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    Samsung Galaxy A31 vs Samsung Galaxy A40 vs Redmi K20 Pro

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    Last Updated: 
    27th Aug 2020

    Key Feature Comparison

    Samsung Galaxy A31
    ₹16,999
    8/10
    Samsung Galaxy A40
    7/10
    Xiaomi Redmi K20 Pro
    ₹22,999
    8/10
    Samsung Galaxy A31
    Samsung Galaxy A31
    8/10
    ₹16,999
    8/10
    VS
    Samsung Galaxy A40
    Samsung Galaxy A40
    7/10
    7/10
    VS
    Xiaomi Redmi K20 Pro
    Xiaomi Redmi K20 Pro
    8/10
    ₹22,999
    8/10
    Display
    Screen Size
    6.4 inches
    5.9 inches
    6.39 inches
    Screen Type
    Super AMOLED
    Super AMOLED
    AMOLED
    Screen Resolution
    1080 x 2400 pixels
    1080 x 2340 pixels
    1080 x 2340 pixels
    Pixel Density
    411 ppi
    437 ppi
    403 ppi
    Aspect Ratio
    20:09
    19.5:9
    19.5:9
    Screen to Body Ratio
    84.92%
    85.33%
    91.90%
    Screen Design
    Waterdrop notch
    Waterdrop notch
    Bezel-less
    Screen Quality
    FHD
    FHD
    FHD
    Screen Protection
    -
    Gorilla Glass 3
    Gorilla Glass 5
    Memory & Storage
    Phone Variants
    6GB 128GB
    4GB 64GB
    8GB 256GB, 6GB 128GB
    Expandable Storage
    Yes
    Yes
    No
    RAM Type
    LPDDR4X
    LPDDR4X
    LPDDR4X
    Expandable Storage Capacity
    Yes, 512 GB
    Yes, 512 GB
    -
    OTG Support
    Yes
    -
    Yes
    Storage Type
    -
    eMMC 5.1
    UFS 2.1
    Miscellaneous Features
    Sensors
    Light sensor, Proximity sensor, Accelerometer, Gyroscope
    Light sensor, Proximity sensor, Accelerometer, Gyroscope
    Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
    Performance
    Operating System
    Android v10 (Q)
    Android v9.0 (Pie)
    Android v9.0 (Pie)
    GPU
    Mali-G52
    Mali-G71 MP2
    Adreno 640
    Chipset
    MediaTek Helio P65
    Samsung Exynos 7 Octa 7904
    Qualcomm Snapdragon 855
    CPU
    Octa core (2 GHz, Dual core, Cortex A75 + 1.7 GHz, Hexa Core, Cortex A55)
    Octa core (1.8 GHz, Dual core, Cortex A73 + 1.6 GHz, Hexa Core, Cortex A53)
    Octa core (2.84 GHz, Single core, Kryo 485 + 2.42 GHz, Tri core, Kryo 485 + 1.8 GHz, Quad core, Kryo 485)
    Custom User Interface
    Samsung One UI
    -
    MIUI
    Clock Speed
    2 GHz
    1.8 GHz
    2.84 GHz
    Architecture
    64 bit
    64 bit
    64 bit
    Process Technology
    12 nm
    14 nm
    7 nm
    Battery
    Battery Capacity
    5000 mAh
    3100 mAh
    4000 mAh
    Battery Removable
    No
    No
    No
    Battery Type
    Li-ion
    Li-ion
    Li-Polymer
    Charger Type
    Fast, 15W
    -
    Quick, v4.0
    USB Type-C
    Yes
    Yes
    Yes
    Fast Charging
    Yes
    -
    Yes
    General
    Announced On
    24-Mar-20
    5-Mar-19
    28-May-19
    Market Status
    Available
    Not Released in India
    Available
    Brand
    Samsung
    Samsung
    Xiaomi
    Price Status
    Confirmed
    Expected
    Confirmed
    Price
    Rs. 17,999
    Rs. 19,500
    Rs. 24,999
    Network & Connectivity
    GPS
    Yes A-GPS, Glonass
    Yes A-GPS, Glonass
    Yes A-GPS, Glonass
    Audio Features
    Dolby Atmos
    Active noise cancellation with dedicated mic
    24-bit/192kHz audioActive noise cancellation with dedicated mic
    NFC
    Yes
    Yes
    No
    Bluetooth
    Yes
    Yes
    Yes
    FM Radio
    Yes
    -
    Yes
    3.5mm Audio Jack
    Yes
    Yes
    Yes
    Bluetooth Type
    v5.0
    v5.0
    v5.0
    Audio Jack
    3.5 mm
    3.5 mm
    3.5 mm
    Front Camera
    Front Video Recording
    1920x1080 @ 30 fps
    1080p30fps
    1920x1080 @ 30 fps, 1280x720 @ 30 fps
    Front Camera Setup
    Single, 20MP
    Single, 25MP
    Single, 20MP
    Front Camera 1 Resolution
    20 MP
    25 MP
    20 MP
    Front Camera 1 Type
    f/2.2 Primary Camera
    f/2.0 Primary Camera
    f/2.2 Primary Camera
    Front Aperture
    f/2.2
    f/2.0
    f/2.2
    Front Flash
    No
    No
    -
    Design
    Weight
    185 grams
    140 grams
    191 grams
    Colors
    Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White
    Black, Blue, Orange, White
    Flame Red, Glacier Blue, Carbon Fiber Black, Pearl White
    Dimensions
    159.3 x 73.1 x 8.6 mm
    144.4 x 69.2 x 7.9 mm
    156.7 x 74.3 x 8.8 mm
    SAR Value
    Head: 1.13 W/kg
    -
    Head: 1.03 W/kg, Body: 0.72 W/kg
    Build
    -
    Back: Plastic
    Back: Gorilla Glass
    Rear Camera
    OIS
    No
    No
    No
    Rear Flash
    Yes, LED Flash
    Yes, LED Flash
    Yes, Dual LED Flash
    Rear Video Recording
    1920x1080 @ 30 fps
    1920x1080 @ 30 fps
    3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps
    Rear Camera Features
    8 x Digital Zoom, Auto Flash, Face detection, Touch to focus
    Digital Zoom, Auto Flash, Face detection, Touch to focus
    Auto Flash, Face detection, Touch to focus
    Rear Camera Setup
    Quad, 48MP + 8MP + 5MP + 5MP
    Dual, 16MP + 5MP
    Triple, 48MP + 13MP + 8MP
    Rear Camera 1 Resolution
    48 MP
    16 MP
    48 MP
    Rear Camera 1 Type
    f/2.0 (upto 8x Digital Zoom) Primary Camera
    f/1.7 Primary Camera
    f/1.75, Wide Angle Primary Camera
    Rear Camera 1 Lens
    26 mm focal length, 2" sensor size, 0.8 micrometre pixel size
    -
    2" sensor size, 0.8 micrometre pixel size
    Rear Camera 2 Resolution
    8 MP
    5 MP
    13 MP
    Rear Camera 2 Type
    f/2.2, Wide Angle, Ultra-Wide Angle Camera
    f/2.2, Wide Angle, Ultra-Wide Angle Camera
    f/2.4, Wide Angle, Ultra-Wide Angle Camera
    Rear Camera 3 Resolution
    5 MP
    -
    8 MP
    Rear Camera 3 Type
    f/2.4, Macro Camera
    -
    f/2.4 Telephoto (upto 10x Digital Zoom, upto 2x Optical Zoom) Camera
    Rear Camera 4 Resolution
    5 MP
    -
    -
    Rear Camera 4 Type
    f/2.4, Depth Camera
    -
    -
    Rear Aperture
    f/2.0
    f/1.7
    f/1.75
    Network
    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, ac/b/g/n/n 5GHz
    Yes, Wi-Fi 802.11, a/ac/b/g/n/n 5GHz
    Yes, Wi-Fi 802.11, a/ac/b/g/n
    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 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 800(band 20), 3G Bands: UMTS 19...
    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) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS:...
    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 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 800(band 20), 3G Bands: UMTS 19...
    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) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS:...
    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...
    Sensors
    Fingerprint Scanner
    Yes
    Yes
    Yes
    Fingerprint Scanner Position
    On-Screen
    Rear
    On-Screen
    Fingerprint Scanner Type
    Optical
    -
    Optical

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