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Samsung Galaxy M31s vs Samsung Galaxy A51 vs Samsung Galaxy A71

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Last Updated:  Tue, 25 Aug'20
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Samsung Galaxy M31s
Samsung Galaxy M31s
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Samsung Galaxy A51
Samsung Galaxy A51
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Samsung Galaxy A71
Samsung Galaxy A71
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Samsung Galaxy M31s
Samsung Galaxy M31s
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Samsung Galaxy A51
Samsung Galaxy A51
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Samsung Galaxy A71
Samsung Galaxy A71

General

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

Design

  • Height
    6.27 inches
    6.24 inches
    6.44 inches
  • Width
    2.92 inches
    2.90 inches
    2.99 inches
  • Thickness
    0.36 inches
    0.31 inches
    0.30 inches
  • Weight
    203 g
    172 g
    179 g
  • Color
    Mirage Black, Mirage Blue
    Prism Crush Black, Prism Crush White, Prism Crush Blue
    Haze Crush Silver, Prism Crush Black, Prism Crush Blue, Prism Crush Silver
  • Build
    Glass front (Gorilla Glass 3), plastic back, plastic frame
    Glass front (Gorilla Glass 3), plastic back, plastic frame

Display

  • Screen Size
    6.5 inches
    6.5 inches
    6.7 inches
  • Display Type
    Super AMOLED capacitive touchscreen
    Super AMOLED capacitive touchscreen
    Super AMOLED capacitive touchscreen
  • Display Resolution
    1080 x 2400 pixels
    1080 x 2400 pixels
    1080 x 2400 pixels
  • Pixel Density
    405 ppi
    405 ppi
    393 ppi
  • Aspect Ratio
    20:09
    20:9
    20:09
  • Protection
    Corning Gorilla Glass 3
    Corning Gorilla Glass 3
    Corning Gorilla Glass 3
  • Screen to Body Ratio
    91 %
    87.4%
    87.20%

Performance

  • OS
    Android 10, One UI 2.0
    Android 10, One UI 2.1
    Android 10.0 One UI 2
  • GPU
    Mali-G72 MP3
    Mali-G72 MP3
    Adreno 618
  • Chipset GP
    Samsung Exynos 9 Octa 9611
    Exynos 9611 (10nm)
    Qualcomm SDM730 Snapdragon 730 (8 nm)
  • CPU
    Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
    Octa-core (4x2.3 GHz Cortex-A73 4x1.7 GHz Cortex-A53)
    Octa-core (2x2.2 GHz Kryo 470 Gold 6x1.8 GHz Kryo 470 Silver)

Memory & Storage

  • RAM/Internal Storage
    128GB 6GB RAM, 128GB 8GB RAM
    128GB 6GB RAM, 128GB 8GB RAM
    128GB 8GB RAM
  • Expandable Memory
    microSDXC (dedicated slot), Up to 512 GB
    microSDXC (dedicated slot)
    microSD, up to 1 TB (dedicated slot)

Back Camera

  • Quad Camera
    64 MP, f/1.8, 26mm (wide), 1/1.72, 0.8 micron|12 MP, f/2.2, 123degree (ultrawide)|5 MP, f/2.4, (macro)|5 MP, f/2.4, (depth)
    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/1.8, 26mm (wide), 1/1.7, 0.8 micron|12 MP, f/2.2, 13mm (ultrawide), 1.12 micron|5 MP, f/2.4, (wide), dedicated macro camera|5 MP, f/2.2, (wide), 1/5.0, 1.12 micron, depth sensor
  • Autofocus
    PDAF
    PDAF
    PDAF
  • OIS
    No
  • Back Camera Video
    4K30fps, 1080p30fps, gyro-EIS
    4K30fps, 1080p30/120fps; gyro-EIS
    2160p30fps, 1080p30/240fps
  • Back Camera Features
    LED flash, panorama, HDR
    LED flash, panorama, HDR
    LED flash, panorama, HDR

Front Camera

  • Single Camera
    32 MP, f/2.0, 26mm (wide), 1/2.8, 0.8 micron
    32 MP, f/2.2, 26mm (wide), 1/2.8, 0.8 micron
    32 MP, f/2.2, 26mm (wide), 1/2.8, 0.8 micron
  • Front Camera Video
    4K30fps, 1080p30fps
    1080p30fps
    1080p30fps
  • Front Camera Features
    HDR
    HDR
    HDR

Sound

  • HeadPhone Jack
    Yes
    Yes
    Yes
  • Loudspeaker
    Yes
    Yes
    Yes
  • Audio Features
    Dolby Atmos
    Dolby Atmos
    Active noise cancellation with dedicated mic

Battery

  • Battery Capacity
    6000 mAh battery
    4000 mAh battery
    4500 mAh battery
  • User Replaceable
    Non-removable
    Non-removable
    Non-removable
  • Talk Time
    Up to 51 Hours (4G LTE)
    Up to 32 (Hours 4G LTE)
  • Music Time
    Up to 125 Hours Audio Playback Time
    Up to 87 (Hours)
  • Charging
    Fast charging 25W|Reverse charging
    Fast charging 15W
    Fast battery charging 25W
  • 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
    Yes, with A-GPS, GLONASS, GALILEO, BDS
  • Radio
    FM radio, RDS, recording
    FM radio
    FM radio
  • USB
    2.0, Type-C 1.0 reversible connector, USB On-The-Go
    2.0, Type-C 1.0 reversible connector, USB On-The-Go
    2.0, Type-C 1.0 reversible connector, USB On-The-Go
  • NFC
    No
    Yes
    Yes
  • SIM
    Dual SIM (Nano-SIM, dual stand-by)
    Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
    Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
  • Network Support
    GSM / HSPA / LTE
    GSM / HSPA / LTE
    GSM / HSPA / LTE

Miscellaneous Features

  • Sensors
    Fingerprint (side-mounted), Accelerometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor, Virtual Proximity Sensing
    Fingerprint (under display, Accelerometer, Fingerprint Sensor, Gyro Sensor, Geomagnetic Sensor, Hall Sensor, Light Sensor, Virtual Proximity Sensing
    Fingerprint (under display, optical), accelerometer, gyro, proximity, compass

Launch

  • Announced On
    2020, July 30
    2019, December
    2019, December
  • Status
    Available. Released 2020, July 30
    Available. Released 2020, January 29
    Available. Released 2020, February 24

Best Price

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