Xiaomi Black Shark 3 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

    Black Shark 3:
    OLED
    Redmi 8A Dual:
    LCD
  • Weight

    Redmi 8A Dual: 34 g lighter

    Black Shark 3:
    222 g
    Redmi 8A Dual:
    188 g
  • Width

    Redmi 8A Dual: 1.9 mm narrower

    Black Shark 3:
    77.3 mm
    Redmi 8A Dual:
    75.4 mm
  • Screen diagonal

    Redmi 8A Dual: 0.45 in smaller diagonal

    Black Shark 3:
    6.67 in
    Redmi 8A Dual:
    6.22 in
  • Chipset

    Black Shark 3:
    Qualcomm SM8250 Snapdragon 865 (7 nm+)
    Redmi 8A Dual:
    Qualcomm SDM439 Snapdragon 439 (12 nm)
  • Rear camera layout

    Black Shark 3:
    Triple
    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. Black Shark 3

    Height:
    168.7 mm +12.2 mm versus Redmi 8A Dual
    Width:
    77.3 mm +1.9 mm versus Redmi 8A Dual
    Depth:
    10.4 mm +1 mm versus Redmi 8A Dual
  2. 2. Redmi 8A Dual

    Height:
    156.5 mm
    Width:
    75.4 mm
    Depth:
    9.4 mm

Weight

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

  1. 1. Black Shark 3

    222 g

    +34 g versus Redmi 8A Dual

  2. 2. Redmi 8A Dual

    188 g

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. Black Shark 3

    Screen diagonal:
    6.67 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    107.4 cm²
  2. 2. Redmi 8A Dual

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

Black Shark 3 has approximately 11.2% more rectangular screen area than Redmi 8A Dual.

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 Black Shark 3, Redmi 8A Dual, compared at the same storage capacity.
StorageBlack Shark 3Redmi 8A Dual
32 GB Not recorded 2 / 3 GB RAM Alternative RAM configurations
128 GB 8 / 12 GB RAM Alternative RAM configurations Not recorded
256 GB 12 GB RAM Not recorded

Practical features

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

1. Black Shark 3

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

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. Black Shark 3

    4720 mAh

  2. 2. Redmi 8A Dual

    5000 mAh

    +280 mAh versus Black Shark 3

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. Black Shark 32. Redmi 8A Dual

Everyday essentials
Everyday essentials — specifications for Black Shark 3, Redmi 8A Dual.
SpecificationBlack Shark 3Redmi 8A Dual
Dimensions (HxWxD)
  • 168.7 Х 77.3 Х 10.4 mm
  • 156.5 Х 75.4 Х 9.4 mm
Weight
  • 222 g
  • 188 g
Technology
  • AMOLED
  • IPS LCD
Screen size
  • 6.67" inch
  • 6.22" inch
Screen resolution
  • 1080 x 2400 px
  • 720 x 1520 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128GB 8GB RAM
  • 128GB 12GB RAM
  • 256GB 12GB RAM
  • 32GB 2GB RAM
  • 32GB 3GB RAM
Memory card support
  • No
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4720 mAh
  • Non-removable Li-Po
  • 5000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 10.0
  • Android 9.0 (Pie); MIUI 11
Chipset
  • Qualcomm SM8250 Snapdragon 865 (7 nm+)
  • Qualcomm SDM439 Snapdragon 439 (12 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Black Shark 3, Redmi 8A Dual.
SpecificationBlack Shark 3Redmi 8A Dual
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 107.4 cm2
  • 96.6 cm2
Screen format
  • 20:9 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 82.4%
  • 81.8%
PPI /points per inch/
  • 395 PPI
  • 270 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for Black Shark 3, Redmi 8A Dual.
SpecificationBlack Shark 3Redmi 8A Dual
Rear camera, main
  • 64 MP
  • Triple
  • 13 MP
  • Dual
Camera specs
  • 64 MP
  • f/1.8
  • 26mm (wide)
  • 1/1.72''
  • 0.8µm
  • PDAF -13 MP
  • f/2.3
  • (ultrawide) -5 MP
  • f/2.2
  • (depth)
  • 13 MP
  • f/2.2
  • (wide)
  • 1/3.1''
  • 1.12µm
  • PDAF -2 MP
  • f/2.4
  • (depth)
Functions
  • HDR
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 20 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 20 MP
  • f/2.2
  • (wide)
  • 1/3''
  • 0.9μm
  • 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 Black Shark 3, Redmi 8A Dual.
SpecificationBlack Shark 3Redmi 8A Dual
Processor CPU
  • Octa-core (1x2.84 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
  • Octa-core (4x1.95 GHz Cortex-A53 & 4x1.45 GHz Cortex A53)
Graphics processor GPU
  • Adreno 650
  • Adreno 505
GeekBench 4 Single Core * Unknown
  • 864
GeekBench 4 Multi-Core * Unknown
  • 3669
Antutu 8 score *
  • 603541
  • 95326
General specs
General specs — specifications for Black Shark 3, Redmi 8A Dual.
SpecificationBlack Shark 3Redmi 8A Dual
Release date
  • 2020
  • March 3
  • 2020
  • February 11
Colors
  • Lightning Black
  • Armor Gray
  • Star Silver
  • Sky White
  • Sea Blue
  • Midnight Grey
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • $ 550
  • 80 EUR
Body build
  • Glass front
  • aluminum back
  • aluminum frame
  • Glass front (Gorilla Glass 5)
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for Black Shark 3, Redmi 8A Dual.
SpecificationBlack Shark 3Redmi 8A Dual
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 -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 17(700)
  • 20(800)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) -5G - 5G band 41(2500)
  • 78(3500)
  • 79(4700); SA/NSA
  • 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; 5G
  • HSPA
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac/ax
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • QZSS
  • BDS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 5.0
  • A2DP
  • LE
  • aptX HD
  • aptX Adaptive
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Black Shark 3, Redmi 8A Dual.
SpecificationBlack Shark 3Redmi 8A Dual
Radio
  • No
  • FM radio
  • built-in antenna
Others
  • Always-on display -90Hz refresh rate -500 nits typ. brightness -HDR10+
  • 400 nits typ. brightness
Other features
Other features — specifications for Black Shark 3, Redmi 8A Dual.
SpecificationBlack Shark 3Redmi 8A Dual
Dop
  • Sensors Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 65W: 100% in 38 min -Fast battery charging 30W (128/8 model) -Magnetic charging 18W
  • Sensors Accelerometer
  • proximity
  • compass - Fast battery charging 18W -Power bank/Reverse charging - Splash resistant