1. Home
  2. Comparison

Apple iPhone 3G vs Samsung Galaxy M31

Compare recorded specifications, size and practical differences.

+ Add a third phone

    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.

    • Weight

      iPhone 3G: 58 g lighter

      iPhone 3G:
      133 g
      Galaxy M31:
      191 g

    • Width

      iPhone 3G: 13 mm narrower

      iPhone 3G:
      62.1 mm
      Galaxy M31:
      75.1 mm

    • Screen diagonal

      iPhone 3G: 2.9 in smaller diagonal

      iPhone 3G:
      3.5 in
      Galaxy M31:
      6.4 in

    • Rear camera layout

      iPhone 3G:
      Single
      Galaxy M31:
      Triple

    • Depth

      Galaxy M31: 3.4 mm thinner

      iPhone 3G:
      12.3 mm
      Galaxy M31:
      8.9 mm

    • Height

      iPhone 3G: 43.7 mm shorter

      iPhone 3G:
      115.5 mm
      Galaxy M31:
      159.2 mm

    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 3G

      Height:
      115.5 mm
      Width:
      62.1 mm
      Depth:
      12.3 mm +3.4 mm versus Galaxy M31

    2. 2. Galaxy M31

      Height:
      159.2 mm +43.7 mm versus iPhone 3G
      Width:
      75.1 mm +13 mm versus iPhone 3G
      Depth:
      8.9 mm

    Weight

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

    1. 1. iPhone 3G

      133 g

    2. 2. Galaxy M31

      191 g

      +58 g versus iPhone 3G

    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 3G

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

    2. 2. Galaxy M31

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

    Galaxy M31 has approximately 175.6% more rectangular screen area than iPhone 3G.

    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 3G, Galaxy M31, compared at the same storage capacity.
    StorageiPhone 3GGalaxy M31
    64 GB Unknown 6 GB RAM
    128 GB Unknown 6 GB RAM
    iPhone 3G: Original memory entry

    8/16 GB · 128 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 3G

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

    2. Galaxy M31

    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.

    At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

    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 3G2. Galaxy M31

    Everyday essentials
    Everyday essentials — specifications for iPhone 3G, Galaxy M31.
    SpecificationiPhone 3GGalaxy M31
    Dimensions (HxWxD)
    • 115.5 Х 62.1 Х 12.3 mm
    • 159.2 Х 75.1 Х 8.9 mm
    Weight
    • 133 g
    • 191 g
    Technology
    • TFT
    • Super AMOLED
    Screen size
    • 3.5" inch
    • 6.4" inch
    Screen resolution
    • 320 x 480 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 GB
    • 128 MB RAM
    • 64GB 6GB RAM
    • 128GB 6GB RAM
    Memory card support
    • No
    • microSDXC (dedicated slot)
    Battery Capacity is not battery life. No endurance test is implied.
    • 0 mAh,
    • 6000 mAh
    • Non-removable Li-Po
    Operating system OS
    • iOS
    • upgradable to iOS 4.2.1
    • Android 10.0; One UI 2.0
    Chipset Unknown
    • Exynos 9611 (10nm)
    NFC Unknown
    • Yes (market/region dependent)
    Headphone jack
    • Yes
    • Yes
    Display
    Display — specifications for iPhone 3G, Galaxy M31.
    SpecificationiPhone 3GGalaxy M31
    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
    • 50.9%
    • 84.1%
    PPI /points per inch/
    • 165 PPI
    • 403 PPI
    Screen protection
    • Corning Gorilla Glass
    • oleophobic coating
    • Corning Gorilla Glass 3
    Camera and Video
    Camera and Video — specifications for iPhone 3G, Galaxy M31.
    SpecificationiPhone 3GGalaxy M31
    Rear camera, main
    • 2 MP
    • Single
    • 64 MP
    • Triple
    Camera specs
    • 2 MP
    • 64 MP
    • f/1.8
    • 26mm (wide)
    • 1/1.72"
    • 0.8µm
    • PDAF -8 MP
    • f/2.2
    • 12mm (ultrawide)
    • 1/4.0"
    • 1.12µm -5 MP
    • f/2.4
    • 25mm (macro)
    • 1/5.0"
    • (depth)
    Functions Unknown
    • HDR
    Video
    • No
    • 2160p@30fps
    • 1080p@30fps
    Front camera, selfie
    • 0 MP,
    • 32 MP
    • Single
    Specifications Unknown
    • 32 MP
    • f/2.0
    • 26mm (wide)
    • 1/2.8''
    • 0.8µm
    Performance

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

    Performance — specifications for iPhone 3G, Galaxy M31.
    SpecificationiPhone 3GGalaxy M31
    Processor CPU
    • 412 MHz ARM 11
    • Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
    Graphics processor GPU
    • PowerVR MBX
    • Mali-G72 MP3
    Antutu 8 score * Unknown
    • 194554
    General specs
    General specs — specifications for iPhone 3G, Galaxy M31.
    SpecificationiPhone 3GGalaxy M31
    Release date
    • 2008
    • June
    • 2020
    • February 25
    Colors
    • Black(8/16 GB)
    • White (16 GB)
    • Ocean Blue
    • Space Black
    • Red
    Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
    • 90 EUR
    • 200 EUR
    Battery life
    • Stand by time- Up to 300 h Talking time- Up to 10 h Music play - Up to 24 h
    		 Unknown
    Body build Unknown
    • Glass front (Gorilla Glass 3)
    • plastic back
    • plastic frame
    Communication and Connectivity
    Communication and Connectivity — specifications for iPhone 3G, Galaxy M31.
    SpecificationiPhone 3GGalaxy M31
    SIM card
    • Mini-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 (unspecified)
    Speed
    • HSPA
    • HSPA
    • LTE-A
    GPRS
    • Yes
    • Yes
    Edge
    • Yes
    • Yes
    Wi-Fi
    • Wi-Fi 802.11b/g
    • 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
    • GALILEO
    • BDS
    USB
    • 2.0
    • 2.0
    • Type-C 1.0 reversible connector
    Bluetooth
    • 2.0
    • A2DP (headset support only)
    • 5.0
    • A2DP
    • LE
    Harmful irradiation
    • SAR - 0.52 W/kg (head) 1.29 W/kg (body) SAR EU - 0.56 W/kg (head) 0.23 W/kg (body)
    • SAR - 0.52 W/kg (head) 0.69 W/kg (body) SAR EU - 0.52 W/kg (head) 0.69 W/kg (body)
    Music and Audio
    Music and Audio — specifications for iPhone 3G, Galaxy M31.
    SpecificationiPhone 3GGalaxy M31
    Radio
    • No
    • FM radio
    • RDS
    • recording
    Other features
    Other features — specifications for iPhone 3G, Galaxy M31.
    SpecificationiPhone 3GGalaxy M31
    Dop
    • Sensors Accelerometer
    • proximity - Audio/video player -TV-out -Organizer -Document viewer -Photo viewer -Predictive text input
    • Sensors Fingerprint (rear-mounted)
    • accelerometer
    • gyro
    • proximity
    • compass - Fast battery charging 15W - Versions: SM-M315F/DS

    Similar comparisons

    Apple iPhone 12 Pro MaxSamsung Galaxy M31

    Apple iPhone 12 Pro Max vs Samsung Galaxy M31
    OnePlus 8TSamsung Galaxy M31

    OnePlus 8T vs Samsung Galaxy M31
    Oppo Reno5 5GSamsung Galaxy M31

    Oppo Reno5 5G vs Samsung Galaxy M31
    Samsung Galaxy S20 FE 5GSamsung Galaxy M31

    Samsung Galaxy S20 FE 5G vs Samsung Galaxy M31