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

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Last Updated:  Fri, 10 Jul'20
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Samsung Galaxy A51
Samsung Galaxy A51
×
Xiaomi Redmi Note 9 Pro Max
Xiaomi Redmi Note 9 Pro Max
×
Samsung Galaxy M31
Samsung Galaxy M31
×
Samsung Galaxy A51
Samsung Galaxy A51
×
Xiaomi Redmi Note 9 Pro Max
Xiaomi Redmi Note 9 Pro Max
×
Samsung Galaxy M31
Samsung Galaxy M31

General

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

Design

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

Display

  • Screen Size
    6.5 inches
    6.67 inches
    6.4 inches
  • Display Type
    Super AMOLED capacitive touchscreen
    IPS LCD capacitive touchscreen
    Super AMOLED capacitive touchscreen
  • Display Resolution
    1080 x 2400 pixels
    1080 x 2400 pixels
    1080 x 2340 pixels
  • Pixel Density
    405 ppi
    395 ppi
    411 ppi
  • Aspect Ratio
    20:9
    20:09
    19.5:9
  • Protection
    Corning Gorilla Glass 3
    Corning Gorilla Glass 5
    Corning Gorilla Glass 3
  • Screen to Body Ratio
    87.4%
    84.60%
    84.1%

Performance

  • OS
    Android 10, One UI 2.1
    Android 10.0 MIUI 11
    Android 10.0 One UI 2.0
  • GPU
    Mali-G72 MP3
    Adreno 618
    Mali-G72 MP3
  • Chipset GP
    Exynos 9611 (10nm)
    Qualcomm SM7125 Snapdragon 720G (8 nm)
    Exynos 9611 (10nm)
  • CPU
    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)
    Octa-core (4x2.3 GHz Cortex-A73 4x1.7 GHz Cortex-A53)

Memory & Storage

  • RAM/Internal Storage
    128GB 6GB RAM, 128GB 8GB RAM
    64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
    64GB 6GB RAM, 128GB 6GB 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)
    64 MP, f/1.9, (wide), 1/1.72", 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
    4K30fps, 1080p30/60/120fps, 720p960fps, gyro-EIS
    2160p30fps, 1080p30fps, gyro-EIS
  • Back Camera Features
    LED flash, panorama, HDR
    LED flash, HDR, panorama
    LED flash, panorama, HDR

Front Camera

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

Sound

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

Battery

  • Battery Capacity
    4000 mAh battery
    5020 mAh battery
    6000 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 charging 33W, 50% in 30 min
    Fast battery charging 15W
  • 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, GALILEO, BDS, NavIC
    Yes, with A-GPS, GLONASS, BDS
  • Radio
    FM radio
    FM radio, recording
    FM radio, RDS, 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 (side-mounted), accelerometer, gyro, proximity, compass
    Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
  • Water Resistant
    Splash proof

Launch

  • Announced On
    2019, December
    2020, March 12
    2020, February 25
  • Status
    Available. Released 2020, January 29
    Available. Released 2020, May 12
    Available. Released 2020, March 5

Best Price

  • Flipkartbest price
    23999Buy
    18780Buy
    18946Buy
  • Amazonbest price
    23999Buy
    16999Buy
    15999Buy
  • Tata CLiQbest price
    -NA-
    21199Buy
    -NA-

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