Karbonn A7 Star vs Kyocera DuraForce XD

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

    A7 Star: 20.4 mm narrower

    A7 Star:
    66 mm
    DuraForce XD:
    86.4 mm
  • Screen diagonal

    A7 Star: 1.2 in smaller diagonal

    A7 Star:
    4.5 in
    DuraForce XD:
    5.7 in
  • Chipset

    A7 Star:
    Mediatek MT6517
    DuraForce XD:
    Qualcomm MSM8928 Snapdragon 400 (28 nm)
  • Depth

    A7 Star: 3.5 mm thinner

    A7 Star:
    10.4 mm
    DuraForce XD:
    13.9 mm
  • Height

    A7 Star: 53.8 mm shorter

    A7 Star:
    113 mm
    DuraForce XD:
    166.8 mm
  • Release year

    A7 Star:
    2013
    DuraForce XD:
    2015

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
    Width:
    66 mm
    Depth:
    10.4 mm
    Weight:
    Unknown
  2. 2. DuraForce XD

    Height:
    166.8 mm +53.8 mm versus A7 Star
    Width:
    86.4 mm +20.4 mm versus A7 Star
    Depth:
    13.9 mm +3.5 mm versus A7 Star
    Weight:
    307 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. DuraForce XD

    Screen diagonal:
    5.7 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    89.6 cm²

DuraForce XD has approximately 60.4% more rectangular screen area than A7 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 A7 Star, DuraForce XD, compared at the same storage capacity.
StorageA7 StarDuraForce XD
16 GB Unknown 2 GB RAM
A7 Star: Original memory entry

164 MB

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. DuraForce XD

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 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. A7 Star

    1400 mAh

  2. 2. DuraForce XD

    3700 mAh

    +2300 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. DuraForce XD

Everyday essentials
Everyday essentials — specifications for A7 Star, DuraForce XD.
SpecificationA7 StarDuraForce XD
Dimensions (HxWxD)
  • 113 Х 66 Х 10.4 mm
  • 166.8 Х 86.4 Х 13.9 mm
Weight
  • 0 g
  • 307 g
Technology Unknown
  • IPS LCD
Screen size
  • 4.5" inch
  • 5.7" inch
Screen resolution
  • 480 x 854 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 164 MB
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1400 mAh
  • Removable Li-Ion
  • 3700 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.0 (Ice Cream Sandwich)
  • Android 5.1 (Lollipop)
Chipset
  • Mediatek MT6517
  • Qualcomm MSM8928 Snapdragon 400 (28 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A7 Star, DuraForce XD.
SpecificationA7 StarDuraForce XD
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 89.6 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 74.8%
  • 62.1%
PPI /points per inch/
  • 218 PPI
  • 258 PPI
Screen protection Unknown
  • Yes
Camera and Video
Camera and Video — specifications for A7 Star, DuraForce XD.
SpecificationA7 StarDuraForce XD
Rear camera, main
  • 5 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 5 MP
  • 8 MP
  • AF
Functions
  • LED flash
  • LED flash
  • HDR
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 2 MP
  • Single
Specifications Unknown
  • 2 MP
Performance
Performance — specifications for A7 Star, DuraForce XD.
SpecificationA7 StarDuraForce XD
Processor CPU
  • Dual-core 1.0 GHz Cortex-A9
  • Quad-core 1.6 GHz Cortex-A7
Graphics processor GPU
  • PowerVR SGX531u
  • Adreno 305
General specs
General specs — specifications for A7 Star, DuraForce XD.
SpecificationA7 StarDuraForce XD
Release date
  • 2013
  • 2015
  • October
Colors
  • white/black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
Unknown
Battery life
  • Stand by time- Up to 135 h Talking time- Up to 5 h
  • Stand by time- Up to 816 h (3G) Talking time- Up to 23 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A7 Star, DuraForce XD.
SpecificationA7 StarDuraForce XD
SIM card
  • Dual SIM
  • Nano-SIM
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 - AT&T
  • T-Mobile -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 17(700)
  • 20(800)
  • 29(700) - AT&T LTE band 1(2100)
  • 12(700)
  • 29(700) - T-Mobile
Speed Unknown
  • HSPA
  • LTE
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/b/g/n/ac//r/k
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
USB
  • Proprietary
  • microUSB 2.0
Bluetooth
  • Yes
  • 4.1
  • A2DP
  • EDR
  • LE
Harmful irradiation
  • SAR EU - 0.99 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for A7 Star, DuraForce XD.
SpecificationA7 StarDuraForce XD
Radio
  • FM radio
  • No
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for A7 Star, DuraForce XD.
SpecificationA7 StarDuraForce XD
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • barometer - Fast battery charging - IP68 dust/water proof (up to 1.5m for 30 mins) -MIL-STD-810G compliant