A1 Alpha vs Microsoft Lumia 640 XL

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

  Alpha: 21 g lighter

  Alpha:

  150 g

  Lumia 640 XL:

  171 g

• Width

  Alpha: 5.7 mm narrower

  Alpha:

  75.8 mm

  Lumia 640 XL:

  81.5 mm

• Screen diagonal

  Lumia 640 XL: 0.56 in smaller diagonal

  Alpha:

  6.26 in

  Lumia 640 XL:

  5.7 in

• Chipset

  Alpha:

  Unisoc SC9863A (28nm)

  Lumia 640 XL:

  Qualcomm MSM8226 Snapdragon 400 (28 nm)

• Rear camera layout

  Alpha:

  Dual

  Lumia 640 XL:

  Single

• Depth

  Alpha: 0.9 mm thinner

  Alpha:

  8.1 mm

  Lumia 640 XL:

  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. Alpha

   Height:

   151.7 mm

   Width:

   75.8 mm

   Depth:

   8.1 mm

2. 2. Lumia 640 XL

   Height:

   157.9 mm +6.2 mm versus Alpha

   Width:

   81.5 mm +5.7 mm versus Alpha

   Depth:

   9 mm +0.9 mm versus Alpha

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. Alpha

   Screen diagonal:

   6.26 in

   Aspect ratio (height:width):

   19:9

   Approximate rectangular screen area:

   97.8 cm²

2. 2. Lumia 640 XL

   Screen diagonal:

   5.7 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   89.6 cm²

Alpha has approximately 9.2% more rectangular screen area than Lumia 640 XL.

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.