Nokia Lumia 638 vs Plum Compass

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

  Lumia 638: 32.7 g lighter

  Lumia 638:

  136 g

  Compass:

  168.7 g

• Width

  Lumia 638: 5.9 mm narrower

  Lumia 638:

  66.7 mm

  Compass:

  72.6 mm

• Screen diagonal

  Lumia 638: 0.5 in smaller diagonal

  Lumia 638:

  4.5 in

  Compass:

  5 in

• Chipset

  Lumia 638:

  Qualcomm Snapdragon 400 (28 nm)

  Compass:

  Spreadtrum SC7731C

• Depth

  Lumia 638: 0.6 mm thinner

  Lumia 638:

  9.2 mm

  Compass:

  9.8 mm

• Height

  Lumia 638: 16.5 mm shorter

  Lumia 638:

  129.5 mm

  Compass:

  146 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. Lumia 638

   Height:

   129.5 mm

   Width:

   66.7 mm

   Depth:

   9.2 mm

2. 2. Compass

   Height:

   146 mm +16.5 mm versus Lumia 638

   Width:

   72.6 mm +5.9 mm versus Lumia 638

   Depth:

   9.8 mm +0.6 mm versus Lumia 638

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. Lumia 638

   Screen diagonal:

   4.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   55.8 cm²

2. 2. Compass

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

Compass has approximately 23.5% more rectangular screen area than Lumia 638.

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.