Samsung DoubleTime I857 vs Samsung Galaxy J2 Core

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: 6 g lighter

    DoubleTime I857:
    148 g
    Galaxy J2 Core:
    154 g
  • Width

    DoubleTime I857: 10.1 mm narrower

    DoubleTime I857:
    62 mm
    Galaxy J2 Core:
    72.1 mm
  • Screen diagonal

    DoubleTime I857: 1.8 in smaller diagonal

    DoubleTime I857:
    3.2 in
    Galaxy J2 Core:
    5 in
  • Chipset

    DoubleTime I857:
    Qualcomm MSM7230
    Galaxy J2 Core:
    Exynos 7570 Quad (14 nm)
  • Depth

    Galaxy J2 Core: 6.1 mm thinner

    DoubleTime I857:
    15 mm
    Galaxy J2 Core:
    8.9 mm
  • Height

    DoubleTime I857: 30.4 mm shorter

    DoubleTime I857:
    113 mm
    Galaxy J2 Core:
    143.4 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. DoubleTime I857

    Height:
    113 mm
    Width:
    62 mm
    Depth:
    15 mm +6.1 mm versus Galaxy J2 Core
  2. 2. Galaxy J2 Core

    Height:
    143.4 mm +30.4 mm versus DoubleTime I857
    Width:
    72.1 mm +10.1 mm versus DoubleTime I857
    Depth:
    8.9 mm

Weight

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

  1. 1. DoubleTime I857

    148 g

  2. 2. Galaxy J2 Core

    154 g

    +6 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 J2 Core

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

Galaxy J2 Core has approximately 126% 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 J2 Core, compared at the same storage capacity.
StorageDoubleTime I857Galaxy J2 Core
8 GB Unknown 1 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 J2 Core

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 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. DoubleTime I857

    1200 mAh

  2. 2. Galaxy J2 Core

    2600 mAh

    +1400 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 J2 Core

Everyday essentials
Everyday essentials — specifications for DoubleTime I857, Galaxy J2 Core.
SpecificationDoubleTime I857Galaxy J2 Core
Dimensions (HxWxD)
  • 113 Х 62 Х 15 mm
  • 143.4 Х 72.1 Х 8.9 mm
Weight
  • 148 g
  • 154 g
Technology
  • TFT
  • PLS TFT
Screen size
  • 3.2" inch
  • 5" inch
Screen resolution
  • 320 x 480 px
  • 540 x 960 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 260 MB
  • 256 MB RAM
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Ion
  • 2600 mAh
  • Removable Li-Ion
Operating system OS
  • Android 2.2 (Froyo)
  • Android 8.1 Oreo (Go edition)
Chipset
  • Qualcomm MSM7230
  • Exynos 7570 Quad (14 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for DoubleTime I857, Galaxy J2 Core.
SpecificationDoubleTime I857Galaxy J2 Core
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 30.5 cm2
  • 68.9 cm2
Screen format
  • 3:2 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 43.5%
  • 66.7%
PPI /points per inch/
  • 180 PPI
  • 220 PPI
Screen protection Unknown
  • Corning Gorilla Glass (unspecified version)
Camera and Video
Camera and Video — specifications for DoubleTime I857, Galaxy J2 Core.
SpecificationDoubleTime I857Galaxy J2 Core
Rear camera, main
  • 3.15 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 8 MP
  • AF
  • f/2.2
Functions Unknown
  • LED flash
  • HDR
  • panorama
Video
  • 320p
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 5 MP
  • Single
Specifications Unknown
  • 5 MP
  • f/2.2
Performance

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

Performance — specifications for DoubleTime I857, Galaxy J2 Core.
SpecificationDoubleTime I857Galaxy J2 Core
Processor CPU
  • 800 MHz Scorpion
  • Quad-core 1.4 GHz Cortex-A53
Graphics processor GPU
  • Adreno 205
  • Mali-T720
Antutu 7 score * Unknown
  • 37852
General specs
General specs — specifications for DoubleTime I857, Galaxy J2 Core.
SpecificationDoubleTime I857Galaxy J2 Core
Release date
  • 2011
  • October
  • 2018
  • August
Colors
  • Black/White
  • Black
  • Gold
  • Lavender
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 100 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 J2 Core.
SpecificationDoubleTime I857Galaxy J2 Core
SIM card
  • Mini-SIM
  • Dual SIM (Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 - J260Y/DS
  • J260G/DS HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - J260M/DS -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 28(700)
  • 38(2600)
  • 40(2300)
  • 41(2500) - J260Y/DS LTE band 1(2100)
  • 2(1900)
  • 4(1700/2100)
  • 12(700)
  • 17(700)
  • 28(700) - J260M/DS LTE band 1(2100)
  • 20(800) - J260G/DS
Speed
  • HSPA 7.2/2 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • No
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 3.0
  • A2DP
  • 4.2
  • A2DP
Harmful irradiation
  • SAR - 0.54 W/kg (head) 0.97 W/kg (body)
  • SAR - 0.61 W/kg (head) 0.61 W/kg (body) SAR EU - 1.39 W/kg (body)
Music and Audio
Music and Audio — specifications for DoubleTime I857, Galaxy J2 Core.
SpecificationDoubleTime I857Galaxy J2 Core
Radio
  • No
  • FM radio
Others
  • Secondary TFT capacitive touchscreen (with multitouch)
  • 320 x 480 pixels
  • 3.2 inches
Unknown
Other features
Other features — specifications for DoubleTime I857, Galaxy J2 Core.
SpecificationDoubleTime I857Galaxy J2 Core
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
  • proximity - Versions: SM-J260M/DS (LATAM); SM-J260Y/DS (Philippines); SM-J260G/DS (India)