Allview Impera i 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

    Impera i: 49.1 g lighter

    Impera i:
    98.9 g
    DoubleTime I857:
    148 g
  • Width

    DoubleTime I857: 5.2 mm narrower

    Impera i:
    67.2 mm
    DoubleTime I857:
    62 mm
  • Screen diagonal

    DoubleTime I857: 1.5 in smaller diagonal

    Impera i:
    4.7 in
    DoubleTime I857:
    3.2 in
  • Chipset

    Impera i:
    Qualcomm MSM8212 Snapdragon 200 (28 nm)
    DoubleTime I857:
    Qualcomm MSM7230
  • Depth

    Impera i: 7.8 mm thinner

    Impera i:
    7.2 mm
    DoubleTime I857:
    15 mm
  • Height

    DoubleTime I857: 22.8 mm shorter

    Impera i:
    135.8 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. Impera i

    Height:
    135.8 mm +22.8 mm versus DoubleTime I857
    Width:
    67.2 mm +5.2 mm versus DoubleTime I857
    Depth:
    7.2 mm
  2. 2. DoubleTime I857

    Height:
    113 mm
    Width:
    62 mm
    Depth:
    15 mm +7.8 mm versus Impera i

Weight

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

  1. 1. Impera i

    98.9 g

  2. 2. DoubleTime I857

    148 g

    +49.1 g versus Impera i

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. Impera i

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

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

Impera i has approximately 99.7% 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.

Recorded RAM for Impera i, DoubleTime I857, compared at the same storage capacity.
StorageImpera iDoubleTime I857
8 GB 1 GB RAM Unknown
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. Impera i

NFC:
See details Super AMOLED
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. Impera i

    1750 mAh

    +550 mAh versus DoubleTime I857

  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. Impera i2. DoubleTime I857

Everyday essentials
Everyday essentials — specifications for Impera i, DoubleTime I857.
SpecificationImpera iDoubleTime I857
Dimensions (HxWxD)
  • 135.8 Х 67.2 Х 7.2 mm
  • 113 Х 62 Х 15 mm
Weight
  • 98.9 g
  • 148 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 4.7" inch
  • 3.2" inch
Screen resolution
  • 720 x 1280 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
  • 1 GB 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.
  • 1750 mAh
  • Removable Li-Po
  • 1200 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Phone 8.1
  • Android 2.2 (Froyo)
Chipset
  • Qualcomm MSM8212 Snapdragon 200 (28 nm)
  • Qualcomm MSM7230
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Impera i, DoubleTime I857.
SpecificationImpera iDoubleTime I857
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 60.9 cm2
  • 30.5 cm2
Screen format
  • 16:9 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 136 Х 66.7 Х 9.9 mm
  • 43.5%
PPI /points per inch/
  • 312 PPI
  • 180 PPI
Screen protection
  • Scratch-resistant glass
Unknown
Camera and Video
Camera and Video — specifications for Impera i, DoubleTime I857.
SpecificationImpera iDoubleTime I857
Rear camera, main
  • 8 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 3.15 MP
  • AF
Functions
  • Dual-LED flash
  • panorama
Unknown
Video
  • Yes
  • 320p
Front camera, selfie
  • 2 MP
  • Single
  • 0 MP,
Specifications
  • 2 MP
Unknown
Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for Impera i, DoubleTime I857.
SpecificationImpera iDoubleTime I857
Processor CPU
  • Quad-core 1.2 GHz Cortex-A7
  • 800 MHz Scorpion
Graphics processor GPU
  • Adreno 302
  • Adreno 205
Antutu 7 score *
  • 12826
Unknown
General specs
General specs — specifications for Impera i, DoubleTime I857.
SpecificationImpera iDoubleTime I857
Release date
  • 2014
  • June
  • 2011
  • October
Colors
  • Black
  • Black/White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 160 EUR
  • 70 EUR
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 7 h 20 min
  • Stand by time- Up to 250 h Talking time- Up to 6 h
Communication and Connectivity
Communication and Connectivity — specifications for Impera i, DoubleTime I857.
SpecificationImpera iDoubleTime I857
SIM card
  • Dual SIM (dual stand-by)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 42.2/5.76 Mbps
  • HSPA 7.2/2 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • No
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 3.0
  • A2DP
Harmful irradiation Unknown
  • SAR - 0.54 W/kg (head) 0.97 W/kg (body)
Music and Audio
Music and Audio — specifications for Impera i, DoubleTime I857.
SpecificationImpera iDoubleTime I857
Radio
  • FM radio
  • No
Others Unknown
  • Secondary TFT capacitive touchscreen (with multitouch)
  • 320 x 480 pixels
  • 3.2 inches
Other features
Other features — specifications for Impera i, DoubleTime I857.
SpecificationImpera iDoubleTime I857
Dop
  • Sensors Accelerometer
  • proximity
  • compass
  • 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