Infinix Smart3 Plus 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: 18 g lighter

    Smart3 Plus:
    148 g
    Smart A12 Star:
    130 g
  • Width

    Smart A12 Star: 11.8 mm narrower

    Smart3 Plus:
    76 mm
    Smart A12 Star:
    64.2 mm
  • Screen diagonal

    Smart A12 Star: 2.2 in smaller diagonal

    Smart3 Plus:
    6.2 in
    Smart A12 Star:
    4 in
  • Rear camera layout

    Smart3 Plus:
    Triple
    Smart A12 Star:
    Single
  • Depth

    Smart3 Plus: 2.3 mm thinner

    Smart3 Plus:
    7.8 mm
    Smart A12 Star:
    10.1 mm
  • Height

    Smart A12 Star: 32.8 mm shorter

    Smart3 Plus:
    157 mm
    Smart A12 Star:
    124.2 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. Smart3 Plus

    Height:
    157 mm +32.8 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 Smart3 Plus

Weight

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

  1. 1. Smart3 Plus

    148 g

    +18 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. Smart3 Plus

    Screen diagonal:
    6.2 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    95.9 cm²
  2. 2. Smart A12 Star

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

Smart3 Plus has approximately 110.7% 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.

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

Smart3 Plus: Original memory entry

32 GB · 2/3 GB RAM

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. Smart3 Plus

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD

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. Smart3 Plus

    3500 mAh

    +2100 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. Smart3 Plus2. Smart A12 Star

Everyday essentials
Everyday essentials — specifications for Smart3 Plus, Smart A12 Star.
SpecificationSmart3 PlusSmart A12 Star
Dimensions (HxWxD)
  • 157 Х 76 Х 7.8 mm
  • 124.2 Х 64.2 Х 10.1 mm
Weight
  • 148 g
  • 130 g
Technology
  • LTPS IPS LCD
  • IPS LCD
Screen size
  • 6.2" inch
  • 4" inch
Screen resolution
  • 720 x 1520 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
  • 2/3 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 3500 mAh
  • Non-removable Li-Po
  • 1400 mAh
  • Li-Ion
Operating system OS
  • Android 9.0 (Pie)
  • Android 4.4.2 (KitKat)
Chipset
  • Mediatek MT6761 Helio A22 (12 nm)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Smart3 Plus, Smart A12 Star.
SpecificationSmart3 PlusSmart A12 Star
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 97.4 cm2
  • 45.5 cm2
Screen format
  • 19:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 81.6%
  • 57.1%
PPI /points per inch/
  • 269 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for Smart3 Plus, Smart A12 Star.
SpecificationSmart3 PlusSmart A12 Star
Rear camera, main
  • 13 MP
  • Triple
  • 5 MP
  • Single
Camera specs
  • 13 MP
  • f/1.8
  • PDAF -2 MP -QVGA
  • 5 MP
Functions
  • Dual-LED flash
  • LED flash
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 8 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 8 MP
  • VGA
Performance

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

Performance — specifications for Smart3 Plus, Smart A12 Star.
SpecificationSmart3 PlusSmart A12 Star
Processor CPU
  • Quad-core 2.0 GHz Cortex-A53
  • Dual-core 1.2 GHz
Graphics processor GPU
  • PowerVR GE8320
Unknown
Antutu 7 score *
  • 56322
Unknown
General specs
General specs — specifications for Smart3 Plus, Smart A12 Star.
SpecificationSmart3 PlusSmart A12 Star
Release date
  • 2019
  • April
  • 2014
  • July
Colors
  • Midnight Black
  • Aqua Blue
  • Cosmic Purple
  • Bordeaux Red
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 7000 INR
  • 50 EUR
Battery life Unknown
  • Stand by time- Up to 300 h
Communication and Connectivity
Communication and Connectivity — specifications for Smart3 Plus, Smart A12 Star.
SpecificationSmart3 PlusSmart 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 -4G - LTE
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA 21.1/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • 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
  • 5.0
  • A2DP
  • LE
  • 2.0
Harmful irradiation Unknown
  • SAR EU - 0.79 W/kg (head)
Music and Audio
Music and Audio — specifications for Smart3 Plus, Smart A12 Star.
SpecificationSmart3 PlusSmart A12 Star
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for Smart3 Plus, Smart A12 Star.
SpecificationSmart3 PlusSmart A12 Star
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass
  • Sensors Accelerometer
  • proximity