BlackBerry Key2 vs Xiaomi Mi 9 Pro 5G

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.

• Display technology

  OLED versus LCD

  Key2:

  LCD

  Mi 9 Pro 5G:

  OLED

• Weight

  Key2: 28 g lighter

  Key2:

  168 g

  Mi 9 Pro 5G:

  196 g

• Width

  Key2: 2.8 mm narrower

  Key2:

  71.8 mm

  Mi 9 Pro 5G:

  74.6 mm

• Screen diagonal

  Key2: 1.89 in smaller diagonal

  Key2:

  4.5 in

  Mi 9 Pro 5G:

  6.39 in

• Memory variants

  At 128 GB storage

  Key2:

  6 GB RAM

  Mi 9 Pro 5G:

  8 GB RAM

• Chipset

  Key2:

  Qualcomm SDM660 Snapdragon 660 (14 nm)

  Mi 9 Pro 5G:

  Qualcomm SDM855 Snapdragon 855+ (7 nm)

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. Key2

   Height:

   151.4 mm

   Width:

   71.8 mm

   Depth:

   8.5 mm

2. 2. Mi 9 Pro 5G

   Height:

   157.2 mm +5.8 mm versus Key2

   Width:

   74.6 mm +2.8 mm versus Key2

   Depth:

   8.5 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. Key2

   Screen diagonal:

   4.5 in

   Aspect ratio (height:width):

   3:2

   Approximate rectangular screen area:

   60.3 cm²

2. 2. Mi 9 Pro 5G

   Screen diagonal:

   6.39 in

   Aspect ratio (height:width):

   19.5:9

   Approximate rectangular screen area:

   100.2 cm²

Mi 9 Pro 5G has approximately 66.2% more rectangular screen area than Key2.

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.