Plum Sync 4.0 vs Xiaomi Redmi Note 9 Pro

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

  Sync 4.0: 112 g lighter

  Sync 4.0:

  97 g

  Redmi Note 9 Pro:

  209 g

• Width

  Sync 4.0: 13.1 mm narrower

  Sync 4.0:

  63.6 mm

  Redmi Note 9 Pro:

  76.7 mm

• Screen diagonal

  Sync 4.0: 2.67 in smaller diagonal

  Sync 4.0:

  4 in

  Redmi Note 9 Pro:

  6.67 in

• Chipset

  Sync 4.0:

  Mediatek MT6572M (28 nm)

  Redmi Note 9 Pro:

  Qualcomm SM7125 Snapdragon 720G (8 nm)

• Rear camera layout

  Sync 4.0:

  Single

  Redmi Note 9 Pro:

  Quad

• Depth

  Redmi Note 9 Pro: 1 mm thinner

  Sync 4.0:

  9.8 mm

  Redmi Note 9 Pro:

  8.8 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. Sync 4.0

   Height:

   120.4 mm

   Width:

   63.6 mm

   Depth:

   9.8 mm +1 mm versus Redmi Note 9 Pro

2. 2. Redmi Note 9 Pro

   Height:

   165.8 mm +45.4 mm versus Sync 4.0

   Width:

   76.7 mm +13.1 mm versus Sync 4.0

   Depth:

   8.8 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. Sync 4.0

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   44.1 cm²

2. 2. Redmi Note 9 Pro

   Screen diagonal:

   6.67 in

   Aspect ratio (height:width):

   20:9

   Approximate rectangular screen area:

   107.4 cm²

Redmi Note 9 Pro has approximately 143.5% more rectangular screen area than Sync 4.0.

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.