Coolpad Cool S1 vs O2 XDA Star

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 Star: 48 g lighter

  Cool S1:

  168 g

  XDA Star:

  120 g

• Width

  XDA Star: 19.7 mm narrower

  Cool S1:

  74.7 mm

  XDA Star:

  55 mm

• Screen diagonal

  XDA Star: 2.9 in smaller diagonal

  Cool S1:

  5.5 in

  XDA Star:

  2.6 in

• Chipset

  Cool S1:

  Qualcomm MSM8996 Snapdragon 821 (14 nm)

  XDA Star:

  Qualcomm MSM7200

• Depth

  Cool S1: 8.3 mm thinner

  Cool S1:

  7.5 mm

  XDA Star:

  15.8 mm

• Height

  XDA Star: 44.4 mm shorter

  Cool S1:

  151.4 mm

  XDA Star:

  107 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. Cool S1

   Height:

   151.4 mm +44.4 mm versus XDA Star

   Width:

   74.7 mm +19.7 mm versus XDA Star

   Depth:

   7.5 mm

2. 2. XDA Star

   Height:

   107 mm

   Width:

   55 mm

   Depth:

   15.8 mm +8.3 mm versus Cool S1

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. Cool S1

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   83.4 cm²

2. 2. XDA Star

   Screen diagonal:

   2.6 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   20.9 cm²

Cool S1 has approximately 298.4% more rectangular screen area than XDA Star.

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.