Oppo Ace2 vs Xiaomi Redmi Note 9S

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

  Ace2:

  OLED

  Redmi Note 9S:

  LCD

• Weight

  Ace2: 23 g lighter

  Ace2:

  186 g

  Redmi Note 9S:

  209 g

• Width

  Ace2: 1.3 mm narrower

  Ace2:

  75.4 mm

  Redmi Note 9S:

  76.7 mm

• Memory variants

  At 128 GB storage

  Ace2:

  8 GB RAM

  Redmi Note 9S:

  6 GB RAM

• Chipset

  Ace2:

  Qualcomm SM8250 Snapdragon 865 (7 nm+)

  Redmi Note 9S:

  Qualcomm SM7125 Snapdragon 720G (8 nm)

• Height

  Ace2: 5.8 mm shorter

  Ace2:

  160 mm

  Redmi Note 9S:

  165.8 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. Ace2

   Height:

   160 mm

   Width:

   75.4 mm

   Depth:

   8.6 mm

2. 2. Redmi Note 9S

   Height:

   165.8 mm +5.8 mm versus Ace2

   Width:

   76.7 mm +1.3 mm versus Ace2

   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. Ace2

   Screen diagonal:

   6.55 in

   Aspect ratio (height:width):

   20:9

   Approximate rectangular screen area:

   103.6 cm²

2. 2. Redmi Note 9S

   Screen diagonal:

   6.67 in

   Aspect ratio (height:width):

   20:9

   Approximate rectangular screen area:

   107.4 cm²

Redmi Note 9S has approximately 3.7% more rectangular screen area than Ace2.

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.