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OnePlus 7T vs Samsung Galaxy A21

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.

    • Rear camera layout

      7T:
      Triple
      Galaxy A21:
      Quad

    • Release year

      7T:
      2019
      Galaxy A21:
      2020

    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. 7T

      Height:
      160.9 mm
      Width:
      74.4 mm
      Depth:
      8.1 mm
      Weight:
      190 g

    2. 2. Galaxy A21

      Height:
      Unknown
      Width:
      Unknown
      Depth:
      Unknown
      Weight:
      Unknown

      Unavailable dimensions are omitted from the drawing.

    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.

    1. 1. 7T

      Screen diagonal:
      6.55 in
      Aspect ratio (height:width):
      20:9
      Approximate rectangular screen area:
      103.6 cm²

    2. 2. Galaxy A21

      Screen diagonal:
      6.5 in
      Aspect ratio (height:width):
      20:9
      Approximate rectangular screen area:
      102 cm²

    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 7T, Galaxy A21, compared at the same storage capacity.
    Storage7TGalaxy A21
    32 GB Unknown 3 GB RAM
    7T: Original memory entry

    128GB 8GB RAM · 256GB 8GB RAM · UFS3.0

    Practical features

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

    1. 7T

    NFC:
    Yes
    Headphone jack:
    No
    Memory card support:
    No

    2. Galaxy A21

    NFC:
    See details Yes (market/region dependent)
    Headphone jack:
    Yes
    Memory card support:
    See details microSDXC (dedicated slot)

    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. 7T

      3800 mAh

    2. 2. Galaxy A21

      4000 mAh

      +200 mAh versus 7T

    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. 7T2. Galaxy A21

    Everyday essentials
    Everyday essentials — specifications for 7T, Galaxy A21.
    Specification7TGalaxy A21
    Dimensions (HxWxD)
    • 160.9 Х 74.4 Х 8.1 mm
    • Х Х mm
    Weight
    • 190 g
    • 0 g
    Technology
    • Fluid AMOLED
    • Super AMOLED
    Screen size
    • 6.55" inch
    • 6.5" inch
    Screen resolution
    • 1080 x 2400 px
    • 720 x 1600 px
    Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
    • 128GB 8GB RAM
    • 256GB 8GB RAM
    • UFS3.0
    • 32GB 3GB RAM
    Memory card support
    • No
    • microSDXC (dedicated slot)
    Battery Capacity is not battery life. No endurance test is implied.
    • 3800 mAh
    • Non-removable Li-Po
    • 4000 mAh
    • Non-removable Li-Po
    Operating system OS
    • Android 10.0
    • Android 10.0; One UI 2.0
    Chipset
    • Qualcomm SDM855 Snapdragon 855+ (7 nm)
    		 Unknown
    NFC
    • Yes
    • Yes (market/region dependent)
    Headphone jack
    • No
    • Yes
    Display
    Display — specifications for 7T, Galaxy A21.
    Specification7TGalaxy A21
    Touchscreen
    • capacitive touchscreen
    • capacitive touchscreen
    Display colors
    • 16M
    • 16M
    Screen area
    • 103.6 cm2
    • 102.0 cm2
    Screen format
    • 20:9 (height:width)
    • 20:9 (height:width)
    Screen to body ratio
    • 86.5%
    		 Unknown
    PPI /points per inch/
    • 402 PPI
    • 270 PPI
    Screen protection
    • Corning Gorilla Glass
    		 Unknown
    Camera and Video
    Camera and Video — specifications for 7T, Galaxy A21.
    Specification7TGalaxy A21
    Rear camera, main
    • 48 MP
    • Triple
    • 16 MP
    • Quad
    Camera specs
    • 48 MP
    • f/1.6
    • 26mm (wide)
    • 1/2''
    • 0.8µm
    • PDAF
    • OIS -12 MP
    • f/2.2
    • 51mm (telephoto)
    • 1.0µm
    • 2x optical zoom -16 MP
    • 17mm (ultrawide)
    • AF
    • 16 MP
    • (wide)
    • AF -8 MP
    • (ultrawide) -2 MP
    • (macro) -2 MP
    • (depth)
    Functions
    • Auto-HDR
    • LED flash
    • panorama
    • HDR
    Video
    • 1080p@30fps
    • gyro-EIS
    • 1080p@30fps
    Front camera, selfie
    • 16 MP
    • Single
    • 13 MP
    • Single
    Specifications
    • 16 MP
    • f/2.0
    • 25mm (wide)
    • 1/3.1''
    • 1.0µm
    • 13 MP
    • (wide)
    Performance

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

    Performance — specifications for 7T, Galaxy A21.
    Specification7TGalaxy A21
    Processor CPU
    • Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)
    		 Unknown
    Graphics processor GPU
    • Adreno 640 (700 MHz)
    		 Unknown
    Antutu 7 score *
    • 401214
    		 Unknown
    Antutu 8 score *
    • 494705
    		 Unknown
    GeekBench 5 Single Core *
    • 761
    		 Unknown
    GeekBench 5 Multi-Core *
    • 2697
    		 Unknown
    General specs
    General specs — specifications for 7T, Galaxy A21.
    Specification7TGalaxy A21
    Release date
    • 2019
    • September 26
    • 2020
    • April 8
    Colors
    • Frosted Silver
    • Glacier blue
    • Black
    Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
    • 600 EUR
    • 250 EUR
    Body build
    • Front glass (Gorilla Glass)
    • back glass (Gorilla Glass)
    • aluminum frame
    • Glass front
    • plastic back
    • plastic frame
    Communication and Connectivity
    Communication and Connectivity — specifications for 7T, Galaxy A21.
    Specification7TGalaxy A21
    SIM card
    • Dual SIM (Nano-SIM
    • dual stand-by)
    • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
    • dual stand-by)
    Network
    • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 / 1900 & TD-SCDMA -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 -4G - LTE band 1(2100)
    • 2(1900)
    • 3(1800)
    • 4(1700/2100)
    • 5(850)
    • 7(2600)
    • 8(900)
    • 12(700)
    • 13(700)
    • 17(700)
    • 18(800)
    • 19(800)
    • 20(800)
    • 25(1900)
    • 26(850)
    • 28(700)
    • 29(700)
    • 32(1500)
    • 34(2000)
    • 38(2600)
    • 39(1900)
    • 40(2300)
    • 41(2500)
    • 66(1700/2100) - EU LTE band 1(2100)
    • 30(2300)
    • 46
    • 48
    • 66(1700/2100)
    • 71(600) - NA LTE band 1(2100)
    • 41(2500) - CN
    • IN
    • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only) -3G - HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 1700(AWS) / 1900 / 2100 -4G - LTE
    Speed
    • HSPA 42.2/5.76 Mbps
    • LTE-A (5CA) Cat18 1200/150 Mbps
    • HSPA 42.2/5.76 Mbps
    • LTE Cat4 150/50 Mbps
    GPRS
    • Yes
    • Yes
    Edge
    • Yes
    • Yes
    Wi-Fi
    • Wi-Fi 802.11 a/b/g/n/ac
    • dual-band
    • Wi-Fi Direct
    • DLNA
    • hotspot
    • Wi-Fi 802.11 b/g/n
    • Wi-Fi Direct
    • hotspot
    GPS
    • Yes
    • with dual-band A-GPS
    • GLONASS
    • BDS
    • GALILEO
    • SBAS
    • Yes
    • with A-GPS
    • GLONASS
    • BDS
    USB
    • 3.1
    • Type-C 1.0 reversible connector
    • USB On-The-Go
    • Yes
    Bluetooth
    • 5.0
    • A2DP
    • LE
    • aptX HD
    • 5.0
    • A2DP
    • LE
    Music and Audio
    Music and Audio — specifications for 7T, Galaxy A21.
    Specification7TGalaxy A21
    Radio
    • No
    • FM radio
    Others
    • DCI-P3 100% -HDR10+ -90Hz
    • Active noise cancellation with dedicated mic -Dolby Atmos sound
    		 Unknown
    Other features
    Other features — specifications for 7T, Galaxy A21.
    Specification7TGalaxy A21
    Dop
    • Sensors Fingerprint (under display
    • optical)
    • accelerometer
    • gyro
    • proximity
    • compass - Fast battery charging 30W (Warp Charge 30T)
    • Sensors Fingerprint (rear-mounted)
    • accelerometer
    • proximity
    • compass - Fast charging 15W - Preliminary specifications

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