Karbonn A7 Star vs O2 XDA Atom Life

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.

  • Width

    XDA Atom Life: 8 mm narrower

    A7 Star:
    66 mm
    XDA Atom Life:
    58 mm
  • Screen diagonal

    XDA Atom Life: 1.8 in smaller diagonal

    A7 Star:
    4.5 in
    XDA Atom Life:
    2.7 in
  • Depth

    A7 Star: 7.6 mm thinner

    A7 Star:
    10.4 mm
    XDA Atom Life:
    18 mm
  • Height

    XDA Atom Life: 7 mm shorter

    A7 Star:
    113 mm
    XDA Atom Life:
    106 mm
  • Release year

    A7 Star:
    2013
    XDA Atom Life:
    2007

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. A7 Star

    Height:
    113 mm +7 mm versus XDA Atom Life
    Width:
    66 mm +8 mm versus XDA Atom Life
    Depth:
    10.4 mm
    Weight:
    Unknown
  2. 2. XDA Atom Life

    Height:
    106 mm
    Width:
    58 mm
    Depth:
    18 mm +7.6 mm versus A7 Star
    Weight:
    145 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. A7 Star

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²
  2. 2. XDA Atom Life

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

A7 Star has approximately 147.3% more rectangular screen area than XDA Atom Life.

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.

A7 Star: Original memory entry

164 MB

XDA Atom Life: Original memory entry

64 MB RAM · 1 GB ROM

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. A7 Star

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

2. XDA Atom Life

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details miniSD

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. A7 Star

    1400 mAh

  2. 2. XDA Atom Life

    1530 mAh

    +130 mAh versus A7 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. A7 Star2. XDA Atom Life

Everyday essentials
Everyday essentials — specifications for A7 Star, XDA Atom Life.
SpecificationA7 StarXDA Atom Life
Dimensions (HxWxD)
  • 113 Х 66 Х 10.4 mm
  • 106 Х 58 Х 18 mm
Weight
  • 0 g
  • 145 g
Technology Unknown
  • TFT
Screen size
  • 4.5" inch
  • 2.7" inch
Screen resolution
  • 480 x 854 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 164 MB
  • 64 MB RAM
  • 1 GB ROM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • miniSD
Battery Capacity is not battery life. No endurance test is implied.
  • 1400 mAh
  • Removable Li-Ion
  • 1530 mAh
  • Removable Li-Po
Operating system OS
  • Android 4.0 (Ice Cream Sandwich)
  • Microsoft Windows Mobile 5.0 PocketPC
Chipset
  • Mediatek MT6517
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for A7 Star, XDA Atom Life.
SpecificationA7 StarXDA Atom Life
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Screen area
  • 55.8 cm2
  • 22.6 cm2
Screen format
  • 16:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 74.8%
  • 36.7%
PPI /points per inch/
  • 218 PPI
  • 148 PPI
Camera and Video
Camera and Video — specifications for A7 Star, XDA Atom Life.
SpecificationA7 StarXDA Atom Life
Rear camera, main
  • 5 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 5 MP
  • 2 MP
Functions
  • LED flash
  • LED flash
Video
  • Yes
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 0.3 MP
  • Single
Specifications Unknown
  • VGA videocall camera
Performance
Performance — specifications for A7 Star, XDA Atom Life.
SpecificationA7 StarXDA Atom Life
Processor CPU
  • Dual-core 1.0 GHz Cortex-A9
  • Intel XScale PXA 270 620 MHz
Graphics processor GPU
  • PowerVR SGX531u
Unknown
General specs
General specs — specifications for A7 Star, XDA Atom Life.
SpecificationA7 StarXDA Atom Life
Release date
  • 2013
  • 2007
  • January
Colors
  • white/black
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 250 EUR
Battery life
  • Stand by time- Up to 135 h Talking time- Up to 5 h
  • Stand by time- Up to 200 h Talking time- Up to 4 h
Communication and Connectivity
Communication and Connectivity — specifications for A7 Star, XDA Atom Life.
SpecificationA7 StarXDA Atom Life
SIM card
  • Dual SIM
  • Mini-SIM
Network Unknown
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
Speed Unknown
  • HSPA
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11b/g
GPS
  • No
  • No
USB
  • Proprietary
  • miniUSB
Bluetooth
  • Yes
  • 1.2
Harmful irradiation
  • SAR EU - 0.99 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for A7 Star, XDA Atom Life.
SpecificationA7 StarXDA Atom Life
Radio
  • FM radio
  • Stereo FM radio
  • RDS
Others Unknown
  • Handwriting recognition
Other features
Other features — specifications for A7 Star, XDA Atom Life.
SpecificationA7 StarXDA Atom Life
Dop
  • Sensors Accelerometer
  • proximity
  • Infrared port - Pocket Office -Voice memo -MP3/AAC player