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Samsung Galaxy A51 vs Samsung Galaxy M31 vs Xiaomi Redmi Note 9 Pro

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Last Updated:  Thu, 14 Jan'21
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Samsung Galaxy A51
Samsung Galaxy A51
×
Samsung Galaxy M31
Samsung Galaxy M31
×
Xiaomi Redmi Note 9 Pro
Xiaomi Redmi Note 9 Pro
×
Samsung Galaxy A51
Samsung Galaxy A51
×
Samsung Galaxy M31
Samsung Galaxy M31
×
Xiaomi Redmi Note 9 Pro
Xiaomi Redmi Note 9 Pro

General

  • Bluetooth
    5.0, A2DP, LE
    5.0, A2DP, LE
    5.0, A2DP, LE

Design

  • Height
    6.24 inches
    6.29 inches
    6.53 inches
  • Width
    2.90 inches
    2.96 inches
    3.02 inches
  • Thickness
    0.31 inches
    0.35 inches
    0.35 inches
  • Weight
    172 g
    191 g
    209 g
  • Color
    Prism Crush Black, Prism Crush White, Prism Crush Blue
    Ocean Blue, Space Black
    Aurora Blue, Glacier White, Interstellar Black
  • Build
    Glass front (Gorilla Glass 3), plastic back, plastic frame
    Glass front (Gorilla Glass 3), plastic back, plastic frame
    Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame

Display

  • Screen Size
    6.5 inches
    6.4 inches
    6.67 inches
  • Display Type
    Super AMOLED capacitive touchscreen
    Super AMOLED capacitive touchscreen
    IPS LCD capacitive touchscreen
  • Display Resolution
    1080 x 2400 pixels
    1080 x 2340 pixels
    1080 x 2400 pixels
  • Pixel Density
    405 ppi
    411 ppi
    395 ppi
  • Aspect Ratio
    20:9
    19.5:9
    20:09
  • Protection
    Corning Gorilla Glass 3
    Corning Gorilla Glass 3
    Corning Gorilla Glass 5
  • Screen to Body Ratio
    87.4%
    84.1%
    84.50%

Performance

  • OS
    Android 10, One UI 2.1
    Android 10, One UI 2.5
    Android 10.0 MIUI 11
  • GPU
    Mali-G72 MP3
    Mali-G72 MP3
    Adreno 618
  • Chipset GP
    Exynos 9611 (10nm)
    Exynos 9611 (10nm)
    Qualcomm SM7125 Snapdragon 720G (8 nm)
  • CPU
    Octa-core (4x2.3 GHz Cortex-A73 4x1.7 GHz Cortex-A53)
    Octa-core (4x2.3 GHz Cortex-A73 4x1.7 GHz Cortex-A53)
    Octa-core (2x2.3 GHz Kryo 465 Gold and 6x1.8 GHz Kryo 465 Silver)

Memory & Storage

  • RAM/Internal Storage
    128GB 6GB RAM, 128GB 8GB RAM
    64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
    64GB 4GB RAM, 128GB 6GB RAM, 128GB 4GB RAM
  • Expandable Memory
    microSDXC (dedicated slot)
    microSDXC (dedicated slot)
    microSDXC (dedicated slot)

Back Camera

  • Quad Camera
    48 MP, f/2.0, 26mm (wide), 1/2.0, 0.8 micron|12 MP, f/2.2, 12mm (ultrawide)|5 MP, f/2.4, 25mm (macro), 1/5.0, 1.12 micron|5 MP, f/2.2, (depth)
    48 MP, f/1.8, (wide), 1/2.25", 0.8micron, PDAF | 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12micron | 5 MP, f/2.4, (macro), 1.12micron | 2 MP, f/2.4, (depth)
  • Autofocus
    PDAF
    PDAF
    PDAF
  • Back Camera Video
    4K30fps, 1080p30/120fps; gyro-EIS
    2160p30fps, 1080p30fps, gyro-EIS
    4K30fps, 1080p30/60/120fps, 720p960fps, gyro-EIS
  • Back Camera Features
    LED flash, panorama, HDR
    LED flash, panorama, HDR
    LED flash, HDR, panorama
  • Triple Camera
    64 MP, f/1.8, 26mm (wide), 1/1.72, 0.8 micron|8 MP, f/2.2, 12mm (ultrawide), 1/4.0, 1.12 micron|5 MP, f/2.2, 25mm (macro), 1/5.0, 1.12 micron|5 MP, f/2.2, (depth)

Front Camera

  • Single Camera
    32 MP, f/2.2, 26mm (wide), 1/2.8, 0.8 micron
    32 MP, f/2.0, 26mm (wide), 1/2.8, 0.8 micron
    16 MP, f/2.5, (wide), 1.0micron
  • Front Camera Video
    1080p30fps
    1080p30fps
    1080p30fps
  • Front Camera Features
    HDR
    HDR
    HDR, panorama

Sound

  • HeadPhone Jack
    Yes
    Yes
    Yes
  • Loudspeaker
    Yes
    Yes
    Yes
  • Audio Features
    Dolby Atmos
    Dolby Atmos

Battery

  • Battery Capacity
    4000 mAh battery
    6000 mAh battery
    5020 mAh battery
  • User Replaceable
    Non-removable
    Non-removable
    Non-removable
  • Talk Time
    Up to 32 (Hours 4G LTE)
  • Music Time
    Up to 87 (Hours)
  • Charging
    Fast charging 15W
    Fast battery charging 15W
    Fast charging 18W
  • 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, Wi-Fi 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, BDS
    Yes, with A-GPS, GLONASS, GALILEO, BDS, NavIC
  • Radio
    FM radio
    FM radio, RDS, recording
    FM radio, recording
  • USB
    2.0, Type-C 1.0 reversible connector, USB On-The-Go
    2.0, Type-C 1.0 reversible connector
    2.0, Type-C 1.0 reversible connector
  • NFC
    Yes
    No
  • SIM
    Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
    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, Accelerometer, Fingerprint Sensor, Gyro Sensor, Geomagnetic Sensor, Hall Sensor, Light Sensor, Virtual Proximity Sensing
    Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
    Fingerprint (side-mounted), accelerometer, gyro, proximity, compass

Launch

  • Announced On
    2019, December
    2020, February 25
    2020, March 12
  • Status
    Available. Released 2020, January 29
    Available. Released 2020, March 04
    Available. Released 2020, March 17

Best Price

  • Flipkartbest price
    23999Buy
    17400Buy
    16969Buy
  • Amazonbest price
    23999Buy
    15999Buy
    13999Buy
  • Tata CLiQbest price
    -NA-
    18099Buy
    17499Buy

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