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Acer DX900 vs Nokia C7 Astound

Compare recorded specifications, size and practical differences.

+ Add a third phone

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

    C7 Astound: 17 g lighter

    DX900:
    147 g
    C7 Astound:
    130 g
  • Width

    C7 Astound: 3.7 mm narrower

    DX900:
    60.5 mm
    C7 Astound:
    56.8 mm
  • Screen diagonal

    DX900: 0.7 in smaller diagonal

    DX900:
    2.8 in
    C7 Astound:
    3.5 in
  • Depth

    C7 Astound: 6.5 mm thinner

    DX900:
    17 mm
    C7 Astound:
    10.5 mm
  • Height

    DX900: 11.3 mm shorter

    DX900:
    106 mm
    C7 Astound:
    117.3 mm
  • Release year

    DX900:
    2009
    C7 Astound:
    2011

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. DX900

    Height:
    106 mm
    Width:
    60.5 mm +3.7 mm versus C7 Astound
    Depth:
    17 mm +6.5 mm versus C7 Astound
  2. 2. C7 Astound

    Height:
    117.3 mm +11.3 mm versus DX900
    Width:
    56.8 mm
    Depth:
    10.5 mm

Weight

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

  1. 1. DX900

    147 g

    +17 g versus C7 Astound

  2. 2. C7 Astound

    130 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. DX900

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. C7 Astound

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

C7 Astound has approximately 39.1% more rectangular screen area than DX900.

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.

DX900: Original memory entry

128 MB RAM · 256 MB ROM

C7 Astound: Original memory entry

8 GB · 256 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. DX900

NFC:
See details Super AMOLED
Headphone jack:
See details panorama
Memory card support:
See details microSD (dedicated slot)

2. C7 Astound

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

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. DX900

    1530 mAh

    +330 mAh versus C7 Astound

  2. 2. C7 Astound

    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. DX9002. C7 Astound

Everyday essentials
Everyday essentials — specifications for DX900, C7 Astound.
SpecificationDX900C7 Astound
Dimensions (HxWxD)
  • 106 Х 60.5 Х 17 mm
  • 117.3 Х 56.8 Х 10.5 mm
Weight
  • 147 g
  • 130 g
Technology
  • TFT
  • AMOLED
Screen size
  • 2.8" inch
  • 3.5" inch
Screen resolution
  • 480 x 640 px
  • 360 x 640 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
  • 8 GB
  • 256 MB RAM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1530 mAh
  • Removable Li-Po
  • 1200 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Symbian^3
  • upgradable to Nokia Belle OS
NFC
  • Super AMOLED
  • Yes
Headphone jack
  • panorama
  • Yes
Display
Display — specifications for DX900, C7 Astound.
SpecificationDX900C7 Astound
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 24.3 cm2
  • 33.8 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 37.9%
  • 50.7%
PPI /points per inch/
  • 286 PPI
  • 210 PPI
Screen protection Unknown
  • Corning Gorilla Glass
Camera and Video
Camera and Video — specifications for DX900, C7 Astound.
SpecificationDX900C7 Astound
Rear camera, main
  • 3.15 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 8 MP
Functions
  • Dual-LED flash
  • Dual-LED flash
Video
  • Yes
  • 720p@25fps
  • 720p@30fps (via SW update)
Front camera, selfie
  • 0.3 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • VGA videocall camera
  • VGA
Performance
Performance — specifications for DX900, C7 Astound.
SpecificationDX900C7 Astound
Processor CPU
  • 533 MHz Samsung S3C 6410
  • 680 MHz ARM 11
Graphics processor GPU Unknown
  • Broadcom BCM2727
General specs
General specs — specifications for DX900, C7 Astound.
SpecificationDX900C7 Astound
Release date
  • 2009
  • February
  • 2011
  • March
Colors
  • Black
  • Frosty metal
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 90 EUR
  • 220 EUR
Battery life
  • Stand by time- Up to 150 h Talking time- Up to10 h
  • Stand by time- Up to 555 h (2G) / Up to 656 h (3G) Talking time- Up to 9 h 30 min (2G) / Up to 5 h (3G) Music play - Up to 54 h
Communication and Connectivity
Communication and Connectivity — specifications for DX900, C7 Astound.
SpecificationDX900C7 Astound
SIM card
  • Dual SIM (Mini-SIM)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 GSM 900 / 1800 / 1900 - SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 10.2/2 Mbps
GPRS
  • Class 10
  • Class 33
Edge
  • Class 10
  • Class 33
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • SiRF Star III chipset
  • Yes
  • with A-GPS; Ovi Maps 3.0
USB
  • miniUSB
  • microUSB 2.0
  • USB Host
Bluetooth
  • microUSB 2.0
  • A2DP
  • 3.0
  • A2DP
Harmful irradiation Unknown
  • SAR - 1.03 W/kg (head) 0.83 W/kg (body) SAR EU - 0.73 W/kg (head)
Music and Audio
Music and Audio — specifications for DX900, C7 Astound.
SpecificationDX900C7 Astound
Radio
  • panorama
  • Stereo FM radio
  • RDS; FM trans
Others
  • Handwriting recognition
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for DX900, C7 Astound.
SpecificationDX900C7 Astound
Dop
  • Sensors Accelerometer Pocket Office -Voice memo -MP3 player Also known as Acer Tempo DX900
  • Acer Tempo X960
  • Sensors Accelerometer
  • proximity
  • compass - Web TV -TV-out -MP3/WMA/WAV/eAAC+ player -DivX/XviD/MP4/H.264/WMV player -Quickoffice document viewer (Word
  • Excel
  • PowerPoint
  • PDF) -Adobe Reader -Voice memo/dial/command -Predictive text input - For T-Mobile