Karbonn A7 Star vs Plum Sync 4.0b

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

    Sync 4.0b: 2.5 mm narrower

    A7 Star:
    66 mm
    Sync 4.0b:
    63.5 mm
  • Screen diagonal

    Sync 4.0b: 0.5 in smaller diagonal

    A7 Star:
    4.5 in
    Sync 4.0b:
    4 in
  • Chipset

    A7 Star:
    Mediatek MT6517
    Sync 4.0b:
    Mediatek MT6572 (28 nm)
  • Height

    A7 Star: 11.5 mm shorter

    A7 Star:
    113 mm
    Sync 4.0b:
    124.5 mm
  • Release year

    A7 Star:
    2013
    Sync 4.0b:
    2015

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 +2.5 mm versus Sync 4.0b
    Depth:
    10.4 mm
    Weight:
    Unknown
  2. 2. Sync 4.0b

    Height:
    124.5 mm +11.5 mm versus A7 Star
    Width:
    63.5 mm
    Depth:
    10.4 mm
    Weight:
    84.8 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. Sync 4.0b

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²

A7 Star has approximately 22.6% more rectangular screen area than Sync 4.0b.

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.

A7 Star: Original memory entry

164 MB

Sync 4.0b: Original memory entry

512 MB · 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. A7 Star

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

2. Sync 4.0b

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

    +100 mAh versus Sync 4.0b

  2. 2. Sync 4.0b

    1300 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. A7 Star2. Sync 4.0b

Everyday essentials
Everyday essentials — specifications for A7 Star, Sync 4.0b.
SpecificationA7 StarSync 4.0b
Dimensions (HxWxD)
  • 113 Х 66 Х 10.4 mm
  • 124.5 Х 63.5 Х 10.4 mm
Weight
  • 0 g
  • 84.8 g
Technology Unknown
  • TFT
Screen size
  • 4.5" inch
  • 4" inch
Screen resolution
  • 480 x 854 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 164 MB
  • 512 MB
  • 256 MB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1400 mAh
  • Removable Li-Ion
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.0 (Ice Cream Sandwich)
  • Android 4.4 (KitKat)
Chipset
  • Mediatek MT6517
  • Mediatek MT6572 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A7 Star, Sync 4.0b.
SpecificationA7 StarSync 4.0b
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 74.8%
  • 57.6%
PPI /points per inch/
  • 218 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for A7 Star, Sync 4.0b.
SpecificationA7 StarSync 4.0b
Rear camera, main
  • 5 MP
  • Single
  • 1.3 MP
  • Single
Camera specs
  • 5 MP
  • 1.3 MP
Functions
  • LED flash
Unknown
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 1.3 MP
  • Single
Specifications Unknown
  • 1.3 MP
Performance
Performance — specifications for A7 Star, Sync 4.0b.
SpecificationA7 StarSync 4.0b
Processor CPU
  • Dual-core 1.0 GHz Cortex-A9
  • Dual-core 1.0 GHz Cortex-A7
Graphics processor GPU
  • PowerVR SGX531u
  • Mali-400
General specs
General specs — specifications for A7 Star, Sync 4.0b.
SpecificationA7 StarSync 4.0b
Release date
  • 2013
  • 2015
  • June
Colors
  • white/black
  • Black
  • White
  • Red
  • Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
Unknown
Battery life
  • Stand by time- Up to 135 h Talking time- Up to 5 h
  • Stand by time- Up to 180 h Talking time- Up to 2 h 30 min
Communication and Connectivity
Communication and Connectivity — specifications for A7 Star, Sync 4.0b.
SpecificationA7 StarSync 4.0b
SIM card
  • Dual SIM
  • Dual SIM
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • No
GPS
  • No
  • Yes
  • with A-GPS
USB
  • Proprietary
  • microUSB 2.0
Bluetooth
  • Yes
  • 2.0
Harmful irradiation
  • SAR EU - 0.99 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for A7 Star, Sync 4.0b.
SpecificationA7 StarSync 4.0b
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for A7 Star, Sync 4.0b.
SpecificationA7 StarSync 4.0b
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer Flashlight Also known as Plum Sync 4.0b X400