Celkon A66 vs O2 XDA mini S

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: 62 g lighter

    A66:
    98 g
    XDA mini S:
    160 g
  • Width

    XDA mini S: 9.2 mm narrower

    A66:
    67.2 mm
    XDA mini S:
    58 mm
  • Screen diagonal

    XDA mini S: 1.7 in smaller diagonal

    A66:
    4.5 in
    XDA mini S:
    2.8 in
  • Depth

    A66: 12 mm thinner

    A66:
    11 mm
    XDA mini S:
    23 mm
  • Height

    XDA mini S: 28 mm shorter

    A66:
    136 mm
    XDA mini S:
    108 mm
  • Release year

    A66:
    2014
    XDA mini S:
    2005

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 +28 mm versus XDA mini S
    Width:
    67.2 mm +9.2 mm versus XDA mini S
    Depth:
    11 mm
  2. 2. XDA mini S

    Height:
    108 mm
    Width:
    58 mm
    Depth:
    23 mm +12 mm versus A66

Weight

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

  1. 1. A66

    98 g

  2. 2. XDA mini S

    160 g

    +62 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. XDA mini S

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

A66 has approximately 129.9% more rectangular screen area than XDA mini S.

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.

A66: Original memory entry

4 GB · 512 MB RAM

XDA mini S: Original memory entry

64 MB RAM · 128 MB 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. A66

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

2. XDA mini S

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details miniSD · up to 2 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

    +800 mAh versus XDA mini S

  2. 2. XDA mini S

    1200 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. A662. XDA mini S

Everyday essentials
Everyday essentials — specifications for A66, XDA mini S.
SpecificationA66XDA mini S
Dimensions (HxWxD)
  • 136 Х 67.2 Х 11 mm
  • 108 Х 58 Х 23 mm
Weight
  • 98 g
  • 160 g
Technology
  • TFT
  • TFT
Screen size
  • 4.5" inch
  • 2.8" 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.
  • 4 GB
  • 512 MB RAM
  • 64 MB RAM
  • 128 MB ROM
Memory card support
  • microSD
  • up to 32 GB
  • miniSD
  • up to 2 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Ion
  • 1200 mAh
  • Removable Li-Po
Operating system OS
  • Android 4.1.2 (Jelly Bean)
  • Microsoft Windows Mobile 5.0 PocketPC
Chipset Unknown
  • TI OMAP 850
Headphone jack
  • Yes
  • No
Display
Display — specifications for A66, XDA mini S.
SpecificationA66XDA mini S
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Display colors Unknown
  • 65K
Screen area
  • 55.8 cm2
  • 24.3 cm2
Screen format
  • 16:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 61.1%
  • 38.8%
PPI /points per inch/
  • 218 PPI
  • 143 PPI
Camera and Video
Camera and Video — specifications for A66, XDA mini S.
SpecificationA66XDA mini S
Rear camera, main
  • 3.15 MP
  • Single
  • 1.3 MP
  • Single
Camera specs
  • 3.15 MP
  • 1.3 MP
Functions
  • LED flash
  • LED flash
Video
  • Yes
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Specifications
  • VGA
Unknown
Performance
Performance — specifications for A66, XDA mini S.
SpecificationA66XDA mini S
Processor CPU
  • Dual-core 1.2 GHz
  • 200 MHz ARM926EJ-S
General specs
General specs — specifications for A66, XDA mini S.
SpecificationA66XDA mini S
Release date
  • 2014
  • 2005
  • Q3
Colors
  • White
  • Black
  • Silver
Battery life
  • Stand by time- Up to 160 h Talking time- Up to 5 h
  • Stand by time- Up to 200 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for A66, XDA mini S.
SpecificationA66XDA mini S
SIM card
  • Dual SIM
  • Mini-SIM
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11b/g
GPS
  • Yes
  • No
USB
  • microUSB
  • miniUSB
Bluetooth
  • 2.0
  • 2.0
Harmful irradiation
  • SAR EU - 0.38 W/kg (head) 0.47 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A66, XDA mini S.
SpecificationA66XDA mini S
Radio
  • FM radio
  • No
Other features
Other features — specifications for A66, XDA mini S.
SpecificationA66XDA mini S
Dop
  • Sensors Accelerometer
  • proximity
  • Infrared port - Microsoft ActiveSync -Pocket Office -MP3/AAC player -Predictive text input - Produced by HTC. Functionally identical to Qtek 9100
  • i-mate K-JAM
  • T-Mobile MDA Vario