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Samsung Galaxy A31 vs Samsung Galaxy A40 vs Redmi K20 Pro

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Last Updated:  Thu, 27 Aug'20
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Samsung Galaxy A31
Samsung Galaxy A31
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Samsung Galaxy A40
Samsung Galaxy A40
×
Xiaomi Redmi K20 Pro
Xiaomi Redmi K20 Pro
×
Samsung Galaxy A31
Samsung Galaxy A31
×
Samsung Galaxy A40
Samsung Galaxy A40
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Xiaomi Redmi K20 Pro
Xiaomi Redmi K20 Pro

Basic Information

  • User Rating
    8.2
  • Spec Score
    7.6
    7.7
    7.8

General

  • Bluetooth
    5.0, A2DP, LE
    5.0, A2DP, LE
    5.0, A2DP, LE, aptX HD

Design

  • Height
    6.27 inches
    5.69 inches
    6.17 inches
  • Width
    2.88 inches
    2.72 inches
    2.93 inches
  • Thickness
    0.34 inches
    0.31 inches
    0.35 inches
  • Weight
    185 g
    140 g
    191 g
  • Color
    Prism Crush Black, Prism Crush Blue, Prism Crush White
    Black, White, Blue, Coral
    Carbon black, Flame Red, Glacier Blue, Pearl White
  • Build
    Front glass, plastic body
    Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame

Display

  • Screen Size
    6.4 inches
    5.9 inches
    6.39 inches
  • Display Type
    Super AMOLED capacitive touchscreen
    Super AMOLED capacitive touchscreen
    Super AMOLED capacitive touchscreen
  • Display 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
    84.90%
    85.50%
    86.1%
  • Protection
    Corning Gorilla Glass 3
    Corning Gorilla Glass 5

Performance

  • OS
    Android 10, One UI 2.0
    Android 9.0 (Pie)
    Android 9.0 (Pie) MIUI 10
  • CPU
    Octa-core (2x2.0 GHz, 6x1.7 GHz)
    Octa-core (2x1.77 GHz Cortex-A73 6x1.59 GHz Cortex-A53)
    Octa-core (1x2.84 GHz Kryo 485 3x2.42 GHz Kryo 485 4x1.78 GHz Kryo 485)
  • GPU
    Mali-G71 MP2
    Adreno 640
  • Chipset GP
    Exynos 7885 (14 nm)
    Qualcomm SM8150 Snapdragon 855 (7 nm)

Memory & Storage

  • RAM/Internal Storage
    128GB 6GB RAM
    64 GB, 4 GB RAM
    128GB 6GB RAM, 256GB 8GB RAM
  • Expandable Memory
    microSDXC (dedicated slot), Up to 512GB Expandable
    microSD, up to 1 TB (dedicated slot)
    No

Back Camera

  • Quad Camera
    48 MP, f/2.0, 26mm (wide), 1/2.0, 0.8 micron|8 MP, f/2.2, 13mm (ultrawide), 1/4.0, 1.12 micron|5 MP, f/2.4, (macro)|5 MP, f/2.4, (depth)
  • Autofocus
    PDAF
    PDAF
    PDAF, Laser AF, PDAF, Laser AF
  • Back Camera Video
    1080p30fps
    1080p30fps
    4K30/60fps, 1080p30/120/240fps, 1080p960fps
  • Back Camera Features
    LED flash, panorama, HDR
    LED flash, panorama, HDR
    Dual-LED flash, HDR, panorama
  • Dual Camera
    16 MP, f/1.7, 26mm (wide)|5 MP, f/2.2, 13mm (ultrawide)

Front Camera

  • Single Camera
    20 MP, f/2.2, (wide)
    25 MP, f/2.0, 25mm (wide)
    Motorized pop-up 20 MP, f/2.2, 0.8 micron
  • Front Camera Video
    1080p30fps
    1080p30fps
    1080p30fps

Sound

  • HeadPhone Jack
    Yes
    Yes
    Yes
  • Loudspeaker
    Yes
    Yes
    Yes
  • Audio Features
    Dolby Atmos
    Active noise cancellation with dedicated mic
    24-bit/192kHz audio|Active noise cancellation with dedicated mic

Battery

  • Battery Capacity
    5000 mAh battery
    3100 mAh
    4000 mAh battery
  • User Replaceable
    Non-removable
    Non-removable
    Non-removable
  • Charging
    Fast charging 15W
    Fast battery charging 15W
    Fast charging 27W|Quick Charge 4+
  • Battery Type
    Li-Po
    Li-Po
    Li-Po

Communications

  • WLAN
    Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
    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, GALILEO, BDS
    Yes, with A-GPS, GLONASS, GALILEO, BDS
    Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO
  • Radio
    FM radio, RDS, recording
    FM radio
    Yes
  • USB
    2.0, Type-C 1.0 reversible connector, USB On-The-Go
    3.1, Type-C 1.0 reversible connector
    2.0, Type-C 1.0 reversible connector, USB On-The-Go
  • NFC
    Yes
    Yes
    Yes
  • SIM
    Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
    Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
    Dual SIM (Nano-SIM, dual stand-by)
  • Network Support
    GSM / HSPA / LTE
    GSM / HSPA / LTE
    GSM / HSPA / LTE

Miscellaneous Features

  • Sensors
    Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
    Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
    Fingerprint (under display, optical), accelerometer, gyro, proximity, compass

Launch

  • Announced On
    2020, March 24
    2019, March
    2019, May 28
  • Status
    Available. Released 2020, June 04
    Available. Released 2019, April
    Available. Released 2019, June 01

Best Price

  • Flipkartbest price
    19999Buy
    -NA-
    22999Buy
  • Amazonbest price
    -NA-
    -NA-
    22999Buy

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