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    Xiaomi Redmi 8A Dual vs Xiaomi Redmi Note 9 Pro Max vs Redmi K20

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    Last Updated: 
    28th Aug 2020

    Key Feature Comparison

    Octa core (1.95 GHz, Quad core, Cortex A53 + 1.45 GHz, Quad core, Cortex A53)
    Adreno 505
    Octa core (2.3 GHz, Dual core, Kryo 465 + 1.8 GHz, Hexa Core, Kryo 465)
    Adreno 618
    Octa core (2.2 GHz, Dual core, Kryo 470 + 1.8 GHz, Hexa Core, Kryo 470)
    Adreno 618
    5000 mAh
    Li-Polymer, Fast, 18W
    5020 mAh
    Li-Polymer, Fast, 33W
    4000 mAh
    Li-Polymer, Quick, v3.0, 18W
    270 ppi
    395 ppi
    403 ppi
    13 MP
    Dual, 13MP + 2MP
    64 MP
    Quad, 64MP + 8MP + 5MP + 2MP
    48 MP
    Triple, 48MP + 13MP + 8MP
    4G
    Dual SIM, GSM+GSM
    4G
    Dual SIM, GSM+GSM
    4G
    Dual SIM, GSM+GSM, Dual VoLTE
    NameName

    Detailed Specs

    Display

    Screen Size
    6.22 inches
    6.67 inches
    6.39 inches
    Screen Type
    IPS LCD
    IPS LCD
    AMOLED
    Screen Resolution
    720 x 1520 pixels
    1080 x 2400 pixels
    1080 x 2340 pixels
    Pixel Density
    270 ppi
    395 ppi
    403 ppi
    Screen Protection
    Gorilla Glass 5
    Gorilla Glass 5
    Gorilla Glass 5
    Screen to Body Ratio
    81.48%
    84.73%
    91.90%
    Screen Design
    Waterdrop notch
    Punch hole
    Bezel-less
    Peak Brightness
    400 nits
    450 nits
    -
    Aspect Ratio
    -
    20:09
    19.5:9
    Screen Refresh Rate
    -
    60 Hz
    -
    Screen Quality
    -
    FHD
    FHD
    Phone Variants
    3GB 64GB, 3GB 32GB, 2GB 32GB
    6GB 64GB, 8GB 128GB, 6GB 128GB
    6GB 128GB, 6GB 64GB
    Expandable Storage
    Yes
    Yes
    No
    RAM Type
    LPDDR3
    LPDDR4X
    LPDDR4X
    Storage Type
    eMMC 5.1
    UFS 2.1
    UFS 2.1
    Expandable Storage Capacity
    Yes, 512 GB
    Yes, 512 GB
    -
    OTG Support
    -
    Yes
    Yes
    Sensors
    Light sensor, Proximity sensor, Accelerometer, Compass
    Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
    Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
    Operating System
    Android v9.0 (Pie)
    Android v10 (Q)
    Android v9.0 (Pie)
    GPU
    Adreno 505
    Adreno 618
    Adreno 618
    Chipset
    Qualcomm Snapdragon 439
    Qualcomm Snapdragon 720G
    Qualcomm Snapdragon 730
    CPU
    Octa core (1.95 GHz, Quad core, Cortex A53 + 1.45 GHz, Quad core, Cortex A53)
    Octa core (2.3 GHz, Dual core, Kryo 465 + 1.8 GHz, Hexa Core, Kryo 465)
    Octa core (2.2 GHz, Dual core, Kryo 470 + 1.8 GHz, Hexa Core, Kryo 470)
    Custom User Interface
    MIUI
    MIUI
    MIUI
    Clock Speed
    1.95 GHz
    2.3 GHz
    2.2 GHz
    Architecture
    64 bit
    64 bit
    64 bit
    Process Technology
    12 nm
    8 nm
    8 nm
    Battery Capacity
    5000 mAh
    5020 mAh
    4000 mAh
    Battery Removable
    No
    No
    No
    Battery Type
    Li-Polymer
    Li-Polymer
    Li-Polymer
    Charger Type
    Fast, 18W
    Fast, 33W
    Quick, v3.0, 18W
    USB Type-C
    Yes
    Yes
    Yes
    Fast Charging
    Yes
    Yes
    Yes
    Charging Time
    -
    50 % in 30 minutes
    -
    Announced On
    11-Feb-20
    12-Mar-20
    5-May-19
    Market Status
    Available
    Available
    Available
    Brand
    Xiaomi
    Xiaomi
    Xiaomi
    Price Status
    Confirmed
    Confirmed
    Confirmed
    Price
    Rs. 6,999
    Rs. 14,569
    Rs. 19,450
    Water Resistance
    Yes, Splash proof
    Yes, Splash proof
    -
    Weight
    188 grams
    209 grams
    191 grams
    Colors
    Midnight Grey, Sea Blue, Sky White
    Aurora Blue , Glacier White, Interstellar Black , Champagne Gold
    Carbon Black, Flame Red, Glacier Blue, Pearl White
    Build
    Back: Plastic
    Back: Gorilla Glass
    Back: Gorilla Glass
    Dimensions
    156.4 x 75.4 x 9.4 mm
    165.5 x 76.6 x 8.8 mm
    156.7 x 74.3 x 8.8 mm
    SAR Value
    -
    Head: 0.880 W/kg, Body: 0.475 W/kg
    Head: 1.07 W/kg, Body: 0.723 W/kg
    GPS
    Yes A-GPS, Glonass
    Yes A-GPS, Glonass
    Yes A-GPS, Glonass
    NFC
    No
    No
    Yes
    Bluetooth
    Yes
    Yes
    Yes
    FM Radio
    Yes, Wireless FM
    -
    -
    3.5mm Audio Jack
    Yes
    Yes
    Yes
    Bluetooth Type
    v4.2
    v5.0
    v5.0
    Audio Jack
    3.5 mm
    3.5 mm
    3.5 mm
    Front Video Recording
    1920x1080 @ 30 fps
    1920x1080 @ 30 fps, 1280x720 @ 30 fps
    1920x1080 @ 30 fps, 1280x720 @ 30 fps
    Front Camera Features
    HDR
    HDR, panorama
    HDR
    Front Camera Setup
    Single, 8MP
    Single, 32MP
    Single, 20MP
    Front Camera 1 Resolution
    8 MP
    32 MP
    20 MP
    Front Camera 1 Type
    f/2.0 Primary Camera
    Primary Camera
    f/2.2 Primary Camera
    Front Camera 1 Lens
    1.12 micrometre pixel size
    1.6 micrometre pixel size
    0.8 micrometre pixel size
    Front Sensor
    CMOS
    -
    -
    Front Aperture
    f/2.0
    -
    f/2.2
    Network Support
    4G
    4G
    4G
    SIM Size
    SIM1: Nano, SIM2: Nano
    SIM1: Nano, SIM2: Nano
    SIM1: Nano, SIM2: Nano
    Wi-Fi
    Yes, Wi-Fi 802.11, b/g/n
    Yes, Wi-Fi 802.11, a/ac/b/g/n, MIMO
    Yes, Wi-Fi 802.11, ac/b/g/n, MIMO
    SIM Slot(s)
    Dual SIM, GSM+GSM
    Dual SIM, GSM+GSM
    Dual SIM, GSM+GSM, Dual VoLTE
    eSIM
    No
    No
    No
    Wi-Fi Features
    Wi-Fi Direct, Mobile Hotspot
    Wi-Fi Direct, Mobile Hotspot
    Wi-Fi Direct, Mobile Hotspot
    VoLTE
    Yes
    Yes
    Yes
    SIM 1 Bands
    4G Bands: TD-LTE 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...
    4G Bands: TD-LTE 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...
    4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDG...
    SIM 2 Bands
    4G Bands: TD-LTE 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...
    4G Bands: TD-LTE 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...
    4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDG...
    Rear Flash
    Yes, LED Flash
    Yes, LED Flash
    Yes, Dual LED Flash
    Rear Video Recording
    1920x1080 @ 30 fps, 1280x720 @ 30 fps
    3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 960 fps
    3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps
    Rear Camera Features
    Digital Zoom, Auto Flash, Face detection, Touch to focus
    10 x Digital Zoom, Auto Flash, Face detection, Touch to focus
    Auto Flash, Face detection, Touch to focus
    Rear Camera Setup
    Dual, 13MP + 2MP
    Quad, 64MP + 8MP + 5MP + 2MP
    Triple, 48MP + 13MP + 8MP
    Rear Camera 1 Resolution
    13 MP
    64 MP
    48 MP
    Rear Camera 1 Type
    f/2.2 Primary Camera
    f/1.89 (upto 10x Digital Zoom) Primary Camera
    f/1.75 Primary Camera
    Rear Camera 1 Lens
    3.1" sensor size, 1.12 micrometre pixel size
    1.7" sensor size, 1.6 micrometre pixel size
    2" sensor size, 0.8 micrometre pixel size
    Rear Camera 2 Resolution
    2 MP
    8 MP
    13 MP
    Rear Camera 2 Type
    f/2.4, Depth Camera
    f/2.2, Wide Angle, Ultra-Wide Angle Camera
    f/2.4, Wide Angle, Ultra-Wide Angle Camera
    Rear Camera 2 Lens
    1.75 micrometre pixel size
    1.12 micrometre pixel size
    3" sensor size, 1.12 micrometre pixel size
    Rear Sensor
    CMOS image sensor
    CMOS image sensor, ISOCELL Plus
    Exmor-RS CMOS Sensor
    Rear Aperture
    f/2.2
    f/1.89
    f/1.75
    Rear Camera 3 Resolution
    -
    5 MP
    8 MP
    Rear Camera 3 Type
    -
    Macro Camera
    f/2.4 Telephoto (upto 10x Digital Zoom, upto 2x Optical Zoom) Camera
    Rear Camera 3 Lens
    -
    1.12 micrometre pixel size
    4.0" sensor size, 1.12 micrometre pixel size
    Rear Camera 4 Resolution
    -
    2 MP
    -
    Rear Camera 4 Type
    -
    Depth Camera
    -
    Rear Camera 4 Lens
    -
    1.75 micrometre pixel size
    -
    Fingerprint Scanner
    No
    Yes
    Yes
    Fingerprint Scanner Position
    -
    Side
    On-Screen
    NameName

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