Xiaomi Redmi Note 9S vs YU Ace

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.

• Width

  Ace: 6.2 mm narrower

  Redmi Note 9S:

  76.7 mm

  Ace:

  70.5 mm

• Screen diagonal

  Ace: 1.22 in smaller diagonal

  Redmi Note 9S:

  6.67 in

  Ace:

  5.45 in

• Chipset

  Redmi Note 9S:

  Qualcomm SM7125 Snapdragon 720G (8 nm)

  Ace:

  Mediatek MT6739WW (28 nm)

• Rear camera layout

  Redmi Note 9S:

  Quad

  Ace:

  Single

• Depth

  Redmi Note 9S: 0.8 mm thinner

  Redmi Note 9S:

  8.8 mm

  Ace:

  9.6 mm

• Height

  Ace: 17.8 mm shorter

  Redmi Note 9S:

  165.8 mm

  Ace:

  148 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. Redmi Note 9S

   Height:

   165.8 mm +17.8 mm versus Ace

   Width:

   76.7 mm +6.2 mm versus Ace

   Depth:

   8.8 mm

   Weight:

   209 g

2. 2. Ace

   Height:

   148 mm

   Width:

   70.5 mm

   Depth:

   9.6 mm +0.8 mm versus Redmi Note 9S

   Weight:

   Unknown

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. Redmi Note 9S

   Screen diagonal:

   6.67 in

   Aspect ratio (height:width):

   20:9

   Approximate rectangular screen area:

   107.4 cm²

2. 2. Ace

   Screen diagonal:

   5.45 in

   Aspect ratio (height:width):

   18:9

   Approximate rectangular screen area:

   76.7 cm²

Redmi Note 9S has approximately 40.1% more rectangular screen area than Ace.

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.