Oppo R9s vs Xiaomi Mi 4i

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

  R9s:

  OLED

  Mi 4i:

  LCD

• Weight

  Mi 4i: 15 g lighter

  R9s:

  145 g

  Mi 4i:

  130 g

• Width

  Mi 4i: 4.7 mm narrower

  R9s:

  74.3 mm

  Mi 4i:

  69.6 mm

• Screen diagonal

  Mi 4i: 0.5 in smaller diagonal

  R9s:

  5.5 in

  Mi 4i:

  5 in

• Chipset

  R9s:

  Qualcomm MSM8953 Snapdragon 625 (14 nm)

  Mi 4i:

  Qualcomm MSM8939 Snapdragon 615 (28 nm)

• Depth

  R9s: 1.2 mm thinner

  R9s:

  6.6 mm

  Mi 4i:

  7.8 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. R9s

   Height:

   153 mm +14.9 mm versus Mi 4i

   Width:

   74.3 mm +4.7 mm versus Mi 4i

   Depth:

   6.6 mm

2. 2. Mi 4i

   Height:

   138.1 mm

   Width:

   69.6 mm

   Depth:

   7.8 mm +1.2 mm versus R9s

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. R9s

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   83.4 cm²

2. 2. Mi 4i

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

R9s has approximately 21% more rectangular screen area than Mi 4i.

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.