Home Phone comparison Samsung Galaxy M21 and Samsung Galaxy M31 - Which is better?

Samsung Galaxy M21 vs Samsung Galaxy M31

45 out 100
Samsung Galaxy M21
VS
46 out 100
Samsung Galaxy M31
Samsung Galaxy M21
Samsung Galaxy M31

Compared 2 smartphones : Samsung Galaxy M21 Manufactured in March, 2020, with display 6.4 with chipsetSamsung Exynos 7 Octa 9611, vs Samsung Galaxy M31, Manufactured in March, 2020 with chipsetSamsung Exynos 7 Octa 9611. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery Life
  6. Cameras
  7. Comments (0)

Key Differences

Device key advantages
Reasons to choose Samsung Galaxy M21
  • Lighter design: 188g vs 191g
Reasons to choose Samsung Galaxy M31

    Versions

    Available versions and configurations
    Memory Options - 4/64 GB
    - 6/128 GB    		 - 6/64 GB
    - 6/128 GB
    - 8/128 GB

    Review

    Key Specs Samsung Galaxy M21 and Samsung Galaxy M31
    Display
    Color accuracy, sharpness & brightness
    Camera
    Main & front camera tests
    Performance
    App & system performance
    Games
    3D gaming performance
    Battery
    Battery life, charging speed & type
    Connectivity
    Connectivity features
    NanoReview Score
    Overall score by NanoReview
    Adjust each parameter’s importance to find the best match for you.
    Customize your score
    Function
    Importance (Weight)
    Display:
    Camera:
    Performance:
    Gaming:
    Battery:
    Connectivity:
    Higher weight means greater impact on NanoReview score.

    Tests & specs

    Specs & test comparison
    Smartphones:
    Samsung Galaxy M21
    vs
    Samsung Galaxy M31

    Display

    Display quality comparison
    Type Super AMOLED Super AMOLED
    Size 6.4 in 6.4 in
    Resolution 1080x2340 pixels 1080x2340 pixels
    Aspect ratio 19.5:9 19.5:9
    Pixel density 403 ppi 403 ppi
    Refresh rate 60 Hz 60 Hz
    Adaptive refresh rate No No
    Max brightness 630 nits 600 nits
    HDR support No Yes HDR10
    Screen-to-body ratio 84.2 % 84.1 %
    Features Always-On Display Always-On Display
    Display test
    Peak brightness (auto)
    Samsung Galaxy M21
    608 nits
    Samsung Galaxy M31
    614 nits
    sRGB gamut141.3 %142 %
    PWM (Flicker)215 Hz208 Hz
    Response time9 ms8.5 ms
    Contrast∞ Infinite∞ Infinite
    Sources: NotebookCheck [Samsung Galaxy M21], [Samsung Galaxy M31]

    Design & Build

    Design and ergonomics comparison
    Height 159 mm (6.26 in) 159.2 mm (6.27 in)
    Width 75.1 mm (2.96 in) 75.1 mm (2.96 in)
    Thickness 8.9 mm (0.35 in) 8.9 mm (0.35 in)
    Weight 188 g (6.63 oz) 191 g (6.74 oz)
    Water resistance No No
    Back panel Plastic Plastic
    Frame Plastic Plastic
    Colors - Black
    - Blue
    - Green    		 - Black
    - Blue
    - Red
    Fingerprint sensor Yes rear Yes rear
    Screen-to-body ratio
    Samsung Galaxy M21
    84.2 %
    Samsung Galaxy M31
    84.1 %

    Performance

    Testing Samsung Galaxy M21 and Samsung Galaxy M31 In benchmarks
    Processor
    Chipset Samsung Exynos 7 Octa 9611 Samsung Exynos 7 Octa 9611
    Max Frequency 2300 MHz 2300 MHz
    CPU Cores 8 (4 + 4) 8 (4 + 4)
    Architecture - 4/1.7 (Cortex-A53)
    - 4/2.3 (Cortex-A73)    		 - 4/1.7 (Cortex-A53)
    - 4/2.3 (Cortex-A73)
    Process Samsung Samsung
    Transistor Size 10 nm 10 nm
    Neural Processor Yes Yes
    Graphics Mali-G72 MP3 Mali-G72 MP3
    GPU Cores 54 54
    GPU Frequency 850 MHz 850 MHz
    FLOPS 113.8 GFLOPS 113.8 GFLOPS
    GeekBench v6
    Geekbench 6 (Single-Core)
    Samsung Galaxy M21
    514
    Samsung Galaxy M31
    505
    Geekbench 6 (Multi-Core)
    Samsung Galaxy M21
    1558
    Samsung Galaxy M31
    1547
    Geekbench 6 (Single-Core)514505
    Geekbench 6 (Multi-Core)15581547
    AnTuTu 10
    AnTuTu 10
    Samsung Galaxy M21
    266455
    Samsung Galaxy M31
    257150
    CPU7646873640
    GPU4575645350
    Memory7026962516
    UX7396275644
    NanoReview Score266455257150
    3DMark Wild Life
    3DMark Wild Life
    Samsung Galaxy M21
    816
    Samsung Galaxy M31
    820
    Max Surface Temp.44.1 °C45.2 °C
    Stability73 %74 %
    Graphics Test4 fps4 fps
    Graphics Score816820
    Sources: 3DMark [Samsung Galaxy M21], [Samsung Galaxy M31]

    Memory

    RAM
    RAM Size - 4 GB
    - 6 GB    		 6 GB
    Memory Type LPDDR4X LPDDR4X
    Memory Frequency 1866 MHz 1866 MHz
    Channels 2 2
    Storage
    Storage Capacity- 64 GB
    - 128 GB    		128 GB
    Storage TypeUFS 2.1UFS 2.1
    Memory CardMicroSDMicroSD

    Software

    OS Android 10.0 (Upgradeable to Android 12.0) Android 10 (Upgradeable to Android 12)
    OS Size 14.5 GB 15 GB
    UI Skin One Ui 4.1 One UI 4.1

    Battery

    Volume 6000 mAh 6000 mAh
    Max Charging Power 15 W 15 W
    Battery Type Li-ion Li-ion
    Removable No No
    Wireless Charging No No
    Reverse Charging No No
    Fast Charging Yes Samsung Adaptive Fast Charge (25% in 30 min) Yes Samsung Adaptive Fast Charge (45% in 60 min)
    Full Charge Time 2:35 h 2:25 h
    Battery Life Test
    Battery Life
    Samsung Galaxy M21
    24:03
    Samsung Galaxy M31
    24:27
    Web Browsing10:07 h10:13 h
    Video Playback13:59 h14:16 h
    Games05:35 h05:44 h
    Standby Mode115 h117 h

    Main camera

    Matrix 48 MP 64 MP
    Photo resolution 8000x6000 pixels 9248x6920 pixels
    Zoom Digital Digital
    Flash LED LED
    Stabilization Digital Digital
    8K Recording No No
    4K Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
    1080p Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
    Slow Motion 240 fps (720p) 240 fps (720p)
    Wide-angle lens 123 ° 123 °
    Lenses count Standard: 48 MP
    Ultra-wide: 8 MP
    Depth: 5 MP    		 Standard: 64 MP
    Ultra-wide: 8 MP
    Macro: 5 MP
    Depth: 5 MP
    Features - Bokeh effect
    - Pro mode    		 - Bokeh effect
    - Pro mode
    Main lens
    Matrix48 MP64 MP
    Aperturef/2.0f/1.8
    Focal length26 mm26 mm
    SensorSamsung S5KGM2ISOCELL Bright GW1
    Sensor size1/2.01/1.72
    Pixel size0.8 μm0.8 μm
    AutofocusPhase autofocusPhase autofocus
    StabilizationDigitalDigital
    Ultra-wide lens
    Matrix8 MP8 MP
    Aperturef/2.2f/2.2
    Focal length12 mm12 mm
    Sensor size1/4.01/4.0
    Pixel size1.12 μm1.12 μm
    StabilizationDigitalDigital

    Front camera

    Matrix 20 MP 32 MP
    Photo resolution 5184x3888 pixels 6528x4896 pixels
    Aperture f/2.0 f/2.0
    Focal length 26 mm 26 mm
    Sensor CMOS Sony IMX616
    Sensor size n/a 1/2.8
    Pixel size n/a 0.8 μm
    Autofocus No No
    Stabilization Digital Digital
    Video resolution 1080p (Full HD) at 30 fps 2160p (4K) at 30 fps
    TOF 3D sensor No No

    Connectivity

    Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 5 (802.11 a/b/g/n/ac)
    Wi-Fi features - Dual Band
    - Wi-Fi Direct
    - Wi-Fi Hotspot    		 - Dual Band
    - Wi-Fi Direct
    - Wi-Fi Hotspot
    - Wi-Fi Display
    Bluetooth version 5 5
    Bluetooth features PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP
    USB type USB Type-C USB Type-C
    USB version 2 2
    USB features - Charging
    - USB Storage Mode
    - OTG    		 - Charging
    - USB Storage Mode
    - OTG
    GPS - GPS
    - GLONASS
    - Beidou
    - Galileo    		 - GPS
    - GLONASS
    - Beidou
    - Galileo
    NFC* Yes Varies by region
    Infrared Port No No
    Connectivity
    SIM Count*22
    SIM TypeNanoNano
    SIM ModeDual SIM StandbyDual SIM Standby
    eSIM Support *NoNo
    Hybrid SlotNoNo
    2G BandsGSM850, GSM900, DCS1800, PCS1900GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
    3G BandsB1 (2100), B2 (1900), B5(850), B8 (900)HSDPA 850 / 900 / 1900 / 2100
    LTE Bands*LTE (B1/B3/B5/B7/B8/B20/B38/B40/B41)LTE (B1/B3/B5/B8/B20/B40/B41)
    LTE category1212
    5G SupportNoNo

    Sound

    Speakers Mono Mono
    3.5 mm Jack Yes Yes
    FM Radio Yes Yes
    Dolby Atmos Yes Yes
    Speaker Test
    Max Volume
    Samsung Galaxy M21
    83.8 dB
    Samsung Galaxy M31
    81.7 dB

    Other

    Class Mid-range Mid-range
    Announced March, 2020 yr February, 2020 yr
    Release Date March, 2020 yr March, 2020 yr
    Launch Price ($) 210 220
    Sensors - Proximity Sensor
    - Gyroscope
    - Accelerometer
    - Ambient Light Sensor
    - Compass
    - Fingerprint sensor    		 - Proximity Sensor
    - Gyroscope
    - Accelerometer
    - Ambient Light Sensor
    - Compass
    - Fingerprint sensor
    * Attention! Config, frequencies, NFC, and other specs may vary by region.

    Results

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    Total Votes: 1

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