Home Phone comparison Samsung Galaxy A51 and Samsung Galaxy A20s - Which is better?

Samsung Galaxy A51 vs Samsung Galaxy A20s

41 out 100
Samsung Galaxy A51
VS
33 out 100
Samsung Galaxy A20s
Samsung Galaxy A51
Samsung Galaxy A20s

Compared 2 smartphones : Samsung Galaxy A51 Manufactured in December, 2019, with display 6.5 with chipsetSamsung Exynos 9 Octa 9611, vs Samsung Galaxy A20s, Manufactured in October, 2019 with chipsetQualcomm Snapdragon 450. 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 A51
  • Higher pixel density: 405ppi
  • Lighter design: 172g vs 183g
  • Newer Bluetooth version: 5 vs 4.2
Reasons to choose Samsung Galaxy A20s

    Versions

    Available versions and configurations
    Memory Options - 4/64 GB
    - 4/128 GB
    - 6/128 GB
    - 8/128 GB
    - 8/256 GB    		 - 2/32 GB
    - 3/32 GB
    - 4/64 GB

    Review

    Key Specs Samsung Galaxy A51 and Samsung Galaxy A20s
    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 A51
    vs
    Samsung Galaxy A20s

    Display

    Display quality comparison
    Type Super AMOLED IPS LCD
    Size 6.5 in 6.5 in
    Resolution 1080x2400 pixels 720x1560 pixels
    Aspect ratio 20:9 19:9
    Pixel density 405 ppi 259 ppi
    Refresh rate 60 Hz 60 Hz
    Adaptive refresh rate No No
    Max brightness 400 nits 400 nits
    HDR support No No
    Screen-to-body ratio 87.5 % 83.3 %
    Features Always-On Display n/a
    Display test
    Peak brightness (auto)
    Samsung Galaxy A51
    631 nits
    Samsung Galaxy A20s
    381 nits
    sRGB gamut98.8 %94.5 %
    PWM (Flicker)242 Hzn/a
    Response time25 ms36 ms
    Contrast∞ Infinite914:1
    Sources: NotebookCheck [Samsung Galaxy A51], [Samsung Galaxy A20s]

    Design & Build

    Design and ergonomics comparison
    Height 158.5 mm (6.24 in) 163.3 mm (6.43 in)
    Width 73.6 mm (2.9 in) 77.5 mm (3.05 in)
    Thickness 7.9 mm (0.31 in) 8 mm (0.31 in)
    Weight 172 g (6.07 oz) 183 g (6.46 oz)
    Water resistance No No
    Back panel Plastic Plastic
    Frame Plastic Plastic
    Colors - White
    - Black    		 - Black
    - Blue
    - Green
    - Red
    Fingerprint sensor Yes In-Display Yes rear
    Screen-to-body ratio
    Samsung Galaxy A51
    87.5 %
    Samsung Galaxy A20s
    83.3 %

    Performance

    Testing Samsung Galaxy A51 and Samsung Galaxy A20s In benchmarks
    Processor
    Chipset Samsung Exynos 9 Octa 9611 Qualcomm Snapdragon 450
    Max Frequency 2300 MHz 1800 MHz
    CPU Cores 8 (4 + 4) 8 (8)
    Architecture - 4/1.7 (Cortex-A53)
    - 4/2.3 (Cortex-A73)    		 8/1.8 (Cortex-A53)
    Process Samsung Samsung
    Transistor Size 10 nm 14 nm
    Neural Processor Yes Hexagon 546
    Graphics Mali-G72 MP3 Adreno 506
    GPU Cores 54 96
    GPU Frequency 850 MHz 650 MHz
    FLOPS 113.8 GFLOPS 115.2 GFLOPS
    GeekBench v6
    Geekbench 6 (Single-Core)
    Samsung Galaxy A51
    512
    Samsung Galaxy A20s
    476
    Geekbench 6 (Multi-Core)
    Samsung Galaxy A51
    1556
    Samsung Galaxy A20s
    1519
    Geekbench 6 (Single-Core)512476
    Geekbench 6 (Multi-Core)15561519
    AnTuTu 10
    AnTuTu 10
    Samsung Galaxy A51
    268760
    Samsung Galaxy A20s
    135122
    CPU8385748967
    GPU4516614577
    Memory6382843997
    UX7590927581
    NanoReview Score268760135122
    3DMark Wild Life
    3DMark Wild Life
    Samsung Galaxy A51
    812
    Samsung Galaxy A20s
    n/a
    Max Surface Temp.42.2 °Cn/a
    Stability95 %n/a
    Graphics Test4 fpsn/a
    Graphics Score812n/a
    Sources: 3DMark [Samsung Galaxy A51]

    Memory

    RAM
    RAM Size - 4 GB
    - 6 GB    		 3 GB
    Memory Type LPDDR4X LPDDR4X
    Memory Frequency 1866 MHz 1333 MHz
    Channels 2 1
    Storage
    Storage Capacity- 64 GB
    - 128 GB    		32 GB
    Storage TypeUFS 2.0eMMC 5.1
    Memory CardMicroSDMicroSD

    Software

    OS Android 10 (Upgradeable to Android 13) Android 9.0 (Upgradeable to Android 11)
    OS Size 23 GB 11 GB
    UI Skin One UI 5.1 One UI 3.1

    Battery

    Volume 4000 mAh 4000 mAh
    Max Charging Power 15 W 15 W
    Battery Type Li-Po Li-Po
    Removable No No
    Wireless Charging No No
    Reverse Charging No No
    Fast Charging Yes (40% in 35 min) Yes (50% in 40 min)
    Full Charge Time 1:50 h 2:20 h
    Battery Life Test
    Battery Life
    Samsung Galaxy A51
    17:53
    Samsung Galaxy A20s
    20:26
    Web Browsing07:15 h07:55 h
    Video Playback11:25 h12:11 h
    Games04:49 h04:49 h
    Standby Mode81 h102 h

    Main camera

    Matrix 48 MP 13 MP
    Photo resolution 8000x6000 pixels 4128x3096 pixels
    Zoom Digital Digital
    Flash LED LED
    Stabilization Digital Digital
    8K Recording No No
    4K Recording Yes (Up to 30 fps) No
    1080p Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
    Slow Motion 960 fps (720p) 120 fps (720p)
    Wide-angle lens 120 ° 123 °
    Lenses count Standard: 48 MP
    Ultra-wide: 12 MP
    Macro: 5 MP
    Depth: 5 MP    		 Standard: 13 MP
    Ultra-wide: 8 MP
    Depth: 5 MP
    Features - Bokeh effect
    - Pro mode    		 - Bokeh effect
    - Pro mode
    Main lens
    Matrix48 MP13 MP
    Aperturef/2.0f/1.8
    Focal length26 mm27 mm
    SensorSony IMX582n/a
    Sensor size1/2n/a
    Pixel size0.8 μmn/a
    AutofocusPhase autofocusPhase autofocus
    StabilizationDigitalDigital
    Ultra-wide lens
    Matrix12 MP8 MP
    Aperturef/2.2f/2.2
    Focal length13 mm13 mm
    Sensor sizen/a1/4.0
    Pixel size1.12 μmn/a
    StabilizationDigitalDigital

    Front camera

    Matrix 32 MP 8 MP
    Photo resolution 6560x4928 pixels 3264x2448 pixels
    Aperture f/2.2 f/2.0
    Focal length 26 mm n/a
    Sensor Samsung S5KGD1 CMOS
    Sensor size 1/2.8 n/a
    Pixel size 0.8 μm n/a
    Autofocus No No
    Stabilization Digital Digital
    Video resolution 2160p (4K) at 30 fps 720p at 30 fps
    TOF 3D sensor No No

    Connectivity

    Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 4 (802.11 a/b/g/n)
    Wi-Fi features - Dual Band
    - Wi-Fi Direct
    - Wi-Fi Hotspot
    - Wi-Fi Display    		 - Wi-Fi Direct
    - Wi-Fi Hotspot
    Bluetooth version 5 4.2
    Bluetooth features PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP LE, 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 No
    Infrared Port No No
    Connectivity
    SIM Count*22
    SIM TypeNanoNano
    SIM ModeDual SIM StandbyDual SIM Standby
    eSIM Support *NoNo
    Hybrid SlotNoNo
    2G BandsGSM 850 / 900 / 1800 / 2100 / 2600GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
    3G BandsUMTS 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1900 / 2100
    LTE Bands*LTE (B850/B900/B1800/B2100/B2600)LTE (B1/B3/B5/B7/B8/B20/B38/B40/B41)
    LTE category124
    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 A51
    81.7 dB
    Samsung Galaxy A20s
    81.5 dB

    Other

    Class Mid-range Mid-range
    Announced December, 2019 yr September, 2019 yr
    Release Date December, 2019 yr October, 2019 yr
    Launch Price ($) 399 190
    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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