Samsung Galaxy J7 Duo vs ZTE Open

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.

  • Width

    Open: 15.2 mm narrower

    Galaxy J7 Duo:
    77.2 mm
    Open:
    62 mm
  • Screen diagonal

    Open: 2 in smaller diagonal

    Galaxy J7 Duo:
    5.5 in
    Open:
    3.5 in
  • Chipset

    Galaxy J7 Duo:
    Exynos 7885 Octa (14 nm)
    Open:
    Qualcomm MSM7225A Snapdragon S1
  • Rear camera layout

    Galaxy J7 Duo:
    Dual
    Open:
    Single
  • Depth

    Galaxy J7 Duo: 4.3 mm thinner

    Galaxy J7 Duo:
    8.2 mm
    Open:
    12.5 mm
  • Height

    Open: 39.5 mm shorter

    Galaxy J7 Duo:
    153.5 mm
    Open:
    114 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. Galaxy J7 Duo

    Height:
    153.5 mm +39.5 mm versus Open
    Width:
    77.2 mm +15.2 mm versus Open
    Depth:
    8.2 mm
    Weight:
    174 g
  2. 2. Open

    Height:
    114 mm
    Width:
    62 mm
    Depth:
    12.5 mm +4.3 mm versus Galaxy J7 Duo
    Weight:
    Unknown

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. Galaxy J7 Duo

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. Open

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

Galaxy J7 Duo has approximately 128.6% more rectangular screen area than Open.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

Galaxy J7 Duo: Original memory entry

32 GB · 512GB 4GB

Open: Original memory entry

512 MB ROM · 256 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. Galaxy J7 Duo

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (dedicated slot)

2. Open

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 2 GB included

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. Galaxy J7 Duo

    3000 mAh

    +1800 mAh versus Open

  2. 2. Open

    1200 mAh

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. Galaxy J7 Duo2. Open

Everyday essentials
Everyday essentials — specifications for Galaxy J7 Duo, Open.
SpecificationGalaxy J7 DuoOpen
Dimensions (HxWxD)
  • 153.5 Х 77.2 Х 8.2 mm
  • 114 Х 62 Х 12.5 mm
Weight
  • 174 g
  • 0 g
Technology
  • Super AMOLED
  • TFT
Screen size
  • 5.5" inch
  • 3.5" inch
Screen resolution
  • 720 x 1280 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 512GB 4GB
  • 512 MB ROM
  • 256 MB RAM
Memory card support
  • microSD
  • up to 256 GB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 GB included
Battery Capacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Removable Li-Ion
  • 1200 mAh
  • Removable Li-Ion
Operating system OS
  • Android 8.0 (Oreo)
  • Firefox OS 1.0
Chipset
  • Exynos 7885 Octa (14 nm)
  • Qualcomm MSM7225A Snapdragon S1
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Galaxy J7 Duo, Open.
SpecificationGalaxy J7 DuoOpen
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 83.4 cm2
  • 36.5 cm2
Screen format
  • 16:9 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 70.4%
  • 51.6%
PPI /points per inch/
  • 267 PPI
  • 165 PPI
Camera and Video
Camera and Video — specifications for Galaxy J7 Duo, Open.
SpecificationGalaxy J7 DuoOpen
Rear camera, main
  • 13 MP
  • Dual
  • 3.15 MP
  • Single
Camera specs
  • 13 MP
  • f/1.9
  • AF -5 MP
  • depth sensor
  • 3.15 MP
Functions
  • LED flash
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 8 MP
  • Single
  • 0 MP,
Specifications
  • 8 MP
  • f/1.9
Unknown
Performance

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

Performance — specifications for Galaxy J7 Duo, Open.
SpecificationGalaxy J7 DuoOpen
Processor CPU
  • Octa-core (2x2.2 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53)
  • 1.0 GHz Cortex-A5
Graphics processor GPU
  • Mali-G71
  • Adreno 200
Antutu 7 score * Unknown
  • 1456
General specs
General specs — specifications for Galaxy J7 Duo, Open.
SpecificationGalaxy J7 DuoOpen
Release date
  • 2018
  • April
  • 2013
  • February
Colors
  • Black
  • Gold
  • Rose Gold
  • White
  • Blue
  • Orange
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 240 EUR
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy J7 Duo, Open.
SpecificationGalaxy J7 DuoOpen
SIM card
  • Single SIM (Micro-SIM)Dual SIM (Micro-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • 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)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA
  • LTE Cat4 150/50 Mbps
  • HSPA 7.2/5.76 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
USB
  • Yes
  • microUSB 2.0
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 2.1
  • A2DP
  • EDR
Music and Audio
Music and Audio — specifications for Galaxy J7 Duo, Open.
SpecificationGalaxy J7 DuoOpen
Radio
  • FM radio
  • Stereo FM radio
Other features
Other features — specifications for Galaxy J7 Duo, Open.
SpecificationGalaxy J7 DuoOpen
Dop
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • proximity - ANT+
  • Sensors Accelerometer
  • proximity - MP3/eAAC+/WAV/WMA player -MP4/H.264/WMV player -Document viewer -Photo viewer -Organizer -Voice memo/dial -Predictive text input