Samsung DoubleTime I857 vs ZTE Blade 20

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: 42 g lighter

    DoubleTime I857:
    148 g
    Blade 20:
    190 g
  • Width

    DoubleTime I857: 14.6 mm narrower

    DoubleTime I857:
    62 mm
    Blade 20:
    76.6 mm
  • Screen diagonal

    DoubleTime I857: 3.29 in smaller diagonal

    DoubleTime I857:
    3.2 in
    Blade 20:
    6.49 in
  • Chipset

    DoubleTime I857:
    Qualcomm MSM7230
    Blade 20:
    Mediatek MT6771 Helio P70 (12nm)
  • Rear camera layout

    DoubleTime I857:
    Single
    Blade 20:
    Dual
  • Depth

    Blade 20: 6 mm thinner

    DoubleTime I857:
    15 mm
    Blade 20:
    9 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 mm versus Blade 20
  2. 2. Blade 20

    Height:
    162.9 mm +49.9 mm versus DoubleTime I857
    Width:
    76.6 mm +14.6 mm versus DoubleTime I857
    Depth:
    9 mm

Weight

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

  1. 1. DoubleTime I857

    148 g

  2. 2. Blade 20

    190 g

    +42 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. Blade 20

    Screen diagonal:
    6.49 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    103.4 cm²

Blade 20 has approximately 239.1% 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, Blade 20, compared at the same storage capacity.
StorageDoubleTime I857Blade 20
128 GB Unknown 4 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. Blade 20

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses shared SIM 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. Blade 20

    5000 mAh

    +3800 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. Blade 20

Everyday essentials
Everyday essentials — specifications for DoubleTime I857, Blade 20.
SpecificationDoubleTime I857Blade 20
Dimensions (HxWxD)
  • 113 Х 62 Х 15 mm
  • 162.9 Х 76.6 Х 9 mm
Weight
  • 148 g
  • 190 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.2" inch
  • 6.49" inch
Screen resolution
  • 320 x 480 px
  • 720 x 1560 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 260 MB
  • 256 MB RAM
  • 128GB 4GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB (uses shared SIM slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Ion
  • 5000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 2.2 (Froyo)
  • Android 9.0 (Pie)
Chipset
  • Qualcomm MSM7230
  • Mediatek MT6771 Helio P70 (12nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for DoubleTime I857, Blade 20.
SpecificationDoubleTime I857Blade 20
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 30.5 cm2
  • 103.4 cm2
Screen format
  • 3:2 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 43.5%
  • 82.9%
PPI /points per inch/
  • 180 PPI
  • 265 PPI
Camera and Video
Camera and Video — specifications for DoubleTime I857, Blade 20.
SpecificationDoubleTime I857Blade 20
Rear camera, main
  • 3.15 MP
  • Single
  • 16 MP
  • Dual
Camera specs
  • 3.15 MP
  • AF
  • 16 MP
  • f/2.0
  • PDAF -8 MP
  • 12mm (ultrawide) -2 MP
  • depth sensor
Functions Unknown
  • LED flash
  • HDR
  • panorama
Video
  • 320p
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 8 MP
  • Single
Specifications Unknown
  • 8 MP
  • f/2.4
Performance
Performance — specifications for DoubleTime I857, Blade 20.
SpecificationDoubleTime I857Blade 20
Processor CPU
  • 800 MHz Scorpion
  • Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
Graphics processor GPU
  • Adreno 205
  • Mali-G72 MP3
General specs
General specs — specifications for DoubleTime I857, Blade 20.
SpecificationDoubleTime I857Blade 20
Release date
  • 2011
  • October
  • 2019
  • October
Colors
  • Black/White
  • Turquoise
  • Magic red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 130 EUR
Battery life
  • Stand by time- Up to 250 h Talking time- Up to 6 h
Unknown
Body build Unknown
  • Front glass
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for DoubleTime I857, Blade 20.
SpecificationDoubleTime I857Blade 20
SIM card
  • Mini-SIM
  • Hybrid Dual SIM (Nano-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 -4G - LTE (unspecified)
Speed
  • HSPA 7.2/2 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • No
  • Wi-Fi 802.11 b/g/n
  • 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
  • 5.0
  • 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, Blade 20.
SpecificationDoubleTime I857Blade 20
Radio
  • No
  • FM radio
  • recording
Others
  • Secondary TFT capacitive touchscreen (with multitouch)
  • 320 x 480 pixels
  • 3.2 inches
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for DoubleTime I857, Blade 20.
SpecificationDoubleTime I857Blade 20
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 Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast battery charging 18W