Samsung DoubleTime I857 vs Samsung Galaxy J7 (2018)

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

    DoubleTime I857: 33 g lighter

    DoubleTime I857:
    148 g
    Galaxy J7 (2018):
    181 g
  • Width

    DoubleTime I857: 14.2 mm narrower

    DoubleTime I857:
    62 mm
    Galaxy J7 (2018):
    76.2 mm
  • Screen diagonal

    DoubleTime I857: 2.3 in smaller diagonal

    DoubleTime I857:
    3.2 in
    Galaxy J7 (2018):
    5.5 in
  • Depth

    Galaxy J7 (2018): 6.4 mm thinner

    DoubleTime I857:
    15 mm
    Galaxy J7 (2018):
    8.6 mm
  • Height

    DoubleTime I857: 40.2 mm shorter

    DoubleTime I857:
    113 mm
    Galaxy J7 (2018):
    153.2 mm
  • Release year

    DoubleTime I857:
    2011
    Galaxy J7 (2018):
    2018

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. DoubleTime I857

    Height:
    113 mm
    Width:
    62 mm
    Depth:
    15 mm +6.4 mm versus Galaxy J7 (2018)
  2. 2. Galaxy J7 (2018)

    Height:
    153.2 mm +40.2 mm versus DoubleTime I857
    Width:
    76.2 mm +14.2 mm versus DoubleTime I857
    Depth:
    8.6 mm

Weight

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

  1. 1. DoubleTime I857

    148 g

  2. 2. Galaxy J7 (2018)

    181 g

    +33 g versus DoubleTime I857

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. DoubleTime I857

    Screen diagonal:
    3.2 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    30.5 cm²
  2. 2. Galaxy J7 (2018)

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

Galaxy J7 (2018) has approximately 173.5% 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 DoubleTime I857, Galaxy J7 (2018), compared at the same storage capacity.
StorageDoubleTime I857Galaxy J7 (2018)
16 GB Unknown 2 GB RAM
32 GB Unknown 2 GB 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. DoubleTime I857

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

2. Galaxy J7 (2018)

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 400 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. DoubleTime I857

    1200 mAh

  2. 2. Galaxy J7 (2018)

    3300 mAh

    +2100 mAh versus DoubleTime I857

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. DoubleTime I8572. Galaxy J7 (2018)

Everyday essentials
Everyday essentials — specifications for DoubleTime I857, Galaxy J7 (2018).
SpecificationDoubleTime I857Galaxy J7 (2018)
Dimensions (HxWxD)
  • 113 Х 62 Х 15 mm
  • 153.2 Х 76.2 Х 8.6 mm
Weight
  • 148 g
  • 181 g
Technology
  • TFT
  • TFT
Screen size
  • 3.2" inch
  • 5.5" inch
Screen resolution
  • 320 x 480 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 260 MB
  • 256 MB RAM
  • 16/32 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 400 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Ion
  • 3300 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 2.2 (Froyo)
  • Android 8.0 (Oreo)
Chipset
  • Qualcomm MSM7230
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for DoubleTime I857, Galaxy J7 (2018).
SpecificationDoubleTime I857Galaxy J7 (2018)
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 30.5 cm2
  • 83.4 cm2
Screen format
  • 3:2 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 43.5%
  • 71.4%
PPI /points per inch/
  • 180 PPI
  • 267 PPI
Camera and Video
Camera and Video — specifications for DoubleTime I857, Galaxy J7 (2018).
SpecificationDoubleTime I857Galaxy J7 (2018)
Rear camera, main
  • 3.15 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 13 MP
  • AF
  • f/1.7
Functions Unknown
  • LED flash
  • HDR
Video
  • 320p
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 13 MP
  • Single
Specifications Unknown
  • 13 MP
  • f/1.9
Performance
Performance — specifications for DoubleTime I857, Galaxy J7 (2018).
SpecificationDoubleTime I857Galaxy J7 (2018)
Processor CPU
  • 800 MHz Scorpion
  • Octa-core 1.6 GHz
Graphics processor GPU
  • Adreno 205
Unknown
General specs
General specs — specifications for DoubleTime I857, Galaxy J7 (2018).
SpecificationDoubleTime I857Galaxy J7 (2018)
Release date
  • 2011
  • October
  • 2018
  • June
Colors
  • Black/White
  • Black
  • Blue
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 200 EUR
Battery life
  • Stand by time- Up to 250 h Talking time- Up to 6 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for DoubleTime I857, Galaxy J7 (2018).
SpecificationDoubleTime I857Galaxy J7 (2018)
SIM card
  • Mini-SIM
  • Nano-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE
Speed
  • HSPA 7.2/2 Mbps
  • HSPA
  • LTE
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • No
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 3.0
  • A2DP
  • 4.2
  • A2DP
  • LE
Harmful irradiation
  • SAR - 0.54 W/kg (head) 0.97 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for DoubleTime I857, Galaxy J7 (2018).
SpecificationDoubleTime I857Galaxy J7 (2018)
Radio
  • No
  • No
Others
  • Secondary TFT capacitive touchscreen (with multitouch)
  • 320 x 480 pixels
  • 3.2 inches
Unknown
Other features
Other features — specifications for DoubleTime I857, Galaxy J7 (2018).
SpecificationDoubleTime I857Galaxy J7 (2018)
Dop
  • 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
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - ANT+ - Also known as Samsung SM-J737
  • Galaxy J7 V (Verizon)
  • Galaxy J7 Star (T-Mobile)
  • Galaxy J7 Refine 2018 (Sprint
  • Virgin Mobile
  • Boost)