Samsung DoubleTime I857 vs ZTE Star 1

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

    Star 1: 18 g lighter

    DoubleTime I857:
    148 g
    Star 1:
    130 g
  • Width

    DoubleTime I857: 7 mm narrower

    DoubleTime I857:
    62 mm
    Star 1:
    69 mm
  • Screen diagonal

    DoubleTime I857: 1.8 in smaller diagonal

    DoubleTime I857:
    3.2 in
    Star 1:
    5 in
  • Chipset

    DoubleTime I857:
    Qualcomm MSM7230
    Star 1:
    Qualcomm MSM8928 Snapdragon 400 (28 nm)
  • Depth

    Star 1: 8.4 mm thinner

    DoubleTime I857:
    15 mm
    Star 1:
    6.6 mm
  • Height

    DoubleTime I857: 26 mm shorter

    DoubleTime I857:
    113 mm
    Star 1:
    139 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 +8.4 mm versus Star 1
  2. 2. Star 1

    Height:
    139 mm +26 mm versus DoubleTime I857
    Width:
    69 mm +7 mm versus DoubleTime I857
    Depth:
    6.6 mm

Weight

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

  1. 1. DoubleTime I857

    148 g

    +18 g versus Star 1

  2. 2. Star 1

    130 g

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. Star 1

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

Star 1 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, Star 1, compared at the same storage capacity.
StorageDoubleTime I857Star 1
16 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. Star 1

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 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. Star 1

    2300 mAh

    +1100 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. Star 1

Everyday essentials
Everyday essentials — specifications for DoubleTime I857, Star 1.
SpecificationDoubleTime I857Star 1
Dimensions (HxWxD)
  • 113 Х 62 Х 15 mm
  • 139 Х 69 Х 6.6 mm
Weight
  • 148 g
  • 130 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.2" inch
  • 5" inch
Screen resolution
  • 320 x 480 px
  • 1080 x 1920 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 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 64 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Ion
  • 2300 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 2.2 (Froyo)
  • Android 4.4.2 (KitKat)
Chipset
  • Qualcomm MSM7230
  • Qualcomm MSM8928 Snapdragon 400 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for DoubleTime I857, Star 1.
SpecificationDoubleTime I857Star 1
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%
  • 71.9%
PPI /points per inch/
  • 180 PPI
  • 441 PPI
Camera and Video
Camera and Video — specifications for DoubleTime I857, Star 1.
SpecificationDoubleTime I857Star 1
Rear camera, main
  • 3.15 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 8 MP
  • AF
Functions Unknown
  • Dual-LED dual-tone flash
Video
  • 320p
  • Yes
Front camera, selfie
  • 0 MP,
  • 5 MP
  • Single
Specifications Unknown
  • 5 MP
Performance

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

Performance — specifications for DoubleTime I857, Star 1.
SpecificationDoubleTime I857Star 1
Processor CPU
  • 800 MHz Scorpion
  • Quad-core 1.6 GHz Cortex-A7
Graphics processor GPU
  • Adreno 205
  • Adreno 305
Antutu 7 score * Unknown
  • 19198
GeekBench 4 Single Core * Unknown
  • 361
GeekBench 4 Multi-Core * Unknown
  • 1118
General specs
General specs — specifications for DoubleTime I857, Star 1.
SpecificationDoubleTime I857Star 1
Release date
  • 2011
  • October
  • 2014
  • April
Colors
  • Black/White
  • Pink
  • Black
  • White
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
  • Stand by time- Up to 460 h Talking time- Up to 20 h
Communication and Connectivity
Communication and Connectivity — specifications for DoubleTime I857, Star 1.
SpecificationDoubleTime I857Star 1
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 -3G - HSDPA 900 / 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
  • dual-band
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB Host
Bluetooth
  • 3.0
  • A2DP
  • 4.0
  • A2DP
Harmful irradiation
  • SAR - 0.54 W/kg (head) 0.97 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for DoubleTime I857, Star 1.
SpecificationDoubleTime I857Star 1
Radio
  • No
  • FM radio
Others
  • Secondary TFT capacitive touchscreen (with multitouch)
  • 320 x 480 pixels
  • 3.2 inches
  • Dolby Mobile -Active noise cancellation with dedicated mic
Other features
Other features — specifications for DoubleTime I857, Star 1.
SpecificationDoubleTime I857Star 1
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