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Samsung Galaxy M21 vs vivo U10

Compare recorded specifications, size and practical differences.

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    Key differences

    Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

    • Display technology

      OLED versus LCD

      Galaxy M21:
      OLED
      U10:
      LCD

    • Width

      Galaxy M21: 1.7 mm narrower

      Galaxy M21:
      75.1 mm
      U10:
      76.8 mm

    • Chipset

      Galaxy M21:
      Exynos 9611 (10nm)
      U10:
      Qualcomm SDM665 Snapdragon 665 (11 nm)

    • Release year

      Galaxy M21:
      2020
      U10:
      2019

    Physical size

    Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

    1. 1. Galaxy M21

      Height:
      159 mm
      Width:
      75.1 mm
      Depth:
      8.9 mm

    2. 2. U10

      Height:
      159.4 mm
      Width:
      76.8 mm +1.7 mm versus Galaxy M21
      Depth:
      8.9 mm

    Weight

    Bars start at zero and share a scale within this chart.

    1. 1. Galaxy M21

      188 g

    2. 2. U10

      190.5 g

      +2.5 g versus Galaxy M21

    Screen size

    Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

    At least two phones need compatible screen dimensions for a drawing.

    1. 1. Galaxy M21

      Screen diagonal:
      6.4 in
      Aspect ratio (height:width):
      19.5:9
      Approximate rectangular screen area:
      100.5 cm²

    2. 2. U10

      U10: Screen geometry unavailable or conflicting.

    Memory variants

    Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

    Recorded RAM for Galaxy M21, U10, compared at the same storage capacity.
    StorageGalaxy M21U10
    32 GB Not recorded 3 GB RAM
    64 GB Recorded for all phones 4 GB RAM 3 / 4 GB RAM Alternative RAM configurations
    128 GB 6 GB RAM Not recorded

    Practical features

    Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

    1. Galaxy M21

    NFC:
    Unknown
    Headphone jack:
    Yes
    Memory card support:
    See details microSDXC (dedicated slot)

    2. U10

    NFC:
    Unknown
    Headphone jack:
    Yes
    Memory card support:
    See details microSD · up to 256 GB

    Battery capacity

    Capacity is not battery life. No endurance test is implied.

    Recorded battery capacity

    Bars start at zero and share a scale within this chart.

    1. 1. Galaxy M21

      6000 mAh

      +1000 mAh versus U10

    2. 2. U10

      5000 mAh

    Specifications

    Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

    1. Galaxy M212. U10

    Everyday essentials
    Everyday essentials — specifications for Galaxy M21, U10.
    SpecificationGalaxy M21U10
    Dimensions (HxWxD)
    • 159 Х 75.1 Х 8.9 mm
    • 159.4 Х 76.8 Х 8.9 mm
    Weight
    • 188 g
    • 190.5 g
    Technology
    • Super AMOLED
    • IPS LCD
    Screen size
    • 6.4" inch
    • 6.35" inch
    Screen resolution
    • 1080 x 2340 px
    • 720 x 1544 px
    Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
    • 64GB 4GB RAM
    • 128GB 6GB RAM
    • 32GB 3GB RAM
    • 64GB 3GB RAM
    • 64GB 4GB RAM
    Memory card support
    • microSDXC (dedicated slot)
    • microSD
    • up to 256 GB
    Battery Capacity is not battery life. No endurance test is implied.
    • 6000 mAh
    • Non-removable Li-Po
    • 5000 mAh
    • Non-removable Li-Po
    Operating system OS
    • Android 10.0; One UI 2
    • Android 9.0 (Pie)
    Chipset
    • Exynos 9611 (10nm)
    • Qualcomm SDM665 Snapdragon 665 (11 nm)
    Headphone jack
    • Yes
    • Yes
    Display
    Display — specifications for Galaxy M21, U10.
    SpecificationGalaxy M21U10
    Touchscreen
    • capacitive touchscreen
    • capacitive touchscreen
    Display colors
    • 16M
    • 16M
    Screen area
    • 100.5 cm2
    • 99.6 cm2
    Screen format
    • 19.5:9 (height:width)
    		 Unknown
    Screen to body ratio
    • 84.2%
    • 81.4%
    PPI /points per inch/
    • 403 PPI
    • 0 PPI
    Screen protection
    • Corning Gorilla Glass 3
    		 Unknown
    Camera and Video
    Camera and Video — specifications for Galaxy M21, U10.
    SpecificationGalaxy M21U10
    Rear camera, main
    • 48 MP
    • Triple
    • 13 MP
    • Triple
    Camera specs
    • 48 MP
    • f/2.0
    • 26mm (wide)
    • 1/2.0''
    • 0.8µm
    • PDAF -8 MP
    • f/2.2
    • 12mm (ultrawide)
    • 1/4.0''
    • 1.12µm -5 MP
    • (depth)
    • 13 MP
    • f/2.2
    • (wide)
    • PDAF -8 MP
    • 13mm (ultrawide) -2 MP
    • f/2.4
    • depth sensor
    Functions
    • HDR
    • LED flash
    • HDR
    • panorama
    Video
    • 1080p@30fps
    • 1080p@30fps
    Front camera, selfie
    • 20 MP
    • Single
    • 8 MP
    • Single
    Specifications
    • 20 MP
    • f/2.0
    • 26mm (wide)
    • 8 MP
    • f/1.8
    Performance

    Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

    Performance — specifications for Galaxy M21, U10.
    SpecificationGalaxy M21U10
    Processor CPU
    • Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
    • Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
    Graphics processor GPU
    • Mali-G72 MP3
    • Adreno 610
    Antutu 7 score * Unknown
    • 143200
    Antutu 8 score *
    • 182451
    		 Unknown
    General specs
    General specs — specifications for Galaxy M21, U10.
    SpecificationGalaxy M21U10
    Release date
    • 2020
    • March 18
    • 2019
    • September
    Colors
    • Midnight Blue
    • Raven Black
    • Thunder Black
    • Electric Blue
    • Black
    • Blue
    • Red
    Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
    • 160 EUR
    • 120 EUR
    Body build
    • Glass front (Gorilla Glass 3)
    • plastic back
    • plastic frame
    		 Unknown
    Communication and Connectivity
    Communication and Connectivity — specifications for Galaxy M21, U10.
    SpecificationGalaxy M21U10
    SIM card
    • Dual SIM (Nano-SIM
    • dual stand-by)
    • Dual SIM (Nano-SIM
    • dual stand-by)
    Network
    • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
    • 3(1800)
    • 5(850)
    • 7(2600)
    • 8(900)
    • 20(800)
    • 38(2600)
    • 40(2300)
    • 41(2500)
    • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100)
    • 3(1800)
    • 5(850)
    • 8(900)
    • 38(2600)
    • 40(2300)
    • 41(2500)
    Speed
    • HSPA
    • LTE-A
    • HSPA 42.2/5.76 Mbps
    • LTE-A (2CA) Cat6 400/50 Mbps
    GPRS
    • Yes
    • Yes
    Edge
    • Yes
    • Yes
    Wi-Fi
    • 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
    • BDS
    • Yes
    • with A-GPS
    • GLONASS
    USB
    • 2.0
    • Type-C 1.0 reversible connector
    • microUSB 2.0
    • USB On-The-Go
    Bluetooth
    • 5.0
    • A2DP
    • LE
    • 5.0
    • A2DP
    • LE
    Harmful irradiation
    • SAR - 0.47 W/kg (head)
    		 Unknown
    Music and Audio
    Music and Audio — specifications for Galaxy M21, U10.
    SpecificationGalaxy M21U10
    Radio
    • FM radio
    • RDS
    • recording
    • FM radio
    Others
    • 420 nits max brightness
    • Active noise cancellation with dedicated mic
    Other features
    Other features — specifications for Galaxy M21, U10.
    SpecificationGalaxy M21U10
    Dop
    • Sensors Fingerprint (rear-mounted)
    • accelerometer
    • gyro
    • proximity
    • compass - Fast charging 15W
    • Sensors Fingerprint (rear-mounted)
    • accelerometer
    • proximity
    • compass - Fast battery charging 18W - Also known as vivo U3x