Oppo R9s vs Xiaomi Redmi 8A Dual

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

    R9s:
    OLED
    Redmi 8A Dual:
    LCD
  • Weight

    R9s: 43 g lighter

    R9s:
    145 g
    Redmi 8A Dual:
    188 g
  • Width

    R9s: 1.1 mm narrower

    R9s:
    74.3 mm
    Redmi 8A Dual:
    75.4 mm
  • Screen diagonal

    R9s: 0.72 in smaller diagonal

    R9s:
    5.5 in
    Redmi 8A Dual:
    6.22 in
  • Chipset

    R9s:
    Qualcomm MSM8953 Snapdragon 625 (14 nm)
    Redmi 8A Dual:
    Qualcomm SDM439 Snapdragon 439 (12 nm)
  • Rear camera layout

    R9s:
    Single
    Redmi 8A Dual:
    Dual

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. R9s

    Height:
    153 mm
    Width:
    74.3 mm
    Depth:
    6.6 mm
  2. 2. Redmi 8A Dual

    Height:
    156.5 mm +3.5 mm versus R9s
    Width:
    75.4 mm +1.1 mm versus R9s
    Depth:
    9.4 mm +2.8 mm versus R9s

Weight

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

  1. 1. R9s

    145 g

  2. 2. Redmi 8A Dual

    188 g

    +43 g 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. Redmi 8A Dual

    Screen diagonal:
    6.22 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    96.6 cm²

Redmi 8A Dual has approximately 15.8% more rectangular screen area than R9s.

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 R9s, Redmi 8A Dual, compared at the same storage capacity.
StorageR9sRedmi 8A Dual
32 GB Unknown 2 / 3 GB RAM Alternative RAM configurations
R9s: Original memory entry

64 GB · 512GB 4GB

Practical features

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

1. R9s

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 slot)

2. Redmi 8A Dual

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. R9s

    3010 mAh

  2. 2. Redmi 8A Dual

    5000 mAh

    +1990 mAh versus R9s

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. R9s2. Redmi 8A Dual

Everyday essentials
Everyday essentials — specifications for R9s, Redmi 8A Dual.
SpecificationR9sRedmi 8A Dual
Dimensions (HxWxD)
  • 153 Х 74.3 Х 6.6 mm
  • 156.5 Х 75.4 Х 9.4 mm
Weight
  • 145 g
  • 188 g
Technology
  • AMOLED
  • IPS LCD
Screen size
  • 5.5" inch
  • 6.22" inch
Screen resolution
  • 1080 x 1920 px
  • 720 x 1520 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 512GB 4GB
  • 32GB 2GB RAM
  • 32GB 3GB RAM
Memory card support
  • microSD
  • up to 256 GB (uses SIM 2 slot)
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3010 mAh
  • Non-removable Li-Po
  • 5000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 6.0.1 (Marshmallow)
  • Android 9.0 (Pie); MIUI 11
Chipset
  • Qualcomm MSM8953 Snapdragon 625 (14 nm)
  • Qualcomm SDM439 Snapdragon 439 (12 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for R9s, Redmi 8A Dual.
SpecificationR9sRedmi 8A Dual
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 96.6 cm2
Screen format
  • 16:9 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 73.4%
  • 81.8%
PPI /points per inch/
  • 401 PPI
  • 270 PPI
Screen protection
  • Corning Gorrila Glass 5
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for R9s, Redmi 8A Dual.
SpecificationR9sRedmi 8A Dual
Rear camera, main
  • 16 MP
  • Single
  • 13 MP
  • Dual
Camera specs
  • 16 MP
  • f/1.7
  • 1/2.8''
  • 1.12µm
  • dual pixel PDAF
  • 13 MP
  • f/2.2
  • (wide)
  • 1/3.1''
  • 1.12µm
  • PDAF -2 MP
  • f/2.4
  • (depth)
Functions
  • LED flash
  • HDR
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 16 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 16 MP
  • f/2.0
  • 8 MP
  • f/2.0
  • 1/4''
  • 1.12µm
Performance

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

Performance — specifications for R9s, Redmi 8A Dual.
SpecificationR9sRedmi 8A Dual
Processor CPU
  • Octa-core 2.0 GHz Cortex-A53
  • Octa-core (4x1.95 GHz Cortex-A53 & 4x1.45 GHz Cortex A53)
Graphics processor GPU
  • Adreno 506
  • Adreno 505
Antutu 7 score *
  • 62154
Unknown
GeekBench 4 Single Core *
  • 859
  • 864
GeekBench 4 Multi-Core *
  • 3416
  • 3669
GeekBench 4 RenderScript *
  • 3102
Unknown
Antutu 8 score * Unknown
  • 95326
GeekBench 5 Single Core *
  • 172
Unknown
GeekBench 5 Multi-Core *
  • 1003
Unknown
General specs
General specs — specifications for R9s, Redmi 8A Dual.
SpecificationR9sRedmi 8A Dual
Release date
  • 2016
  • October
  • 2020
  • February 11
Colors
  • Black
  • Gold
  • Rose Gold
  • Red
  • Sky White
  • Sea Blue
  • Midnight Grey
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 450 EUR
  • 80 EUR
Body build
  • Front glass
  • aluminum body
  • Glass front (Gorilla Glass 5)
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for R9s, Redmi 8A Dual.
SpecificationR9sRedmi 8A Dual
SIM card
  • Hybrid 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 -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO & TD-SCDMA -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 8(900)
  • 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 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
  • HSPA
  • 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 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 4.0
  • A2DP
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for R9s, Redmi 8A Dual.
SpecificationR9sRedmi 8A Dual
Radio
  • No
  • FM radio
  • built-in antenna
Others
  • Active noise cancellation with dedicated mic
  • 400 nits typ. brightness
Other features
Other features — specifications for R9s, Redmi 8A Dual.
SpecificationR9sRedmi 8A Dual
Dop
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging
  • Sensors Accelerometer
  • proximity
  • compass - Fast battery charging 18W -Power bank/Reverse charging - Splash resistant