Microsoft Lumia 640 Dual SIM vs Sharp Z2

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 640 Dual SIM: 15 g lighter

  Lumia 640 Dual SIM:

  145 g

  Z2:

  160 g

• Width

  Lumia 640 Dual SIM: 3.8 mm narrower

  Lumia 640 Dual SIM:

  72.2 mm

  Z2:

  76 mm

• Screen diagonal

  Lumia 640 Dual SIM: 0.5 in smaller diagonal

  Lumia 640 Dual SIM:

  5 in

  Z2:

  5.5 in

• Chipset

  Lumia 640 Dual SIM:

  Qualcomm MSM8926 Snapdragon 400 (28 nm)

  Z2:

  Mediatek MT6797 Helio X20 (20 nm)

• Height

  Lumia 640 Dual SIM: 11.7 mm shorter

  Lumia 640 Dual SIM:

  141.3 mm

  Z2:

  153 mm

• Release year

  Lumia 640 Dual SIM:

  2015

  Z2:

  2016

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

   Width:

   72.2 mm

   Depth:

   8.8 mm

2. 2. Z2

   Height:

   153 mm +11.7 mm versus Lumia 640 Dual SIM

   Width:

   76 mm +3.8 mm versus Lumia 640 Dual SIM

   Depth:

   8.4 mm

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. Z2

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   83.4 cm²

Z2 has approximately 21% more rectangular screen area than Lumia 640 Dual SIM.

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.