Allview E4 vs Samsung Galaxy J7 Duo

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

    E4:
    LCD
    Galaxy J7 Duo:
    OLED
  • Weight

    E4: 44 g lighter

    E4:
    130 g
    Galaxy J7 Duo:
    174 g
  • Width

    E4: 7 mm narrower

    E4:
    70.2 mm
    Galaxy J7 Duo:
    77.2 mm
  • Chipset

    E4:
    Mediatek MT6753 (28 nm)
    Galaxy J7 Duo:
    Exynos 7885 Octa (14 nm)
  • Rear camera layout

    E4:
    Single
    Galaxy J7 Duo:
    Dual
  • Height

    E4: 12.8 mm shorter

    E4:
    140.7 mm
    Galaxy J7 Duo:
    153.5 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. E4

    Height:
    140.7 mm
    Width:
    70.2 mm
    Depth:
    8.6 mm
  2. 2. Galaxy J7 Duo

    Height:
    153.5 mm +12.8 mm versus E4
    Width:
    77.2 mm +7 mm versus E4
    Depth:
    8.2 mm

Weight

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

  1. 1. E4

    130 g

  2. 2. Galaxy J7 Duo

    174 g

    +44 g versus E4

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. E4

    E4: Screen geometry unavailable or conflicting.

  2. 2. Galaxy J7 Duo

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 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 E4, Galaxy J7 Duo, compared at the same storage capacity.
StorageE4Galaxy J7 Duo
16 GB 2 GB RAM Unknown
Galaxy J7 Duo: Original memory entry

32 GB · 512GB 4GB

Practical features

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

1. E4

NFC:
See details Super AMOLED
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot)

2. Galaxy J7 Duo

NFC:
Unknown
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. E4

    2100 mAh

  2. 2. Galaxy J7 Duo

    3000 mAh

    +900 mAh versus E4

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. E42. Galaxy J7 Duo

Everyday essentials
Everyday essentials — specifications for E4, Galaxy J7 Duo.
SpecificationE4Galaxy J7 Duo
Dimensions (HxWxD)
  • 140.7 Х 70.2 Х 8.6 mm
  • 153.5 Х 77.2 Х 8.2 mm
Weight
  • 130 g
  • 174 g
Technology
  • IPS LCD
  • Super AMOLED
Screen size
  • 5.5" inch
  • 5.5" inch
Screen resolution
  • 720 x 1280 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16 GB
  • 2 GB RAM
  • 32 GB
  • 512GB 4GB
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2100 mAh
  • Removable Li-Po
  • 3000 mAh
  • Removable Li-Ion
Operating system OS
  • Android 5.1 (Lollipop)
  • Android 8.0 (Oreo)
Chipset
  • Mediatek MT6753 (28 nm)
  • Exynos 7885 Octa (14 nm)
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for E4, Galaxy J7 Duo.
SpecificationE4Galaxy J7 Duo
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • Super AMOLED
  • 16M
Screen area
  • 68.9 cm2
  • 83.4 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 143.5 Х 69.8 Х 8 mm
  • 70.4%
PPI /points per inch/
  • 294 PPI
  • 267 PPI
Camera and Video
Camera and Video — specifications for E4, Galaxy J7 Duo.
SpecificationE4Galaxy J7 Duo
Rear camera, main
  • 13 MP
  • Single
  • 13 MP
  • Dual
Camera specs
  • 13 MP
  • AF
  • 13 MP
  • f/1.9
  • AF -5 MP
  • depth sensor
Functions
  • Dual-LED flash
  • LED flash
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 5 MP
  • 8 MP
  • f/1.9
Performance

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

Performance — specifications for E4, Galaxy J7 Duo.
SpecificationE4Galaxy J7 Duo
Processor CPU
  • Octa-core 1.3 GHz Cortex-A53
  • Octa-core (2x2.2 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53)
Graphics processor GPU
  • Mali-T720MP3
  • Mali-G71
Antutu 7 score *
  • 23156
Unknown
General specs
General specs — specifications for E4, Galaxy J7 Duo.
SpecificationE4Galaxy J7 Duo
Release date
  • 2015
  • September
  • 2018
  • April
Colors
  • Black
  • White
  • Black
  • Gold
  • Rose Gold
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 240 EUR
  • 240 EUR
Battery life
  • Stand by time- Up to 210 h Talking time- Up to 9 h 30 min
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for E4, Galaxy J7 Duo.
SpecificationE4Galaxy J7 Duo
SIM card
  • Single SIM (Micro-SIM)Dual SIM (Micro-SIM
  • dual stand-by)
  • Single SIM (Micro-SIM)Dual SIM (Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE band 2(1900)
  • 3(1800)
  • 20(800)
  • 38(2600)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -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 21.1/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA
  • LTE Cat4 150/50 Mbps
GPRS
  • Class 12
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • Yes
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 4.2
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 1.23 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for E4, Galaxy J7 Duo.
SpecificationE4Galaxy J7 Duo
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for E4, Galaxy J7 Duo.
SpecificationE4Galaxy J7 Duo
Dop
  • Sensors Accelerometer
  • proximity
  • compass
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • proximity - ANT+