Apple iPhone 7 vs Samsung Galaxy J3 (2017)

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.

  • Width

    iPhone 7: 3.2 mm narrower

    iPhone 7:
    67.1 mm
    Galaxy J3 (2017):
    70.3 mm
  • Screen diagonal

    iPhone 7: 0.3 in smaller diagonal

    iPhone 7:
    4.7 in
    Galaxy J3 (2017):
    5 in
  • Chipset

    iPhone 7:
    Apple A10 Fusion (16 nm)
    Galaxy J3 (2017):
    Exynos 7570 Quad (14 nm)
  • Depth

    iPhone 7: 1.1 mm thinner

    iPhone 7:
    7.1 mm
    Galaxy J3 (2017):
    8.2 mm
  • Height

    iPhone 7: 4.9 mm shorter

    iPhone 7:
    138.3 mm
    Galaxy J3 (2017):
    143.2 mm
  • Release year

    iPhone 7:
    2016
    Galaxy J3 (2017):
    2017

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 7

    Height:
    138.3 mm
    Width:
    67.1 mm
    Depth:
    7.1 mm
  2. 2. Galaxy J3 (2017)

    Height:
    143.2 mm +4.9 mm versus iPhone 7
    Width:
    70.3 mm +3.2 mm versus iPhone 7
    Depth:
    8.2 mm +1.1 mm versus iPhone 7

Weight

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

  1. 1. iPhone 7

    138 g

  2. 2. Galaxy J3 (2017)

    142 g

    +4 g versus iPhone 7

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 7

    Screen diagonal:
    4.7 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    60.9 cm²
  2. 2. Galaxy J3 (2017)

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²

Galaxy J3 (2017) has approximately 13.2% more rectangular screen area than iPhone 7.

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 7, Galaxy J3 (2017), compared at the same storage capacity.
StorageiPhone 7Galaxy J3 (2017)
16 GB Not recorded 2 GB RAM
32 GB 2 GB RAM Not recorded
128 GB 2 GB RAM Not recorded
256 GB 2 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. iPhone 7

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

2. Galaxy J3 (2017)

NFC:
See details Yes (optional)
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (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 7

    1960 mAh

  2. 2. Galaxy J3 (2017)

    2400 mAh

    +440 mAh versus iPhone 7

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 72. Galaxy J3 (2017)

Everyday essentials
Everyday essentials — specifications for iPhone 7, Galaxy J3 (2017).
SpecificationiPhone 7Galaxy J3 (2017)
Dimensions (HxWxD)
  • 138.3 Х 67.1 Х 7.1 mm
  • 143.2 Х 70.3 Х 8.2 mm
Weight
  • 138 g
  • 142 g
Technology
  • LED-backlit IPS LCD
  • PLS
Screen size
  • 4.7" inch
  • 5" inch
Screen resolution
  • 750 x 1334 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32/128/256 GB
  • 2 GB RAM
  • 16 GB
  • 2 GB RAM
Memory card support
  • No
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1960 mAh
  • Non-removable Li-Ion
  • 2400 mAh
  • Non-removable Li-Ion
Operating system OS
  • iOS 10.0.1
  • upgradable to iOS 12.1.3
  • Android 7.0 (Nougat)
  • upgradable to Android 8.0 (Oreo)
Chipset
  • Apple A10 Fusion (16 nm)
  • Exynos 7570 Quad (14 nm)
NFC
  • Yes
  • Yes (optional)
Headphone jack
  • No
  • Yes
Display
Display — specifications for iPhone 7, Galaxy J3 (2017).
SpecificationiPhone 7Galaxy J3 (2017)
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 60.9 cm2
  • 68.9 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 65.6%
  • 68.5%
PPI /points per inch/
  • 326 PPI
  • 294 PPI
Screen protection
  • Ion-strengthened glass
  • oleophobic coating
Unknown
Camera and Video

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

Camera and Video — specifications for iPhone 7, Galaxy J3 (2017).
SpecificationiPhone 7Galaxy J3 (2017)
Rear camera, main
  • 12 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 12 MP
  • f/1.8
  • 28mm (wide)
  • 1/3''
  • OIS
  • PDAF
  • 13 MP
  • AF
  • f/1.9
Functions
  • Face detection
  • HDR
  • panorama
  • LED flash
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 7 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 7 MP
  • f/2.2
  • 32mm (standard)
  • 5 MP
  • f/2.2
DxOMark Main Score *
  • 85
Unknown
DxOMark Photo *
  • 85
Unknown
DxOMark Video *
  • 85
Unknown
Performance

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

Performance — specifications for iPhone 7, Galaxy J3 (2017).
SpecificationiPhone 7Galaxy J3 (2017)
Processor CPU
  • Quad-core 2.34 GHz (2x Hurricane + 2x Zephyr)
  • Quad-core 1.4 GHz Cortex-A53
Graphics processor GPU
  • PowerVR Series7XT Plus (six-core graphics)
  • Mali-T720 MP2
Antutu 7 score *
  • 178965
  • 37622
GeekBench 4 Single Core *
  • 3410
  • 606
GeekBench 4 Multi-Core *
  • 5745
  • 1751
GeekBench 4 RenderScript * Unknown
  • 1109
Antutu 8 score *
  • 200633
Unknown
GeekBench 4 Battery *
  • 1927
Unknown
General specs
General specs — specifications for iPhone 7, Galaxy J3 (2017).
SpecificationiPhone 7Galaxy J3 (2017)
Release date
  • 2016
  • September
  • 2017
  • June
Colors
  • Jet Black
  • Black
  • Silver
  • Gold
  • Rose Gold
  • Red
  • White
  • Black
  • Gold
  • Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 550 EUR
  • 110 EUR
Battery life
  • Talking time- Up to 14 h (3G) Music play - Up to 40 h
  • Talking time- Up to 15 h (3G) Music play - Up to 61 h
Body build
  • Front glass
  • aluminum body
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for iPhone 7, Galaxy J3 (2017).
SpecificationiPhone 7Galaxy J3 (2017)
SIM card
  • Nano-SIM
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - A1660
  • A1778 CDMA 800 / 1900 / 2100 - A1660 -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - A1660
  • A1778 CDMA2000 1xEV-DO & TD-SCDMA - A1660 -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)
  • 27(800)
  • 28(700)
  • 29(700)
  • 30(2300)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) - A1660
  • A1778
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 17(700)
  • 38(2600)
  • 40(2300)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat9 450/50 Mbps
  • EV-DO Rev.A 3.1 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
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • QZSS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • 2.0
  • proprietary reversible connector
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 4.2
  • A2DP
  • LE
Harmful irradiation
  • SAR - 1.19 W/kg (head) 1.19 W/kg (body) SAR EU - 1.38 W/kg (head) 1.34 W/kg (body)
  • SAR EU - 0.66 W/kg (head) 1.32 W/kg (body)
Music and Audio
Music and Audio — specifications for iPhone 7, Galaxy J3 (2017).
SpecificationiPhone 7Galaxy J3 (2017)
Radio
  • No
  • FM radio
Others
  • Wide color gamut -3D Touch display & home button
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for iPhone 7, Galaxy J3 (2017).
SpecificationiPhone 7Galaxy J3 (2017)
Dop
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • barometer - Siri natural language commands and dictation - IP67 dust/water resistant (up to 1m for 30 mins) -Apple Pay (Visa
  • MasterCard
  • AMEX certified)
  • Sensors Accelerometer
  • proximity - Versions: J330F/DS (Global Dual-SIM); J330G/DS (Malaysia) Also known as Samsung Galaxy J3 Pro (2017); Samsung Galaxy J3 (2017) Duos with dual-SIM card slots