Infinix Zero 4 vs Karbonn Smart A12 Star

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

    Smart A12 Star: 37.5 g lighter

    Zero 4:
    167.5 g
    Smart A12 Star:
    130 g
  • Width

    Smart A12 Star: 11.8 mm narrower

    Zero 4:
    76 mm
    Smart A12 Star:
    64.2 mm
  • Screen diagonal

    Smart A12 Star: 1.5 in smaller diagonal

    Zero 4:
    5.5 in
    Smart A12 Star:
    4 in
  • Depth

    Zero 4: 2.3 mm thinner

    Zero 4:
    7.8 mm
    Smart A12 Star:
    10.1 mm
  • Height

    Smart A12 Star: 27.3 mm shorter

    Zero 4:
    151.5 mm
    Smart A12 Star:
    124.2 mm
  • Release year

    Zero 4:
    2017
    Smart A12 Star:
    2014

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. Zero 4

    Height:
    151.5 mm +27.3 mm versus Smart A12 Star
    Width:
    76 mm +11.8 mm versus Smart A12 Star
    Depth:
    7.8 mm
  2. 2. Smart A12 Star

    Height:
    124.2 mm
    Width:
    64.2 mm
    Depth:
    10.1 mm +2.3 mm versus Zero 4

Weight

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

  1. 1. Zero 4

    167.5 g

    +37.5 g versus Smart A12 Star

  2. 2. Smart A12 Star

    130 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. Zero 4

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. Smart A12 Star

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

Zero 4 has approximately 83.1% more rectangular screen area than Smart A12 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 Zero 4, Smart A12 Star, compared at the same storage capacity.
StorageZero 4Smart A12 Star
32 GB 3 GB RAM Unknown
Smart A12 Star: Original memory entry

4 GB · 512 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. Zero 4

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 GB (dedicated slot)

2. Smart A12 Star

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. Zero 4

    3200 mAh

    +1800 mAh versus Smart A12 Star

  2. 2. Smart A12 Star

    1400 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. Zero 42. Smart A12 Star

Everyday essentials
Everyday essentials — specifications for Zero 4, Smart A12 Star.
SpecificationZero 4Smart A12 Star
Dimensions (HxWxD)
  • 151.5 Х 76 Х 7.8 mm
  • 124.2 Х 64.2 Х 10.1 mm
Weight
  • 167.5 g
  • 130 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 4" inch
Screen resolution
  • 1080 x 1920 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 3 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 128 GB (dedicated slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 3200 mAh
  • Non-removable Li-Ion
  • 1400 mAh
  • Li-Ion
Operating system OS
  • Android 6.0 (Marshmallow)
  • Android 4.4.2 (KitKat)
Chipset
  • Mediatek MT6753 (28 nm)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Zero 4, Smart A12 Star.
SpecificationZero 4Smart A12 Star
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 72.4%
  • 57.1%
PPI /points per inch/
  • 401 PPI
  • 233 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for Zero 4, Smart A12 Star.
SpecificationZero 4Smart A12 Star
Rear camera, main
  • 16 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 16 MP
  • f/2.0
  • OIS
  • Laser AF/ PDAF
  • 5 MP
Functions
  • LED flash
  • LED flash
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 8 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 8 MP
  • f/2.2
  • VGA
Performance

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

Performance — specifications for Zero 4, Smart A12 Star.
SpecificationZero 4Smart A12 Star
Processor CPU
  • Octa-core 1.3 GHz Cortex-A53
  • Dual-core 1.2 GHz
Graphics processor GPU
  • Mali-T720MP3
Unknown
Antutu 7 score *
  • 22135
Unknown
GeekBench 4 Single Core *
  • 632
Unknown
GeekBench 4 Multi-Core *
  • 2913
Unknown
GeekBench 5 Single Core *
  • 110
Unknown
GeekBench 5 Multi-Core *
  • 418
Unknown
General specs
General specs — specifications for Zero 4, Smart A12 Star.
SpecificationZero 4Smart A12 Star
Release date
  • 2017
  • March
  • 2014
  • July
Colors
  • Anthracite Grey
  • Champagne Gold
  • Barbie Pink
  • Filber Brown
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 50 EUR
Battery life Unknown
  • Stand by time- Up to 300 h
Communication and Connectivity
Communication and Connectivity — specifications for Zero 4, Smart A12 Star.
SpecificationZero 4Smart A12 Star
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM (Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 HSDPA 850 / 1700 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 38(2600)
  • 40(2300) LTE band 2(1900)
  • 4(1700/2100)
  • 28(700)
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • LE
  • 2.0
Harmful irradiation Unknown
  • SAR EU - 0.79 W/kg (head)
Music and Audio
Music and Audio — specifications for Zero 4, Smart A12 Star.
SpecificationZero 4Smart A12 Star
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for Zero 4, Smart A12 Star.
SpecificationZero 4Smart A12 Star
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Sensors Accelerometer
  • proximity