Nokia C7 Astound vs Samsung DoubleTime I857

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

    C7 Astound: 18 g lighter

    C7 Astound:
    130 g
    DoubleTime I857:
    148 g
  • Width

    C7 Astound: 5.2 mm narrower

    C7 Astound:
    56.8 mm
    DoubleTime I857:
    62 mm
  • Screen diagonal

    DoubleTime I857: 0.3 in smaller diagonal

    C7 Astound:
    3.5 in
    DoubleTime I857:
    3.2 in
  • Depth

    C7 Astound: 4.5 mm thinner

    C7 Astound:
    10.5 mm
    DoubleTime I857:
    15 mm
  • Height

    DoubleTime I857: 4.3 mm shorter

    C7 Astound:
    117.3 mm
    DoubleTime I857:
    113 mm

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. C7 Astound

    Height:
    117.3 mm +4.3 mm versus DoubleTime I857
    Width:
    56.8 mm
    Depth:
    10.5 mm
  2. 2. DoubleTime I857

    Height:
    113 mm
    Width:
    62 mm +5.2 mm versus C7 Astound
    Depth:
    15 mm +4.5 mm versus C7 Astound

Weight

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

  1. 1. C7 Astound

    130 g

  2. 2. DoubleTime I857

    148 g

    +18 g versus C7 Astound

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. C7 Astound

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    33.8 cm²
  2. 2. DoubleTime I857

    Screen diagonal:
    3.2 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    30.5 cm²

C7 Astound has approximately 10.8% more rectangular screen area than DoubleTime I857.

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.

C7 Astound: Original memory entry

8 GB · 256 MB RAM

DoubleTime I857: Original memory entry

260 MB · 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. C7 Astound

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

2. DoubleTime I857

NFC:
Unknown
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. C7 Astound

    1200 mAh

  2. 2. DoubleTime I857

    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. C7 Astound2. DoubleTime I857

Everyday essentials
Everyday essentials — specifications for C7 Astound, DoubleTime I857.
SpecificationC7 AstoundDoubleTime I857
Dimensions (HxWxD)
  • 117.3 Х 56.8 Х 10.5 mm
  • 113 Х 62 Х 15 mm
Weight
  • 130 g
  • 148 g
Technology
  • AMOLED
  • TFT
Screen size
  • 3.5" inch
  • 3.2" inch
Screen resolution
  • 360 x 640 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 256 MB RAM
  • 260 MB
  • 256 MB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Ion
  • 1200 mAh
  • Removable Li-Ion
Operating system OS
  • Symbian^3
  • upgradable to Nokia Belle OS
  • Android 2.2 (Froyo)
Chipset Unknown
  • Qualcomm MSM7230
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for C7 Astound, DoubleTime I857.
SpecificationC7 AstoundDoubleTime I857
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 33.8 cm2
  • 30.5 cm2
Screen format
  • 16:9 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 50.7%
  • 43.5%
PPI /points per inch/
  • 210 PPI
  • 180 PPI
Screen protection
  • Corning Gorilla Glass
Unknown
Camera and Video
Camera and Video — specifications for C7 Astound, DoubleTime I857.
SpecificationC7 AstoundDoubleTime I857
Rear camera, main
  • 8 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 8 MP
  • 3.15 MP
  • AF
Functions
  • Dual-LED flash
Unknown
Video
  • 720p@25fps
  • 720p@30fps (via SW update)
  • 320p
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Specifications
  • VGA
Unknown
Performance
Performance — specifications for C7 Astound, DoubleTime I857.
SpecificationC7 AstoundDoubleTime I857
Processor CPU
  • 680 MHz ARM 11
  • 800 MHz Scorpion
Graphics processor GPU
  • Broadcom BCM2727
  • Adreno 205
General specs
General specs — specifications for C7 Astound, DoubleTime I857.
SpecificationC7 AstoundDoubleTime I857
Release date
  • 2011
  • March
  • 2011
  • October
Colors
  • Frosty metal
  • Black/White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 220 EUR
  • 70 EUR
Battery life
  • 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
  • Stand by time- Up to 250 h Talking time- Up to 6 h
Communication and Connectivity
Communication and Connectivity — specifications for C7 Astound, DoubleTime I857.
SpecificationC7 AstoundDoubleTime I857
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 10.2/2 Mbps
  • HSPA 7.2/2 Mbps
GPRS
  • Class 33
  • Yes
Edge
  • Class 33
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • No
GPS
  • Yes
  • with A-GPS; Ovi Maps 3.0
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • USB Host
  • microUSB 2.0
Bluetooth
  • 3.0
  • A2DP
  • 3.0
  • A2DP
Harmful irradiation
  • SAR - 1.03 W/kg (head) 0.83 W/kg (body) SAR EU - 0.73 W/kg (head)
  • SAR - 0.54 W/kg (head) 0.97 W/kg (body)
Music and Audio
Music and Audio — specifications for C7 Astound, DoubleTime I857.
SpecificationC7 AstoundDoubleTime I857
Radio
  • Stereo FM radio
  • RDS; FM trans
  • No
Others
  • Active noise cancellation with dedicated mic
  • Secondary TFT capacitive touchscreen (with multitouch)
  • 320 x 480 pixels
  • 3.2 inches
Other features
Other features — specifications for C7 Astound, DoubleTime I857.
SpecificationC7 AstoundDoubleTime I857
Dop
  • 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
  • Sensors Accelerometer
  • proximity
  • compass - MP4/H.264 player -MP3/WAV/eAAC+ player -Organizer -Photo/video editor -Document viewer -Voice memo/dial/commands -Predictive text input - For AT&T