Acer F900 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: 52 g lighter

    F900:
    150 g
    A66:
    98 g
  • Width

    F900: 3.7 mm narrower

    F900:
    63.5 mm
    A66:
    67.2 mm
  • Screen diagonal

    F900: 0.7 in smaller diagonal

    F900:
    3.8 in
    A66:
    4.5 in
  • Depth

    A66: 4.8 mm thinner

    F900:
    15.8 mm
    A66:
    11 mm
  • Height

    F900: 18.5 mm shorter

    F900:
    117.5 mm
    A66:
    136 mm
  • Release year

    F900:
    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. F900

    Height:
    117.5 mm
    Width:
    63.5 mm
    Depth:
    15.8 mm +4.8 mm versus A66
  2. 2. A66

    Height:
    136 mm +18.5 mm versus F900
    Width:
    67.2 mm +3.7 mm versus F900
    Depth:
    11 mm

Weight

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

  1. 1. F900

    150 g

    +52 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. F900

    Screen diagonal:
    3.8 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    41.1 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 35.8% more rectangular screen area than F900.

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.

F900: Original memory entry

128 MB RAM · 256 MB ROM

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. F900

NFC:
See details Super AMOLED
Headphone jack:
See details panorama
Memory card support:
See details microSD (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. F900

    1530 mAh

  2. 2. A66

    2000 mAh

    +470 mAh versus F900

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. F9002. A66

Everyday essentials
Everyday essentials — specifications for F900, A66.
SpecificationF900A66
Dimensions (HxWxD)
  • 117.5 Х 63.5 Х 15.8 mm
  • 136 Х 67.2 Х 11 mm
Weight
  • 150 g
  • 98 g
Technology
  • TFT
  • TFT
Screen size
  • 3.8" inch
  • 4.5" inch
Screen resolution
  • 480 x 800 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 MB RAM
  • 256 MB ROM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1530 mAh
  • Removable Li-Ion
  • 2000 mAh
  • Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Android 4.1.2 (Jelly Bean)
NFC
  • Super AMOLED
Unknown
Headphone jack
  • panorama
  • Yes
Display
Display — specifications for F900, A66.
SpecificationF900A66
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
Unknown
Screen area
  • 41.1 cm2
  • 55.8 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 55.1%
  • 61.1%
PPI /points per inch/
  • 246 PPI
  • 218 PPI
Camera and Video
Camera and Video — specifications for F900, A66.
SpecificationF900A66
Rear camera, main
  • 3.15 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 3.15 MP
Functions
  • Dual-LED flash
  • LED flash
Video
  • 480p@30fps
  • Yes
Front camera, selfie
  • 0 MP,
  • 0.3 MP
  • Single
Specifications
  • Super AMOLED
  • VGA
Performance
Performance — specifications for F900, A66.
SpecificationF900A66
Processor CPU
  • 533 MHz Samsung S3C 6410
  • Dual-core 1.2 GHz
General specs
General specs — specifications for F900, A66.
SpecificationF900A66
Release date
  • 2009
  • February
  • 2014
Colors
  • Black
  • White
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 210 EUR
Unknown
Battery life
  • Stand by time- Up to 150 h Talking time- Up to 4 h
  • Stand by time- Up to 160 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for F900, A66.
SpecificationF900A66
SIM card
  • Single SIM (Mini-SIM)Dual SIM (Mini-SIM/Micro-SIM
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE
Unknown
Speed
  • HSPA 7.2/2 Mbps
Unknown
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • SiRF Star III chipset
  • Yes
USB
  • miniUSB 2.0
  • microUSB
Bluetooth
  • microUSB 2.0
  • A2DP
  • 2.0
Harmful irradiation
  • SAR - 0.59 W/kg (head) 0.82 W/kg (body)
  • SAR EU - 0.38 W/kg (head) 0.47 W/kg (body)
Music and Audio
Music and Audio — specifications for F900, A66.
SpecificationF900A66
Radio
  • Stereo FM radio
  • RDS
  • FM radio
Others
  • Handwriting recognition
Unknown
Other features
Other features — specifications for F900, A66.
SpecificationF900A66
Dop
  • Sensors Accelerometer MP3/WMA/WAV/AAC+ player -MP4/H.264/WMV player -Pocket Office -Organizer -Voice memo/dial -Predictive text input
  • Sensors Accelerometer
  • proximity