Microsoft Lumia 640 Dual SIM vs Nokia E71

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

  E71: 18 g lighter

  Lumia 640 Dual SIM:

  145 g

  E71:

  127 g

• Width

  E71: 15.2 mm narrower

  Lumia 640 Dual SIM:

  72.2 mm

  E71:

  57 mm

• Screen diagonal

  E71: 2.64 in smaller diagonal

  Lumia 640 Dual SIM:

  5 in

  E71:

  2.36 in

• Depth

  Lumia 640 Dual SIM: 1.2 mm thinner

  Lumia 640 Dual SIM:

  8.8 mm

  E71:

  10 mm

• Height

  E71: 27.3 mm shorter

  Lumia 640 Dual SIM:

  141.3 mm

  E71:

  114 mm

• Release year

  Lumia 640 Dual SIM:

  2015

  E71:

  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. Lumia 640 Dual SIM

   Height:

   141.3 mm +27.3 mm versus E71

   Width:

   72.2 mm +15.2 mm versus E71

   Depth:

   8.8 mm

2. 2. E71

   Height:

   114 mm

   Width:

   57 mm

   Depth:

   10 mm +1.2 mm versus Lumia 640 Dual SIM

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 640 Dual SIM

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

2. 2. E71

   Screen diagonal:

   2.36 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   17.2 cm²

Lumia 640 Dual SIM has approximately 299.6% more rectangular screen area than E71.

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.