Samsung DoubleTime I857 vs Vertu Signature Touch (2015)

Compare recorded specifications, size and practical differences.

+ Add a third phone

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: 77 g lighter

    DoubleTime I857:
    148 g
    Signature Touch (2015):
    225 g
  • Width

    DoubleTime I857: 12 mm narrower

    DoubleTime I857:
    62 mm
    Signature Touch (2015):
    74 mm
  • Screen diagonal

    DoubleTime I857: 2 in smaller diagonal

    DoubleTime I857:
    3.2 in
    Signature Touch (2015):
    5.2 in
  • Chipset

    DoubleTime I857:
    Qualcomm MSM7230
    Signature Touch (2015):
    Qualcomm MSM8994 Snapdragon 810 (20 nm)
  • Depth

    Signature Touch (2015): 4.2 mm thinner

    DoubleTime I857:
    15 mm
    Signature Touch (2015):
    10.8 mm
  • Height

    DoubleTime I857: 42 mm shorter

    DoubleTime I857:
    113 mm
    Signature Touch (2015):
    155 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 +4.2 mm versus Signature Touch (2015)
  2. 2. Signature Touch (2015)

    Height:
    155 mm +42 mm versus DoubleTime I857
    Width:
    74 mm +12 mm versus DoubleTime I857
    Depth:
    10.8 mm

Weight

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

  1. 1. DoubleTime I857

    148 g

  2. 2. Signature Touch (2015)

    225 g

    +77 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. Signature Touch (2015)

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

Signature Touch (2015) has approximately 144.5% 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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

DoubleTime I857: Original memory entry

260 MB · 256 MB RAM

Signature Touch (2015): Original memory entry

64 GB · 512GB 4GB

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. Signature Touch (2015)

NFC:
Yes
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. Signature Touch (2015)

    3160 mAh

    +1960 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. Signature Touch (2015)

Everyday essentials
Everyday essentials — specifications for DoubleTime I857, Signature Touch (2015).
SpecificationDoubleTime I857Signature Touch (2015)
Dimensions (HxWxD)
  • 113 Х 62 Х 15 mm
  • 155 Х 74 Х 10.8 mm
Weight
  • 148 g
  • 225 g
Technology
  • TFT
  • Sapphire crystal glass
Screen size
  • 3.2" inch
  • 5.2" 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
  • 64 GB
  • 512GB 4GB
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
  • 3160 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 2.2 (Froyo)
  • Android 5.1 (Lollipop)
Chipset
  • Qualcomm MSM7230
  • Qualcomm MSM8994 Snapdragon 810 (20 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for DoubleTime I857, Signature Touch (2015).
SpecificationDoubleTime I857Signature Touch (2015)
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 30.5 cm2
  • 74.5 cm2
Screen format
  • 3:2 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 43.5%
  • 65.0%
PPI /points per inch/
  • 180 PPI
  • 424 PPI
Screen protection Unknown
  • Sapphire crystal glass
Camera and Video
Camera and Video — specifications for DoubleTime I857, Signature Touch (2015).
SpecificationDoubleTime I857Signature Touch (2015)
Rear camera, main
  • 3.15 MP
  • Single
  • 21 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 21 MP
  • PDAF
Functions Unknown
  • Dual-LED dual-tone flash
  • panorama
  • HDR
Video
  • 320p
  • Yes
Front camera, selfie
  • 0 MP,
  • 2.1 MP
  • Single
Specifications Unknown
  • 2.1 MP
Performance
Performance — specifications for DoubleTime I857, Signature Touch (2015).
SpecificationDoubleTime I857Signature Touch (2015)
Processor CPU
  • 800 MHz Scorpion
  • Octa-core (4x1.56 GHz Cortex-A53 & 4x1.82 GHz Cortex-A57)
Graphics processor GPU
  • Adreno 205
  • Adreno 430
General specs
General specs — specifications for DoubleTime I857, Signature Touch (2015).
SpecificationDoubleTime I857Signature Touch (2015)
Release date
  • 2011
  • October
  • 2015
  • September
Colors
  • Black/White
  • Jet Calf
  • Garnet Calf
  • Grape Lizard
  • Pure Jet Lizard
  • Jet Alligator
  • Pure Navy Alligator
  • Clous de Paris Alligator
  • Pure Jet Red Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 9000 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, Signature Touch (2015).
SpecificationDoubleTime I857Signature Touch (2015)
SIM card
  • Mini-SIM
  • Micro-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 / 1700(AWS) / 1900 / 2100 TD-SCDMA -4G - LTE band 1(2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 13(700)
  • 17(700)
  • 20(800)
  • 25(1900)
  • 28(700)
  • 29(700)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 7.2/2 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • No
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0 (MHL)
  • USB Host
Bluetooth
  • 3.0
  • A2DP
  • 4.0
  • A2DP
  • LE
  • aptX
Harmful irradiation
  • SAR - 0.54 W/kg (head) 0.97 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for DoubleTime I857, Signature Touch (2015).
SpecificationDoubleTime I857Signature Touch (2015)
Radio
  • No
  • No
Others
  • Secondary TFT capacitive touchscreen (with multitouch)
  • 320 x 480 pixels
  • 3.2 inches
  • Dolby Digital Plus audio enhancement -Active noise cancellation with dedicated mic
Other features
Other features — specifications for DoubleTime I857, Signature Touch (2015).
SpecificationDoubleTime I857Signature Touch (2015)
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 - Fast battery charging (Quick Charge 2.0) -Qi wireless charging - Titanium body (forged grade 5) and luxurious calf leather covered rear panel