Celkon A66 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.

  • Weight

    A66: 209 g lighter

    A66:
    98 g
    DuraForce XD:
    307 g
  • Width

    A66: 19.2 mm narrower

    A66:
    67.2 mm
    DuraForce XD:
    86.4 mm
  • Screen diagonal

    A66: 1.2 in smaller diagonal

    A66:
    4.5 in
    DuraForce XD:
    5.7 in
  • Depth

    A66: 2.9 mm thinner

    A66:
    11 mm
    DuraForce XD:
    13.9 mm
  • Height

    A66: 30.8 mm shorter

    A66:
    136 mm
    DuraForce XD:
    166.8 mm
  • Release year

    A66:
    2014
    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. A66

    Height:
    136 mm
    Width:
    67.2 mm
    Depth:
    11 mm
  2. 2. DuraForce XD

    Height:
    166.8 mm +30.8 mm versus A66
    Width:
    86.4 mm +19.2 mm versus A66
    Depth:
    13.9 mm +2.9 mm versus A66

Weight

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

  1. 1. A66

    98 g

  2. 2. DuraForce XD

    307 g

    +209 g versus A66

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. A66

    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 A66.

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 A66, DuraForce XD, compared at the same storage capacity.
StorageA66DuraForce XD
16 GB Unknown 2 GB RAM
A66: 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. A66

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

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. A66

    2000 mAh

  2. 2. DuraForce XD

    3700 mAh

    +1700 mAh versus A66

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. A662. DuraForce XD

Everyday essentials
Everyday essentials — specifications for A66, DuraForce XD.
SpecificationA66DuraForce XD
Dimensions (HxWxD)
  • 136 Х 67.2 Х 11 mm
  • 166.8 Х 86.4 Х 13.9 mm
Weight
  • 98 g
  • 307 g
Technology
  • TFT
  • 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.
  • 4 GB
  • 512 MB RAM
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Ion
  • 3700 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.1.2 (Jelly Bean)
  • Android 5.1 (Lollipop)
Chipset Unknown
  • Qualcomm MSM8928 Snapdragon 400 (28 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A66, DuraForce XD.
SpecificationA66DuraForce 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
  • 61.1%
  • 62.1%
PPI /points per inch/
  • 218 PPI
  • 258 PPI
Screen protection Unknown
  • Yes
Camera and Video
Camera and Video — specifications for A66, DuraForce XD.
SpecificationA66DuraForce XD
Rear camera, main
  • 3.15 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 3.15 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
  • VGA
  • 2 MP
Performance
Performance — specifications for A66, DuraForce XD.
SpecificationA66DuraForce XD
Processor CPU
  • Dual-core 1.2 GHz
  • Quad-core 1.6 GHz Cortex-A7
Graphics processor GPU Unknown
  • Adreno 305
General specs
General specs — specifications for A66, DuraForce XD.
SpecificationA66DuraForce XD
Release date
  • 2014
  • 2015
  • October
Colors
  • White
  • Black
  • Black
Battery life
  • Stand by time- Up to 160 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 A66, DuraForce XD.
SpecificationA66DuraForce 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
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac//r/k
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
USB
  • microUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • 4.1
  • A2DP
  • EDR
  • LE
Harmful irradiation
  • SAR EU - 0.38 W/kg (head) 0.47 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A66, DuraForce XD.
SpecificationA66DuraForce XD
Radio
  • FM radio
  • No
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for A66, DuraForce XD.
SpecificationA66DuraForce 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