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Apple iPhone 4 vs Samsung Galaxy M21

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

      iPhone 4:
      LCD
      Galaxy M21:
      OLED

    • Weight

      iPhone 4: 51 g lighter

      iPhone 4:
      137 g
      Galaxy M21:
      188 g

    • Width

      iPhone 4: 16.5 mm narrower

      iPhone 4:
      58.6 mm
      Galaxy M21:
      75.1 mm

    • Screen diagonal

      iPhone 4: 2.9 in smaller diagonal

      iPhone 4:
      3.5 in
      Galaxy M21:
      6.4 in

    • Chipset

      iPhone 4:
      Apple A4 (45 nm)
      Galaxy M21:
      Exynos 9611 (10nm)

    • Rear camera layout

      iPhone 4:
      Single
      Galaxy M21:
      Triple

    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. iPhone 4

      Height:
      115.2 mm
      Width:
      58.6 mm
      Depth:
      9.3 mm

    2. 2. Galaxy M21

      Height:
      159 mm +43.8 mm versus iPhone 4
      Width:
      75.1 mm +16.5 mm versus iPhone 4
      Depth:
      8.9 mm

    Weight

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

    1. 1. iPhone 4

      137 g

    2. 2. Galaxy M21

      188 g

      +51 g versus iPhone 4

    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. iPhone 4

      Screen diagonal:
      3.5 in
      Aspect ratio (height:width):
      3:2
      Approximate rectangular screen area:
      36.5 cm²

    2. 2. Galaxy M21

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

    Galaxy M21 has approximately 175.6% more rectangular screen area than iPhone 4.

    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 iPhone 4, Galaxy M21, compared at the same storage capacity.
    StorageiPhone 4Galaxy M21
    64 GB Unknown 4 GB RAM
    128 GB Unknown 6 GB RAM
    iPhone 4: Original memory entry

    8/16/32 GB · 512 MB RAM

    Practical features

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

    1. iPhone 4

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

    2. Galaxy M21

    NFC:
    Unknown
    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. iPhone 4

      1420 mAh

    2. 2. Galaxy M21

      6000 mAh

      +4580 mAh versus iPhone 4

    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. iPhone 42. Galaxy M21

    Everyday essentials
    Everyday essentials — specifications for iPhone 4, Galaxy M21.
    SpecificationiPhone 4Galaxy M21
    Dimensions (HxWxD)
    • 115.2 Х 58.6 Х 9.3 mm
    • 159 Х 75.1 Х 8.9 mm
    Weight
    • 137 g
    • 188 g
    Technology
    • LED-backlit IPS LCD
    • Super AMOLED
    Screen size
    • 3.5" inch
    • 6.4" inch
    Screen resolution
    • 640 x 960 px
    • 1080 x 2340 px
    Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
    • 8/16/32 GB
    • 512 MB RAM
    • 64GB 4GB RAM
    • 128GB 6GB RAM
    Memory card support
    • No
    • microSDXC (dedicated slot)
    Battery Capacity is not battery life. No endurance test is implied.
    • 1420 mAh
    • Non-removable Li-Po
    • 6000 mAh
    • Non-removable Li-Po
    Operating system OS
    • iOS 4
    • upgradable to iOS 7.1.2
    • Android 10.0; One UI 2
    Chipset
    • Apple A4 (45 nm)
    • Exynos 9611 (10nm)
    Headphone jack
    • Yes
    • Yes
    Display
    Display — specifications for iPhone 4, Galaxy M21.
    SpecificationiPhone 4Galaxy M21
    Touchscreen
    • capacitive touchscreen
    • capacitive touchscreen
    Display colors
    • 16M
    • 16M
    Screen area
    • 36.5 cm2
    • 100.5 cm2
    Screen format
    • 3:2 (height:width)
    • 19.5:9 (height:width)
    Screen to body ratio
    • 54.0%
    • 84.2%
    PPI /points per inch/
    • 330 PPI
    • 403 PPI
    Screen protection
    • Corning Gorilla Glass
    • oleophobic coating
    • Corning Gorilla Glass 3
    Camera and Video
    Camera and Video — specifications for iPhone 4, Galaxy M21.
    SpecificationiPhone 4Galaxy M21
    Rear camera, main
    • 5 MP
    • Single
    • 48 MP
    • Triple
    Camera specs
    • 5 MP
    • f/2.8
    • 1/3.2''
    • 1.75µm
    • AF
    • 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)
    Functions
    • LED flash
    • HDR
    • HDR
    Video
    • 480p@30fps
    • 1080p@30fps
    Front camera, selfie
    • 0.3 MP
    • Single
    • 20 MP
    • Single
    Specifications
    • VGA
    • Videocalling over Wi-Fi only
    • 20 MP
    • f/2.0
    • 26mm (wide)
    Performance

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

    Performance — specifications for iPhone 4, Galaxy M21.
    SpecificationiPhone 4Galaxy M21
    Processor CPU
    • 1.0 GHz Cortex-A8
    • Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
    Graphics processor GPU
    • PowerVR SGX535
    • Mali-G72 MP3
    Antutu 7 score *
    • 4152
    		 Unknown
    Antutu 8 score * Unknown
    • 182451
    General specs
    General specs — specifications for iPhone 4, Galaxy M21.
    SpecificationiPhone 4Galaxy M21
    Release date
    • 2010
    • June
    • 2020
    • March 18
    Colors
    • Black
    • White
    • Midnight Blue
    • Raven Black
    Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
    • 200 EUR
    • 160 EUR
    Battery life
    • Stand by time- Up to 300 h (2G) / Up to 300 h (3G) Talking time- Up to 14 h (2G) / Up to 7 h (3G) Music play - Up to 40 h
    		 Unknown
    Body build
    • Front/back glass & aluminum frame
    • Glass front (Gorilla Glass 3)
    • plastic back
    • plastic frame
    Communication and Connectivity
    Communication and Connectivity — specifications for iPhone 4, Galaxy M21.
    SpecificationiPhone 4Galaxy M21
    SIM card
    • Micro-SIM
    • Dual SIM (Nano-SIM
    • dual stand-by)
    Network
    • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
    • 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)
    Speed
    • HSPA 7.2/5.76 Mbps
    • HSPA
    • LTE-A
    GPRS
    • Class 10
    • Yes
    Edge
    • Class 10
    • Yes
    Wi-Fi
    • Wi-Fi 802.11 b/g/n
    • hotspot
    • Wi-Fi 802.11 a/b/g/n/ac
    • dual-band
    • Wi-Fi Direct
    • hotspot
    GPS
    • Yes
    • with A-GPS
    • Yes
    • with A-GPS
    • GLONASS
    • BDS
    USB
    • 2.0
    • 2.0
    • Type-C 1.0 reversible connector
    Bluetooth
    • 2.1
    • A2DP
    • 5.0
    • A2DP
    • LE
    Harmful irradiation
    • SAR - 1.17 W/kg (head) 1.11 W/kg (body) SAR EU - 0.93 W/kg (head) 0.74 W/kg (body)
    • SAR - 0.47 W/kg (head)
    Music and Audio
    Music and Audio — specifications for iPhone 4, Galaxy M21.
    SpecificationiPhone 4Galaxy M21
    Radio
    • No
    • FM radio
    • RDS
    • recording
    Others
    • Active noise cancellation with dedicated mic
    • 420 nits max brightness
    Other features
    Other features — specifications for iPhone 4, Galaxy M21.
    SpecificationiPhone 4Galaxy M21
    Dop
    • Sensors Accelerometer
    • gyro
    • proximity
    • compass - Scratch-resistant glass back panel
    • Sensors Fingerprint (rear-mounted)
    • accelerometer
    • gyro
    • proximity
    • compass - Fast charging 15W