Karbonn Smart A12 Star vs Samsung Galaxy S2

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.

  • Display technology

    OLED versus LCD

    Smart A12 Star:
    LCD
    Galaxy S2:
    OLED
  • Weight

    Galaxy S2: 14 g lighter

    Smart A12 Star:
    130 g
    Galaxy S2:
    116 g
  • Width

    Smart A12 Star: 1.9 mm narrower

    Smart A12 Star:
    64.2 mm
    Galaxy S2:
    66.1 mm
  • Screen diagonal

    Smart A12 Star: 0.3 in smaller diagonal

    Smart A12 Star:
    4 in
    Galaxy S2:
    4.3 in
  • Depth

    Galaxy S2: 1.6 mm thinner

    Smart A12 Star:
    10.1 mm
    Galaxy S2:
    8.5 mm
  • Release year

    Smart A12 Star:
    2014
    Galaxy S2:
    2011

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. Smart A12 Star

    Height:
    124.2 mm
    Width:
    64.2 mm
    Depth:
    10.1 mm +1.6 mm versus Galaxy S2
  2. 2. Galaxy S2

    Height:
    125.3 mm
    Width:
    66.1 mm +1.9 mm versus Smart A12 Star
    Depth:
    8.5 mm

Weight

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

  1. 1. Smart A12 Star

    130 g

    +14 g versus Galaxy S2

  2. 2. Galaxy S2

    116 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. Smart A12 Star

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. Galaxy S2

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

Galaxy S2 has approximately 15.6% 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 Smart A12 Star, Galaxy S2, compared at the same storage capacity.
StorageSmart A12 StarGalaxy S2
16 GB Unknown 1 GB RAM
32 GB Unknown 1 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. Smart A12 Star

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

2. Galaxy S2

NFC:
See details Optional
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 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. Smart A12 Star

    1400 mAh

  2. 2. Galaxy S2

    1650 mAh

    +250 mAh versus Smart A12 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. Smart A12 Star2. Galaxy S2

Everyday essentials
Everyday essentials — specifications for Smart A12 Star, Galaxy S2.
SpecificationSmart A12 StarGalaxy S2
Dimensions (HxWxD)
  • 124.2 Х 64.2 Х 10.1 mm
  • 125.3 Х 66.1 Х 8.5 mm
Weight
  • 130 g
  • 116 g
Technology
  • IPS LCD
  • Super AMOLED Plus
Screen size
  • 4" inch
  • 4.3" inch
Screen resolution
  • 480 x 800 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 16/32 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1400 mAh
  • Li-Ion
  • 1650 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.4.2 (KitKat)
  • Android 2.3.4 (Gingerbread)
  • upgradable to 4.1 (Jelly Bean); TouchWiz UI 4
Chipset Unknown
  • Exynos 4210 Dual
NFC Unknown
  • Optional
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Smart A12 Star, Galaxy S2.
SpecificationSmart A12 StarGalaxy S2
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 45.5 cm2
  • 52.6 cm2
Screen format
  • 5:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 57.1%
  • 63.5%
PPI /points per inch/
  • 233 PPI
  • 217 PPI
Screen protection Unknown
  • Corning Gorilla Glass
Camera and Video
Camera and Video — specifications for Smart A12 Star, Galaxy S2.
SpecificationSmart A12 StarGalaxy S2
Rear camera, main
  • 5 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 5 MP
  • 8 MP
  • f/2.6
  • 1/3.2''
  • AF
Functions
  • LED flash
  • LED flash
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 2 MP
  • Single
Specifications
  • VGA
  • 2 MP
Performance

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

Performance — specifications for Smart A12 Star, Galaxy S2.
SpecificationSmart A12 StarGalaxy S2
Processor CPU
  • Dual-core 1.2 GHz
  • Dual-core 1.2 GHz Cortex-A9
Graphics processor GPU Unknown
  • Mali-400MP4
Antutu 7 score * Unknown
  • 9100
GeekBench 4 Single Core * Unknown
  • 415
GeekBench 4 Multi-Core * Unknown
  • 639
GeekBench 4 RenderScript * Unknown
  • 346
General specs
General specs — specifications for Smart A12 Star, Galaxy S2.
SpecificationSmart A12 StarGalaxy S2
Release date
  • 2014
  • July
  • 2011
  • February. Released 2011
  • April
Colors
  • Black
  • Black
  • White
  • Pink
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 50 EUR
  • 170 EUR
Battery life
  • Stand by time- Up to 300 h
  • Stand by time- Up to 710 h (2G) / Up to 610 h (3G) Talking time- Up to 18 h 20 min (2G) / Up to 8 h 40 min (3G)
Body build Unknown
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for Smart A12 Star, Galaxy S2.
SpecificationSmart A12 StarGalaxy S2
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA
  • HSPA 21.1/5.76 Mbps
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0 (MHL TV-out)
  • USB Host
Bluetooth
  • 2.0
  • 3.0
  • A2DP
  • aptX
Harmful irradiation
  • SAR EU - 0.79 W/kg (head)
  • SAR - 0.16 W/kg (head) 0.96 W/kg (body) SAR EU - 0.34 W/kg (head)
Music and Audio
Music and Audio — specifications for Smart A12 Star, Galaxy S2.
SpecificationSmart A12 StarGalaxy S2
Radio
  • FM radio
  • Stereo FM radio
  • RDS
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Smart A12 Star, Galaxy S2.
SpecificationSmart A12 StarGalaxy S2
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass