Oppo A12 vs Xiaomi Redmi Note 9S

Compare recorded specifications, size and practical differences.

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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

    A12: 44 g lighter

    A12:
    165 g
    Redmi Note 9S:
    209 g
  • Width

    A12: 1.2 mm narrower

    A12:
    75.5 mm
    Redmi Note 9S:
    76.7 mm
  • Screen diagonal

    A12: 0.45 in smaller diagonal

    A12:
    6.22 in
    Redmi Note 9S:
    6.67 in
  • Chipset

    A12:
    Mediatek MT6765 Helio P35 (12nm)
    Redmi Note 9S:
    Qualcomm SM7125 Snapdragon 720G (8 nm)
  • Rear camera layout

    A12:
    Dual
    Redmi Note 9S:
    Quad
  • Depth

    A12: 0.5 mm thinner

    A12:
    8.3 mm
    Redmi Note 9S:
    8.8 mm

Physical size

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. A12

    Height:
    155.9 mm
    Width:
    75.5 mm
    Depth:
    8.3 mm
  2. 2. Redmi Note 9S

    Height:
    165.8 mm +9.9 mm versus A12
    Width:
    76.7 mm +1.2 mm versus A12
    Depth:
    8.8 mm +0.5 mm versus A12

Weight

Bars start at zero and share a scale within this chart.

  1. 1. A12

    165 g

  2. 2. Redmi Note 9S

    209 g

    +44 g versus A12

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. A12

    Screen diagonal:
    6.22 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    96.6 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 11.2% more rectangular screen area than A12.

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.

Recorded RAM for A12, Redmi Note 9S, compared at the same storage capacity.
StorageA12Redmi Note 9S
32 GB 3 GB RAM Not recorded
64 GB Recorded for all phones 4 GB RAM 4 GB RAM
128 GB Not recorded 6 GB RAM

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. A12

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC

2. Redmi Note 9S

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC (dedicated slot)

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded battery capacity

Bars start at zero and share a scale within this chart.

  1. 1. A12

    4230 mAh

  2. 2. Redmi Note 9S

    5020 mAh

    +790 mAh versus A12

Specifications

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.

1. A122. Redmi Note 9S

Everyday essentials
Everyday essentials — specifications for A12, Redmi Note 9S.
SpecificationA12Redmi Note 9S
Dimensions (HxWxD)
  • 155.9 Х 75.5 Х 8.3 mm
  • 165.8 Х 76.7 Х 8.8 mm
Weight
  • 165 g
  • 209 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 6.22" inch
  • 6.67" inch
Screen resolution
  • 720 x 1520 px
  • 1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 3GB RAM
  • 64GB 4GB RAM
  • 64GB 4GB RAM
  • 128GB 6GB RAM
Memory card support
  • microSDXC
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4230 mAh
  • Non-removable Li-Po
  • 5020 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 9.0 (Pie); ColorOS 6.1
  • Android 10.0; MIUI 11
Chipset
  • Mediatek MT6765 Helio P35 (12nm)
  • Qualcomm SM7125 Snapdragon 720G (8 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A12, Redmi Note 9S.
SpecificationA12Redmi Note 9S
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 96.6 cm2
  • 107.4 cm2
Screen format
  • 19:9 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 82.0%
  • 84.5%
PPI /points per inch/
  • 270 PPI
  • 395 PPI
Screen protection
  • Corning Gorilla Glass 3
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for A12, Redmi Note 9S.
SpecificationA12Redmi Note 9S
Rear camera, main
  • 13 MP
  • Dual
  • 48 MP
  • Quad
Camera specs
  • 13 MP
  • f/2.2
  • 1/3.1''
  • 1.12µm
  • PDAF -2 MP
  • f/2.4
  • (depth)
  • 48 MP
  • f/1.8
  • 26mm (wide)
  • 1/2.0''
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide)
  • 1/4.0''
  • 1.12µm -5 MP
  • f/2.4
  • (macro)
  • 1.12µm -2 MP
  • (depth)
Functions
  • HDR
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 16 MP
  • Single
Specifications
  • 5 MP
  • f/2.0
  • 1/5''
  • 1.12µm
  • 16 MP
  • f/2.5
  • (wide)
  • 1.0µm
Performance
Performance — specifications for A12, Redmi Note 9S.
SpecificationA12Redmi Note 9S
Processor CPU
  • Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
  • Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
Graphics processor GPU
  • PowerVR GE8320
  • Adreno 618
General specs
General specs — specifications for A12, Redmi Note 9S.
SpecificationA12Redmi Note 9S
Release date
  • 2020
  • April 20
  • 2020
  • March 23
Colors
  • Blue
  • Black
  • Aurora Blue
  • Glacier white
  • Interstellar Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • $ 199
Body build
  • Glass front
  • plastic back
  • plastic frame
  • Glass front (Gorilla Glass 5)
  • glass back (Gorilla Glass 5)
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for A12, Redmi Note 9S.
SpecificationA12Redmi Note 9S
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 38(2600)
  • 40(2300)
  • 41(2500)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 40(2300)
Speed
  • HSPA
  • LTE-A
  • HSPA 42.2/5.76 Mbps
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB
  • microUSB 2.0
  • USB On-The-Go
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for A12, Redmi Note 9S.
SpecificationA12Redmi Note 9S
Radio
  • FM radio
  • FM radio
  • recording
Others
  • 450 nits typ. brightness
  • 450 nits typ. brightness (advertised)
Other features
Other features — specifications for A12, Redmi Note 9S.
SpecificationA12Redmi Note 9S
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Sensors Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast charging 18W - Splash-proof