Oppo Realme X 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.

  • Display technology

    OLED versus LCD

    Realme X:
    OLED
    Redmi Note 9S:
    LCD
  • Weight

    Realme X: 18 g lighter

    Realme X:
    191 g
    Redmi Note 9S:
    209 g
  • Chipset

    Realme X:
    Qualcomm SDM710 Snapdragon 710 (10 nm)
    Redmi Note 9S:
    Qualcomm SM7125 Snapdragon 720G (8 nm)
  • Rear camera layout

    Realme X:
    Dual
    Redmi Note 9S:
    Quad
  • Depth

    Redmi Note 9S: 0.6 mm thinner

    Realme X:
    9.4 mm
    Redmi Note 9S:
    8.8 mm
  • Height

    Realme X: 4.6 mm shorter

    Realme X:
    161.2 mm
    Redmi Note 9S:
    165.8 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. Realme X

    Height:
    161.2 mm
    Width:
    76 mm
    Depth:
    9.4 mm +0.6 mm versus Redmi Note 9S
  2. 2. Redmi Note 9S

    Height:
    165.8 mm +4.6 mm versus Realme X
    Width:
    76.7 mm
    Depth:
    8.8 mm

Weight

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

  1. 1. Realme X

    191 g

  2. 2. Redmi Note 9S

    209 g

    +18 g versus Realme X

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. Realme X

    Screen diagonal:
    6.53 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    104.7 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 2.6% more rectangular screen area than Realme X.

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 Realme X, Redmi Note 9S, compared at the same storage capacity.
StorageRealme XRedmi Note 9S
64 GB Unknown 4 GB RAM
128 GB Unknown 6 GB RAM
Realme X: Original memory entry

128/256 GB · 8 GB RAM 64 GB · 4/6 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. Realme X

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
No

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. Realme X

    3765 mAh

  2. 2. Redmi Note 9S

    5020 mAh

    +1255 mAh versus Realme X

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. Realme X2. Redmi Note 9S

Everyday essentials
Everyday essentials — specifications for Realme X, Redmi Note 9S.
SpecificationRealme XRedmi Note 9S
Dimensions (HxWxD)
  • 161.2 Х 76 Х 9.4 mm
  • 165.8 Х 76.7 Х 8.8 mm
Weight
  • 191 g
  • 209 g
Technology
  • AMOLED
  • IPS LCD
Screen size
  • 6.53" inch
  • 6.67" inch
Screen resolution
  • 1080 x 2340 px
  • 1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128/256 GB
  • 8 GB RAM 64 GB
  • 4/6 GB RAM
  • 64GB 4GB RAM
  • 128GB 6GB RAM
Memory card support
  • No
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3765 mAh
  • Non-removable Li-Po
  • 5020 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 9.0 (Pie); ColorOS 6
  • Android 10.0; MIUI 11
Chipset
  • Qualcomm SDM710 Snapdragon 710 (10 nm)
  • Qualcomm SM7125 Snapdragon 720G (8 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Realme X, Redmi Note 9S.
SpecificationRealme XRedmi Note 9S
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 105.2 cm2
  • 107.4 cm2
Screen format
  • 19.5:9 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 85.9%
  • 84.5%
PPI /points per inch/
  • 394 PPI
  • 395 PPI
Screen protection
  • Corning Gorilla Glass 5
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for Realme X, Redmi Note 9S.
SpecificationRealme XRedmi Note 9S
Rear camera, main
  • 48 MP
  • Dual
  • 48 MP
  • Quad
Camera specs
  • 48 MP
  • f/1.7
  • (wide)
  • 26mm (wide)
  • 1/2''
  • 0.8µm
  • PDAF -5 MP
  • f/2.4
  • depth sensor
  • 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
  • 16 MP
  • Single
  • 16 MP
  • Single
Specifications
  • Motorized pop-up 16 MP
  • f/2.0
  • 25mm (wide)
  • 1/3''
  • 1.0µm
  • 16 MP
  • f/2.5
  • (wide)
  • 1.0µm
Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for Realme X, Redmi Note 9S.
SpecificationRealme XRedmi Note 9S
Processor CPU
  • Octa-core (2x2.2 GHz Kryo 360 Gold & 6x1.7 GHz Kryo 360 Silver)
  • Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
Graphics processor GPU
  • Adreno 616
  • Adreno 618
GeekBench 5 Single Core *
  • 334
Unknown
GeekBench 5 Multi-Core *
  • 1444
Unknown
General specs
General specs — specifications for Realme X, Redmi Note 9S.
SpecificationRealme XRedmi Note 9S
Release date
  • 2019
  • May
  • 2020
  • March 23
Colors
  • Steam white
  • Punk Blue
  • Aurora Blue
  • Glacier white
  • Interstellar Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 160 EUR
  • $ 199
Body build
  • Front glass (Gorilla Glass 5)
  • plastic body
  • Glass front (Gorilla Glass 5)
  • glass back (Gorilla Glass 5)
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for Realme X, Redmi Note 9S.
SpecificationRealme XRedmi 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 CDMA 800 & TD-SCDMA - China -3G - HSDPA 850 / 900 / 1700(AWS) / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 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 42.2/11.5 Mbps
  • LTE-A (2CA) Cat6 300/75 Mbps
  • 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
  • WiFi 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
  • Type-C 1.0 reversible connector
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 5.0
  • A2DP
  • LE
  • aptX HD
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Realme X, Redmi Note 9S.
SpecificationRealme XRedmi Note 9S
Radio
  • FM radio
  • FM radio
  • recording
Others
  • Active noise cancellation with dedicated mic -Dolby Atmos sound
  • 450 nits typ. brightness (advertised)
Other features
Other features — specifications for Realme X, Redmi Note 9S.
SpecificationRealme XRedmi Note 9S
Dop
  • Sensors Fingerprint (under display)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 20W: 55% in 30 min (VOOC 3.0) - Versions: RMX1901
  • Sensors Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast charging 18W - Splash-proof