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BLU Dash 4.0 vs ZTE Obsidian

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

    Dash 4.0: 9.5 g lighter

    Dash 4.0:
    128 g
    Obsidian:
    137.5 g
  • Width

    Dash 4.0: 5.6 mm narrower

    Dash 4.0:
    63 mm
    Obsidian:
    68.6 mm
  • Screen diagonal

    Dash 4.0: 0.5 in smaller diagonal

    Dash 4.0:
    4 in
    Obsidian:
    4.5 in
  • Chipset

    Dash 4.0:
    Mediatek MT6572 (28 nm)
    Obsidian:
    Mediatek MT6735M (28 nm)
  • Depth

    Obsidian: 1.6 mm thinner

    Dash 4.0:
    11.8 mm
    Obsidian:
    10.2 mm
  • Height

    Dash 4.0: 13.4 mm shorter

    Dash 4.0:
    124 mm
    Obsidian:
    137.4 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. Dash 4.0

    Height:
    124 mm
    Width:
    63 mm
    Depth:
    11.8 mm +1.6 mm versus Obsidian
  2. 2. Obsidian

    Height:
    137.4 mm +13.4 mm versus Dash 4.0
    Width:
    68.6 mm +5.6 mm versus Dash 4.0
    Depth:
    10.2 mm

Weight

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

  1. 1. Dash 4.0

    128 g

  2. 2. Obsidian

    137.5 g

    +9.5 g versus Dash 4.0

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. Dash 4.0

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. Obsidian

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

Obsidian has approximately 22.6% more rectangular screen area than Dash 4.0.

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 Dash 4.0, Obsidian, compared at the same storage capacity.
StorageDash 4.0Obsidian
4 GB Unknown 1 GB RAM
Dash 4.0: Original memory entry

4 GB · 512 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. Dash 4.0

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot)

2. Obsidian

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 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. Dash 4.0

    1500 mAh

  2. 2. Obsidian

    1800 mAh

    +300 mAh versus Dash 4.0

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. Dash 4.02. Obsidian

Everyday essentials
Everyday essentials — specifications for Dash 4.0, Obsidian.
SpecificationDash 4.0Obsidian
Dimensions (HxWxD)
  • 124 Х 63 Х 11.8 mm
  • 137.4 Х 68.6 Х 10.2 mm
Weight
  • 128 g
  • 137.5 g
Technology
  • TFT
  • TFT
Screen size
  • 4" inch
  • 4.5" inch
Screen resolution
  • 480 x 800 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 4 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 1800 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.2 (Jelly Bean)
  • Android 5.1 (Lollipop)
Chipset
  • Mediatek MT6572 (28 nm)
  • Mediatek MT6735M (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Dash 4.0, Obsidian.
SpecificationDash 4.0Obsidian
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 45.5 cm2
  • 55.8 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 58.3%
  • 59.2%
PPI /points per inch/
  • 233 PPI
  • 218 PPI
Camera and Video
Camera and Video — specifications for Dash 4.0, Obsidian.
SpecificationDash 4.0Obsidian
Rear camera, main
  • 5 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 5 MP
  • 5 MP
Functions
  • LED flash
  • LED flash
Video
  • 720@30fps
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 2 MP
  • Single
Specifications
  • VGA
  • 2 MP
Performance

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

Performance — specifications for Dash 4.0, Obsidian.
SpecificationDash 4.0Obsidian
Processor CPU
  • Dual-core 1.3 GHz Cortex-A7
  • Quad-core 1.0 GHz Cortex-A53
Graphics processor GPU
  • Mali-400
  • Mali-T720MP2
Antutu 7 score *
  • 4056
Unknown
General specs
General specs — specifications for Dash 4.0, Obsidian.
SpecificationDash 4.0Obsidian
Release date
  • 2012
  • December
  • 2015
  • August
Colors
  • Black
  • White
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 90 EUR
  • 130 EUR
Battery life
  • Stand by time- Up to 450 h (2G) / Up to 340 h (3G) Talking time- Up to 14 h (2G) / Up to 8 h (3G)
  • Stand by time- Up to 252 h (3G) Talking time- Up to 6 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Dash 4.0, Obsidian.
SpecificationDash 4.0Obsidian
SIM card
  • Dual SIM (Mini-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 / 1700(AWS) / 1900 -4G - LTE band 2(1900)
  • 4(1700/2100)
  • 12(700)
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE
GPRS
  • Class 12
  • Yes
Edge
  • Class 12
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for Dash 4.0, Obsidian.
SpecificationDash 4.0Obsidian
Radio
  • Stereo FM radio
  • FM radio
Other features
Other features — specifications for Dash 4.0, Obsidian.
SpecificationDash 4.0Obsidian
Dop
  • Sensors Accelerometer
  • gyro
  • compass - D261 Single SIM D271 Dual SIM
  • Sensors Accelerometer