XDA Serra:

  51 mm

• Screen diagonal

  XDA Serra: 2.7 in smaller diagonal

  50 Cobalt:

  5.5 in

  XDA Serra:

  2.8 in

• Chipset

  50 Cobalt:

  Mediatek MT6735P (28 nm)

  XDA Serra:

  Qualcomm MSM7201A

• Depth

  50 Cobalt: 8.9 mm thinner

  50 Cobalt:

  9.2 mm

  XDA Serra:

  18.1 mm

• Height

  XDA Serra: 39.5 mm shorter

  50 Cobalt:

  141.5 mm

  XDA Serra:

  102 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. 50 Cobalt

   Height:

   141.5 mm +39.5 mm versus XDA Serra

   Width:

   71.5 mm +20.5 mm versus XDA Serra

   Depth:

   9.2 mm

2. 2. XDA Serra

   Height:

   102 mm

   Width:

   51 mm

   Depth:

   18.1 mm +8.9 mm versus 50 Cobalt

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.

At least two phones need compatible screen dimensions for a drawing.

1. 1. 50 Cobalt

   50 Cobalt: Screen geometry unavailable or conflicting.

2. 2. XDA Serra

   Screen diagonal:

   2.8 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   24.3 cm²

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.