BlackBerry 7730 vs Xiaomi Redmi 8A Dual

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

  7730: 46 g lighter

  7730:

  142 g

  Redmi 8A Dual:

  188 g

• Width

  Redmi 8A Dual: 1.6 mm narrower

  7730:

  77 mm

  Redmi 8A Dual:

  75.4 mm

• Screen diagonal

  7730: 3.22 in smaller diagonal

  7730:

  3 in

  Redmi 8A Dual:

  6.22 in

• Depth

  Redmi 8A Dual: 8.6 mm thinner

  7730:

  18 mm

  Redmi 8A Dual:

  9.4 mm

• Height

  7730: 35.5 mm shorter

  7730:

  121 mm

  Redmi 8A Dual:

  156.5 mm

• Release year

  7730:

  2004

  Redmi 8A Dual:

  2020

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. 7730

   Height:

   121 mm

   Width:

   77 mm +1.6 mm versus Redmi 8A Dual

   Depth:

   18 mm +8.6 mm versus Redmi 8A Dual

2. 2. Redmi 8A Dual

   Height:

   156.5 mm +35.5 mm versus 7730

   Width:

   75.4 mm

   Depth:

   9.4 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. 7730

   Screen diagonal:

   3 in

   Aspect ratio (height:width):

   1:1

   Approximate rectangular screen area:

   29 cm²

2. 2. Redmi 8A Dual

   Screen diagonal:

   6.22 in

   Aspect ratio (height:width):

   19:9

   Approximate rectangular screen area:

   96.6 cm²

Redmi 8A Dual has approximately 232.6% more rectangular screen area than 7730.

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.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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.