A1 Smart N9 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.

  • Width

    DoubleTime I857: 6.8 mm narrower

    Smart N9:
    68.8 mm
    DoubleTime I857:
    62 mm
  • Screen diagonal

    DoubleTime I857: 2.3 in smaller diagonal

    Smart N9:
    5.5 in
    DoubleTime I857:
    3.2 in
  • Chipset

    Smart N9:
    Mediatek MT6739WA (28 nm)
    DoubleTime I857:
    Qualcomm MSM7230
  • Depth

    Smart N9: 6.3 mm thinner

    Smart N9:
    8.7 mm
    DoubleTime I857:
    15 mm
  • Height

    DoubleTime I857: 34.1 mm shorter

    Smart N9:
    147.1 mm
    DoubleTime I857:
    113 mm
  • Release year

    Smart N9:
    2018
    DoubleTime I857:
    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. Smart N9

    Height:
    147.1 mm +34.1 mm versus DoubleTime I857
    Width:
    68.8 mm +6.8 mm versus DoubleTime I857
    Depth:
    8.7 mm
  2. 2. DoubleTime I857

    Height:
    113 mm
    Width:
    62 mm
    Depth:
    15 mm +6.3 mm versus Smart N9

Weight

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

  1. 1. Smart N9

    145 g

  2. 2. DoubleTime I857

    148 g

    +3 g versus Smart N9

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. Smart N9

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    78.1 cm²
  2. 2. DoubleTime I857

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

Smart N9 has approximately 156% 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 Smart N9, DoubleTime I857, compared at the same storage capacity.
StorageSmart N9DoubleTime I857
16 GB 2 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. Smart N9

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

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. Smart N9

    2900 mAh

    +1700 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. Smart N92. DoubleTime I857

Everyday essentials
Everyday essentials — specifications for Smart N9, DoubleTime I857.
SpecificationSmart N9DoubleTime I857
Dimensions (HxWxD)
  • 147.1 Х 68.8 Х 8.7 mm
  • 113 Х 62 Х 15 mm
Weight
  • 145 g
  • 148 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.5" inch
  • 3.2" inch
Screen resolution
  • 720 x 1440 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16GB 2GB RAM
  • 260 MB
  • 256 MB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2900 mAh
  • Non-removable Li-Ion
  • 1200 mAh
  • Removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo)
  • Android 2.2 (Froyo)
Chipset
  • Mediatek MT6739WA (28 nm)
  • Qualcomm MSM7230
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Smart N9, DoubleTime I857.
SpecificationSmart N9DoubleTime I857
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 78.1 cm2
  • 30.5 cm2
Screen format
  • 18:9 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 77.1%
  • 43.5%
PPI /points per inch/
  • 293 PPI
  • 180 PPI
Camera and Video
Camera and Video — specifications for Smart N9, DoubleTime I857.
SpecificationSmart N9DoubleTime I857
Rear camera, main
  • 13 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 13 MP
  • AF
  • 3.15 MP
  • AF
Functions
  • LED flash
Unknown
Video
  • 1080p@30fps
  • 320p
Front camera, selfie
  • 8 MP
  • Single
  • 0 MP,
Specifications
  • 8 MP
Unknown
Performance
Performance — specifications for Smart N9, DoubleTime I857.
SpecificationSmart N9DoubleTime I857
Processor CPU
  • Quad-core 1.3 GHz Cortex-A53
  • 800 MHz Scorpion
Graphics processor GPU
  • Mali-T720MP2
  • Adreno 205
General specs
General specs — specifications for Smart N9, DoubleTime I857.
SpecificationSmart N9DoubleTime I857
Release date
  • 2018
  • June
  • 2011
  • October
Colors
  • Silver Aluminium
  • Black Titanium
  • Black/White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 120 EUR
  • 70 EUR
Battery life Unknown
  • Stand by time- Up to 250 h Talking time- Up to 6 h
Communication and Connectivity
Communication and Connectivity — specifications for Smart N9, DoubleTime I857.
SpecificationSmart N9DoubleTime I857
SIM card
  • Nano-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA -4G - LTE (unspecified)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA
  • LTE Cat4 150/50 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
  • 3.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.96 W/kg (head) 1.56 W/kg (body)
  • SAR - 0.54 W/kg (head) 0.97 W/kg (body)
Music and Audio
Music and Audio — specifications for Smart N9, DoubleTime I857.
SpecificationSmart N9DoubleTime 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 Smart N9, DoubleTime I857.
SpecificationSmart N9DoubleTime I857
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • 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