BlackBerry Curve 8520 vs Celkon A66

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: 8 g lighter

    Curve 8520:
    106 g
    A66:
    98 g
  • Width

    Curve 8520: 7.2 mm narrower

    Curve 8520:
    60 mm
    A66:
    67.2 mm
  • Screen diagonal

    Curve 8520: 2.04 in smaller diagonal

    Curve 8520:
    2.46 in
    A66:
    4.5 in
  • Depth

    A66: 2.9 mm thinner

    Curve 8520:
    13.9 mm
    A66:
    11 mm
  • Height

    Curve 8520: 27 mm shorter

    Curve 8520:
    109 mm
    A66:
    136 mm
  • Release year

    Curve 8520:
    2009
    A66:
    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. Curve 8520

    Height:
    109 mm
    Width:
    60 mm
    Depth:
    13.9 mm +2.9 mm versus A66
  2. 2. A66

    Height:
    136 mm +27 mm versus Curve 8520
    Width:
    67.2 mm +7.2 mm versus Curve 8520
    Depth:
    11 mm

Weight

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

  1. 1. Curve 8520

    106 g

    +8 g versus A66

  2. 2. A66

    98 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. Curve 8520

    Screen diagonal:
    2.46 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    18.7 cm²
  2. 2. A66

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

A66 has approximately 197.9% more rectangular screen area than Curve 8520.

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.

Curve 8520: Original memory entry

256 MB

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. Curve 8520

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

2. A66

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. Curve 8520

    1150 mAh

  2. 2. A66

    2000 mAh

    +850 mAh versus Curve 8520

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. Curve 85202. A66

Everyday essentials
Everyday essentials — specifications for Curve 8520, A66.
SpecificationCurve 8520A66
Dimensions (HxWxD)
  • 109 Х 60 Х 13.9 mm
  • 136 Х 67.2 Х 11 mm
Weight
  • 106 g
  • 98 g
Technology
  • TFT
  • TFT
Screen size
  • 2.46" inch
  • 4.5" inch
Screen resolution
  • 320 x 240 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 256 MB
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1150 mAh
  • Removable Li-Ion
  • 2000 mAh
  • Li-Ion
Operating system OS
  • BlackBerry OS 5.0
  • Android 4.1.2 (Jelly Bean)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Curve 8520, A66.
SpecificationCurve 8520A66
Touchscreen Unknown
  • capacitive touchscreen
Display colors
  • 65K
Unknown
Screen area
  • 18.7 cm2
  • 55.8 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 28.7%
  • 61.1%
PPI /points per inch/
  • 163 PPI
  • 218 PPI
Camera and Video
Camera and Video — specifications for Curve 8520, A66.
SpecificationCurve 8520A66
Rear camera, main
  • 2 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 2 MP
  • 3.15 MP
Functions Unknown
  • LED flash
Video
  • 320p
  • Yes
Front camera, selfie
  • 0 MP,
  • 0.3 MP
  • Single
Specifications Unknown
  • VGA
Performance
Performance — specifications for Curve 8520, A66.
SpecificationCurve 8520A66
Processor CPU
  • 512 MHz
  • Dual-core 1.2 GHz
General specs
General specs — specifications for Curve 8520, A66.
SpecificationCurve 8520A66
Release date
  • 2009
  • July
  • 2014
Colors
  • Black
  • White
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
Unknown
Battery life
  • Stand by time- Up to 408 h Talking time- Up to 4 h 30 min
  • Stand by time- Up to 160 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for Curve 8520, A66.
SpecificationCurve 8520A66
SIM card
  • Mini-SIM
  • Dual SIM
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11b/g
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • No
  • Yes
USB
  • microUSB
  • microUSB
Bluetooth
  • 2.0
  • A2DP
  • 2.0
Harmful irradiation
  • SAR - 1.22 W/kg (head) 0.83 W/kg (body) SAR EU - 1.02 W/kg (head) 0.78 W/kg (body)
  • SAR EU - 0.38 W/kg (head) 0.47 W/kg (body)
Music and Audio
Music and Audio — specifications for Curve 8520, A66.
SpecificationCurve 8520A66
Radio
  • No
  • FM radio
Others
  • Dedicated music keys
Unknown
Other features
Other features — specifications for Curve 8520, A66.
SpecificationCurve 8520A66
Dop
  • MP3/eAAC+/WMA/WAV player -MP4/H.264/WMV player -Organizer -Voice memo/dial -Predictive text input Optical trackpad
  • Sensors Accelerometer
  • proximity