Karbonn A7 Star vs Samsung Galaxy J7 (2018)

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

    A7 Star: 10.2 mm narrower

    A7 Star:
    66 mm
    Galaxy J7 (2018):
    76.2 mm
  • Screen diagonal

    A7 Star: 1 in smaller diagonal

    A7 Star:
    4.5 in
    Galaxy J7 (2018):
    5.5 in
  • Depth

    Galaxy J7 (2018): 1.8 mm thinner

    A7 Star:
    10.4 mm
    Galaxy J7 (2018):
    8.6 mm
  • Height

    A7 Star: 40.2 mm shorter

    A7 Star:
    113 mm
    Galaxy J7 (2018):
    153.2 mm
  • Release year

    A7 Star:
    2013
    Galaxy J7 (2018):
    2018

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. A7 Star

    Height:
    113 mm
    Width:
    66 mm
    Depth:
    10.4 mm +1.8 mm versus Galaxy J7 (2018)
    Weight:
    Unknown
  2. 2. Galaxy J7 (2018)

    Height:
    153.2 mm +40.2 mm versus A7 Star
    Width:
    76.2 mm +10.2 mm versus A7 Star
    Depth:
    8.6 mm
    Weight:
    181 g

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. A7 Star

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²
  2. 2. Galaxy J7 (2018)

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

Galaxy J7 (2018) has approximately 49.4% more rectangular screen area than A7 Star.

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 A7 Star, Galaxy J7 (2018), compared at the same storage capacity.
StorageA7 StarGalaxy J7 (2018)
16 GB Unknown 2 GB RAM
32 GB Unknown 2 GB RAM
A7 Star: Original memory entry

164 MB

Practical features

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

1. A7 Star

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

2. Galaxy J7 (2018)

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 400 GB

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. A7 Star

    1400 mAh

  2. 2. Galaxy J7 (2018)

    3300 mAh

    +1900 mAh versus A7 Star

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. A7 Star2. Galaxy J7 (2018)

Everyday essentials
Everyday essentials — specifications for A7 Star, Galaxy J7 (2018).
SpecificationA7 StarGalaxy J7 (2018)
Dimensions (HxWxD)
  • 113 Х 66 Х 10.4 mm
  • 153.2 Х 76.2 Х 8.6 mm
Weight
  • 0 g
  • 181 g
Technology Unknown
  • TFT
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.
  • 164 MB
  • 16/32 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 400 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1400 mAh
  • Removable Li-Ion
  • 3300 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 4.0 (Ice Cream Sandwich)
  • Android 8.0 (Oreo)
Chipset
  • Mediatek MT6517
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A7 Star, Galaxy J7 (2018).
SpecificationA7 StarGalaxy J7 (2018)
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
  • 74.8%
  • 71.4%
PPI /points per inch/
  • 218 PPI
  • 267 PPI
Camera and Video
Camera and Video — specifications for A7 Star, Galaxy J7 (2018).
SpecificationA7 StarGalaxy J7 (2018)
Rear camera, main
  • 5 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 5 MP
  • 13 MP
  • AF
  • f/1.7
Functions
  • LED flash
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 13 MP
  • Single
Specifications Unknown
  • 13 MP
  • f/1.9
Performance
Performance — specifications for A7 Star, Galaxy J7 (2018).
SpecificationA7 StarGalaxy J7 (2018)
Processor CPU
  • Dual-core 1.0 GHz Cortex-A9
  • Octa-core 1.6 GHz
Graphics processor GPU
  • PowerVR SGX531u
Unknown
General specs
General specs — specifications for A7 Star, Galaxy J7 (2018).
SpecificationA7 StarGalaxy J7 (2018)
Release date
  • 2013
  • 2018
  • June
Colors
  • white/black
  • Black
  • Blue
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 200 EUR
Battery life
  • Stand by time- Up to 135 h Talking time- Up to 5 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for A7 Star, Galaxy J7 (2018).
SpecificationA7 StarGalaxy J7 (2018)
SIM card
  • Dual SIM
  • Nano-SIM
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE
Speed Unknown
  • HSPA
  • LTE
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
  • No
  • Yes
  • with A-GPS
  • GLONASS
USB
  • Proprietary
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • Yes
  • 4.2
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.99 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for A7 Star, Galaxy J7 (2018).
SpecificationA7 StarGalaxy J7 (2018)
Radio
  • FM radio
  • No
Other features
Other features — specifications for A7 Star, Galaxy J7 (2018).
SpecificationA7 StarGalaxy J7 (2018)
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - ANT+ - Also known as Samsung SM-J737
  • Galaxy J7 V (Verizon)
  • Galaxy J7 Star (T-Mobile)
  • Galaxy J7 Refine 2018 (Sprint
  • Virgin Mobile
  • Boost)