HP Pre 3 vs Karbonn Smart A12 Star

Compare recorded specifications, size and practical differences.

+ Add a third phone

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: 26 g lighter

    Pre 3:
    156 g
    Smart A12 Star:
    130 g
  • Screen diagonal

    Pre 3: 0.42 in smaller diagonal

    Pre 3:
    3.58 in
    Smart A12 Star:
    4 in
  • Depth

    Smart A12 Star: 5.9 mm thinner

    Pre 3:
    16 mm
    Smart A12 Star:
    10.1 mm
  • Height

    Pre 3: 13.2 mm shorter

    Pre 3:
    111 mm
    Smart A12 Star:
    124.2 mm
  • Release year

    Pre 3:
    2011
    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. Pre 3

    Height:
    111 mm
    Width:
    64 mm
    Depth:
    16 mm +5.9 mm versus Smart A12 Star
  2. 2. Smart A12 Star

    Height:
    124.2 mm +13.2 mm versus Pre 3
    Width:
    64.2 mm
    Depth:
    10.1 mm

Weight

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

  1. 1. Pre 3

    156 g

    +26 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. Pre 3

    Screen diagonal:
    3.58 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    36.5 cm²
  2. 2. Smart A12 Star

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

Smart A12 Star has approximately 24.8% more rectangular screen area than Pre 3.

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.

Pre 3: Original memory entry

8 GB · 512 MB 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. Pre 3

NFC:
Unknown
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. Pre 3

    1230 mAh

  2. 2. Smart A12 Star

    1400 mAh

    +170 mAh versus Pre 3

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. Pre 32. Smart A12 Star

Everyday essentials
Everyday essentials — specifications for Pre 3, Smart A12 Star.
SpecificationPre 3Smart A12 Star
Dimensions (HxWxD)
  • 111 Х 64 Х 16 mm
  • 124.2 Х 64.2 Х 10.1 mm
Weight
  • 156 g
  • 130 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.58" inch
  • 4" 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.
  • 8 GB
  • 512 MB 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.
  • 1230 mAh
  • Removable Li-Ion
  • 1400 mAh
  • Li-Ion
Operating system OS
  • HP webOS 2.2
  • Android 4.4.2 (KitKat)
Chipset
  • Qualcomm MSM8255 Snapdragon S2
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Pre 3, Smart A12 Star.
SpecificationPre 3Smart A12 Star
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 36.5 cm2
  • 45.5 cm2
Screen format
  • 5:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 51.4%
  • 57.1%
PPI /points per inch/
  • 261 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for Pre 3, Smart A12 Star.
SpecificationPre 3Smart A12 Star
Rear camera, main
  • 5 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 5 MP
Functions
  • LED flash
  • LED flash
Video
  • 720p
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • VGA
  • VGA
Performance
Performance — specifications for Pre 3, Smart A12 Star.
SpecificationPre 3Smart A12 Star
Processor CPU
  • 1.4 GHz Scorpion
  • Dual-core 1.2 GHz
Graphics processor GPU
  • Adreno 205
Unknown
General specs
General specs — specifications for Pre 3, Smart A12 Star.
SpecificationPre 3Smart A12 Star
Release date
  • 2011
  • February
  • 2014
  • July
Colors
  • Black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 350 EUR
  • 50 EUR
Battery life
  • Stand by time- Up to 300 h Talking time- Up to 5 h
  • Stand by time- Up to 300 h
Communication and Connectivity
Communication and Connectivity — specifications for Pre 3, Smart A12 Star.
SpecificationPre 3Smart A12 Star
SIM card
  • Mini-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 7.2/5.76 Mbps
  • HSPA
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.1
  • A2DP
  • EDR
  • 2.0
Harmful irradiation Unknown
  • SAR EU - 0.79 W/kg (head)
Music and Audio
Music and Audio — specifications for Pre 3, Smart A12 Star.
SpecificationPre 3Smart A12 Star
Radio
  • No
  • FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for Pre 3, Smart A12 Star.
SpecificationPre 3Smart A12 Star
Dop
  • Sensors Accelerometer
  • proximity
  • compass - MP3/WAV/eAAC+ player -MP4/H.264 player -Organizer -Document viewer -Voice memo/dial -Predictive text input
  • Sensors Accelerometer
  • proximity