Coolpad Cool S1 vs Xiaomi Redmi 4a

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

  Redmi 4a: 36.5 g lighter

  Cool S1:

  168 g

  Redmi 4a:

  131.5 g

• Width

  Redmi 4a: 4.3 mm narrower

  Cool S1:

  74.7 mm

  Redmi 4a:

  70.4 mm

• Screen diagonal

  Redmi 4a: 0.5 in smaller diagonal

  Cool S1:

  5.5 in

  Redmi 4a:

  5 in

• Chipset

  Cool S1:

  Qualcomm MSM8996 Snapdragon 821 (14 nm)

  Redmi 4a:

  Qualcomm MSM8917 Snapdragon 425 (28 nm)

• Depth

  Cool S1: 1 mm thinner

  Cool S1:

  7.5 mm

  Redmi 4a:

  8.5 mm

• Height

  Redmi 4a: 11.5 mm shorter

  Cool S1:

  151.4 mm

  Redmi 4a:

  139.9 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 +11.5 mm versus Redmi 4a

   Width:

   74.7 mm +4.3 mm versus Redmi 4a

   Depth:

   7.5 mm

2. 2. Redmi 4a

   Height:

   139.9 mm

   Width:

   70.4 mm

   Depth:

   8.5 mm +1 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. Redmi 4a

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

Cool S1 has approximately 21% more rectangular screen area than Redmi 4a.

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.