HTC One X 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.

  • Width

    Smart A12 Star: 5.7 mm narrower

    One X:
    69.9 mm
    Smart A12 Star:
    64.2 mm
  • Screen diagonal

    Smart A12 Star: 0.7 in smaller diagonal

    One X:
    4.7 in
    Smart A12 Star:
    4 in
  • Depth

    One X: 1.2 mm thinner

    One X:
    8.9 mm
    Smart A12 Star:
    10.1 mm
  • Height

    Smart A12 Star: 10.2 mm shorter

    One X:
    134.4 mm
    Smart A12 Star:
    124.2 mm
  • Release year

    One X:
    2012
    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. One X

    Height:
    134.4 mm +10.2 mm versus Smart A12 Star
    Width:
    69.9 mm +5.7 mm versus Smart A12 Star
    Depth:
    8.9 mm
  2. 2. Smart A12 Star

    Height:
    124.2 mm
    Width:
    64.2 mm
    Depth:
    10.1 mm +1.2 mm versus One X

Weight

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

  1. 1. One X

    130 g

  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. One X

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

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

One X has approximately 33.7% 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.

One X: Original memory entry

16/32 GB (26 GB user available) · 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. One X

NFC:
Yes
Headphone jack:
Yes
Memory card support:
No

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. One X

    1800 mAh

    +400 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. One X2. Smart A12 Star

Everyday essentials
Everyday essentials — specifications for One X, Smart A12 Star.
SpecificationOne XSmart A12 Star
Dimensions (HxWxD)
  • 134.4 Х 69.9 Х 8.9 mm
  • 124.2 Х 64.2 Х 10.1 mm
Weight
  • 130 g
  • 130 g
Technology
  • Super IPS LCD2
  • IPS LCD
Screen size
  • 4.7" inch
  • 4" inch
Screen resolution
  • 720 x 1280 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16/32 GB (26 GB user available)
  • 1 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • No
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1800 mAh
  • Non-removable Li-Po
  • 1400 mAh
  • Li-Ion
Operating system OS
  • Android 4.0 (Ice Cream Sandwich)
  • upgradable to 4.1.1 (Jelly Bean); Sense UI
  • Android 4.4.2 (KitKat)
Chipset
  • Nvidia Tegra 3
Unknown
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for One X, Smart A12 Star.
SpecificationOne XSmart A12 Star
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 60.9 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 64.8%
  • 57.1%
PPI /points per inch/
  • 312 PPI
  • 233 PPI
Screen protection
  • Corning Gorilla Glass
Unknown
Camera and Video
Camera and Video — specifications for One X, Smart A12 Star.
SpecificationOne XSmart A12 Star
Rear camera, main
  • 8 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 5 MP
Functions
  • LED flash
  • LED flash
Video
  • 720p
  • Yes
Front camera, selfie
  • 1.3 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 1.3 MP
  • VGA
Performance

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

Performance — specifications for One X, Smart A12 Star.
SpecificationOne XSmart A12 Star
Processor CPU
  • Quad-core 1.5 GHz
  • Dual-core 1.2 GHz
Graphics processor GPU
  • ULP GeForce
Unknown
Antutu 7 score *
  • 15483
Unknown
GeekBench 4 Single Core *
  • 423
Unknown
GeekBench 4 Multi-Core *
  • 981
Unknown
GeekBench 4 RenderScript *
  • 622
Unknown
General specs
General specs — specifications for One X, Smart A12 Star.
SpecificationOne XSmart A12 Star
Release date
  • 2012
  • February
  • 2014
  • July
Colors
  • Gray
  • White
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 170 EUR
  • 50 EUR
Battery life Unknown
  • Stand by time- Up to 300 h
Communication and Connectivity
Communication and Connectivity — specifications for One X, Smart A12 Star.
SpecificationOne XSmart A12 Star
SIM card
  • Micro-SIM
  • Dual SIM (Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n
  • Wi-Fi Direct
  • DLNA
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0 (MHL TV-out)
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • aptX
  • 2.0
Harmful irradiation
  • SAR - 0.68 W/kg (head) 0.70 W/kg (body)
  • SAR EU - 0.79 W/kg (head)
Music and Audio
Music and Audio — specifications for One X, Smart A12 Star.
SpecificationOne XSmart A12 Star
Radio
  • Stereo FM radio
  • RDS
  • FM radio
Others
  • Beats Audio -Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for One X, Smart A12 Star.
SpecificationOne XSmart A12 Star
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - Also known as HTC One XT for China
  • Sensors Accelerometer
  • proximity