Celkon Campus Prime 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.

  • Weight

    Campus Prime: 54.8 g lighter

    Campus Prime:
    119.2 g
    Galaxy J7 Duo:
    174 g
  • Width

    Campus Prime: 10.2 mm narrower

    Campus Prime:
    67 mm
    Galaxy J7 Duo:
    77.2 mm
  • Screen diagonal

    Campus Prime: 1 in smaller diagonal

    Campus Prime:
    4.5 in
    Galaxy J7 Duo:
    5.5 in
  • Chipset

    Campus Prime:
    Spreadtrum SC7715
    Galaxy J7 Duo:
    Exynos 7885 Octa (14 nm)
  • Rear camera layout

    Campus Prime:
    Single
    Galaxy J7 Duo:
    Dual
  • Depth

    Galaxy J7 Duo: 1.1 mm thinner

    Campus Prime:
    9.3 mm
    Galaxy J7 Duo:
    8.2 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. Campus Prime

    Height:
    132 mm
    Width:
    67 mm
    Depth:
    9.3 mm +1.1 mm versus Galaxy J7 Duo
  2. 2. Galaxy J7 Duo

    Height:
    153.5 mm +21.5 mm versus Campus Prime
    Width:
    77.2 mm +10.2 mm versus Campus Prime
    Depth:
    8.2 mm

Weight

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

  1. 1. Campus Prime

    119.2 g

  2. 2. Galaxy J7 Duo

    174 g

    +54.8 g versus Campus Prime

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. Campus Prime

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²
  2. 2. Galaxy J7 Duo

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

Galaxy J7 Duo has approximately 49.4% more rectangular screen area than Campus Prime.

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.

Campus Prime: Original memory entry

4 GB · 512 MB RAM

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. Campus Prime

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB

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. Campus Prime

    1600 mAh

  2. 2. Galaxy J7 Duo

    3000 mAh

    +1400 mAh versus Campus Prime

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. Campus Prime2. Galaxy J7 Duo

Everyday essentials
Everyday essentials — specifications for Campus Prime, Galaxy J7 Duo.
SpecificationCampus PrimeGalaxy J7 Duo
Dimensions (HxWxD)
  • 132 Х 67 Х 9.3 mm
  • 153.5 Х 77.2 Х 8.2 mm
Weight
  • 119.2 g
  • 174 g
Technology Unknown
  • Super AMOLED
Screen size
  • 4.5" inch
  • 5.5" inch
Screen resolution
  • 480 x 854 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 32 GB
  • 512GB 4GB
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1600 mAh
  • Removable Li-Ion
  • 3000 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.4.2 (KitKat)
  • Android 8.0 (Oreo)
Chipset
  • Spreadtrum SC7715
  • Exynos 7885 Octa (14 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Campus Prime, Galaxy J7 Duo.
SpecificationCampus PrimeGalaxy J7 Duo
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 83.4 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 63.1%
  • 70.4%
PPI /points per inch/
  • 218 PPI
  • 267 PPI
Camera and Video
Camera and Video — specifications for Campus Prime, Galaxy J7 Duo.
SpecificationCampus PrimeGalaxy J7 Duo
Rear camera, main
  • 3.15 MP
  • Single
  • 13 MP
  • Dual
Camera specs
  • 3.15 MP
  • 13 MP
  • f/1.9
  • AF -5 MP
  • depth sensor
Functions
  • LED flash
  • LED flash
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 1.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 1.3 MP
  • 8 MP
  • f/1.9
Performance
Performance — specifications for Campus Prime, Galaxy J7 Duo.
SpecificationCampus PrimeGalaxy J7 Duo
Processor CPU
  • 1.0 GHz
  • Octa-core (2x2.2 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53)
Graphics processor GPU Unknown
  • Mali-G71
General specs
General specs — specifications for Campus Prime, Galaxy J7 Duo.
SpecificationCampus PrimeGalaxy J7 Duo
Release date
  • 2015
  • August
  • 2018
  • April
Colors
  • White
  • Black
  • Gold
  • Silver
  • Brown
  • Blue
  • Black
  • Gold
  • Rose Gold
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 240 EUR
Communication and Connectivity
Communication and Connectivity — specifications for Campus Prime, Galaxy J7 Duo.
SpecificationCampus PrimeGalaxy J7 Duo
SIM card
  • Dual SIM
  • Single SIM (Micro-SIM)Dual SIM (Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • 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
  • HSPA
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • 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
  • A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • Yes
Bluetooth
  • 2.0
  • 4.2
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.35 W/kg (head) 0.85 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Campus Prime, Galaxy J7 Duo.
SpecificationCampus PrimeGalaxy J7 Duo
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for Campus Prime, Galaxy J7 Duo.
SpecificationCampus PrimeGalaxy J7 Duo
Dop
  • Sensors Accelerometer
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • proximity - ANT+