BLU J2 vs Vertu Signature Touch (2015)

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

    J2: 79 g lighter

    J2:
    146 g
    Signature Touch (2015):
    225 g
  • Screen diagonal

    J2: 0.2 in smaller diagonal

    J2:
    5 in
    Signature Touch (2015):
    5.2 in
  • Depth

    J2: 0.5 mm thinner

    J2:
    10.3 mm
    Signature Touch (2015):
    10.8 mm
  • Height

    J2: 11 mm shorter

    J2:
    144 mm
    Signature Touch (2015):
    155 mm
  • Release year

    J2:
    2019
    Signature Touch (2015):
    2015

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. J2

    Height:
    144 mm
    Width:
    73.1 mm
    Depth:
    10.3 mm
  2. 2. Signature Touch (2015)

    Height:
    155 mm +11 mm versus J2
    Width:
    74 mm
    Depth:
    10.8 mm +0.5 mm versus J2

Weight

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

  1. 1. J2

    146 g

  2. 2. Signature Touch (2015)

    225 g

    +79 g versus J2

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. J2

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 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 8.2% more rectangular screen area than J2.

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 J2, Signature Touch (2015), compared at the same storage capacity.
StorageJ2Signature Touch (2015)
32 GB 1 GB RAM Unknown
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. J2

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC

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. J2

    2000 mAh

  2. 2. Signature Touch (2015)

    3160 mAh

    +1160 mAh versus J2

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. J22. Signature Touch (2015)

Everyday essentials
Everyday essentials — specifications for J2, Signature Touch (2015).
SpecificationJ2Signature Touch (2015)
Dimensions (HxWxD)
  • 144 Х 73.1 Х 10.3 mm
  • 155 Х 74 Х 10.8 mm
Weight
  • 146 g
  • 225 g
Technology
  • IPS LCD
  • Sapphire crystal glass
Screen size
  • 5" inch
  • 5.2" inch
Screen resolution
  • 480 x 854 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 1GB RAM
  • 64 GB
  • 512GB 4GB
Memory card support
  • microSDXC
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Po
  • 3160 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Android 5.1 (Lollipop)
Chipset Unknown
  • Qualcomm MSM8994 Snapdragon 810 (20 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for J2, Signature Touch (2015).
SpecificationJ2Signature Touch (2015)
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 74.5 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 65.4%
  • 65.0%
PPI /points per inch/
  • 196 PPI
  • 424 PPI
Screen protection Unknown
  • Sapphire crystal glass
Camera and Video
Camera and Video — specifications for J2, Signature Touch (2015).
SpecificationJ2Signature Touch (2015)
Rear camera, main
  • 5 MP
  • Single
  • 21 MP
  • Single
Camera specs
  • 5 MP
  • 21 MP
  • PDAF
Functions
  • LED flash
  • Dual-LED dual-tone flash
  • panorama
  • HDR
Video
  • 720p@30fps
  • Yes
Front camera, selfie
  • 5 MP
  • Single
  • 2.1 MP
  • Single
Specifications
  • 5 MP
  • 2.1 MP
Performance
Performance — specifications for J2, Signature Touch (2015).
SpecificationJ2Signature Touch (2015)
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Octa-core (4x1.56 GHz Cortex-A53 & 4x1.82 GHz Cortex-A57)
Graphics processor GPU
  • Mali-400
  • Adreno 430
General specs
General specs — specifications for J2, Signature Touch (2015).
SpecificationJ2Signature Touch (2015)
Release date
  • 2019
  • December
  • 2015
  • September
Colors
  • Blue
  • Black
  • Brown
  • 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.
  • 50 EUR
  • 9000 EUR
Communication and Connectivity
Communication and Connectivity — specifications for J2, Signature Touch (2015).
SpecificationJ2Signature Touch (2015)
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Micro-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  • 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 21.1/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • 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
  • 4.1
  • A2DP
  • LE
  • 4.0
  • A2DP
  • LE
  • aptX
Music and Audio
Music and Audio — specifications for J2, Signature Touch (2015).
SpecificationJ2Signature Touch (2015)
Radio
  • FM radio
  • No
Others Unknown
  • Dolby Digital Plus audio enhancement -Active noise cancellation with dedicated mic
Other features
Other features — specifications for J2, Signature Touch (2015).
SpecificationJ2Signature Touch (2015)
Dop
  • Sensors Accelerometer For USA
  • 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