BLU C4 vs Xolo Black 1X

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.

  • Width

    C4: 7.8 mm narrower

    C4:
    64.2 mm
    Black 1X:
    72 mm
  • Screen diagonal

    C4: 1 in smaller diagonal

    C4:
    4 in
    Black 1X:
    5 in
  • Depth

    Black 1X: 3.3 mm thinner

    C4:
    10.9 mm
    Black 1X:
    7.6 mm
  • Height

    C4: 20.3 mm shorter

    C4:
    124.3 mm
    Black 1X:
    144.6 mm
  • Release year

    C4:
    2018
    Black 1X:
    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. C4

    Height:
    124.3 mm
    Width:
    64.2 mm
    Depth:
    10.9 mm +3.3 mm versus Black 1X
    Weight:
    118 g
  2. 2. Black 1X

    Height:
    144.6 mm +20.3 mm versus C4
    Width:
    72 mm +7.8 mm versus C4
    Depth:
    7.6 mm
    Weight:
    Unknown

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. C4

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. Black 1X

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

Black 1X has approximately 51.3% more rectangular screen area than C4.

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 C4, Black 1X, compared at the same storage capacity.
StorageC4Black 1X
32 GB Unknown 3 GB RAM
C4: Original memory entry

8 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. C4

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

2. Black 1X

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 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. C4

    1300 mAh

  2. 2. Black 1X

    2400 mAh

    +1100 mAh versus C4

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. C42. Black 1X

Everyday essentials
Everyday essentials — specifications for C4, Black 1X.
SpecificationC4Black 1X
Dimensions (HxWxD)
  • 124.3 Х 64.2 Х 10.9 mm
  • 144.6 Х 72 Х 7.6 mm
Weight
  • 118 g
  • 0 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 4" inch
  • 5" inch
Screen resolution
  • 480 x 800 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 512 MB RAM
  • 32 GB
  • 3 GB RAM
Memory card support
  • microSD
  • up to 64 GB
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1300 mAh
  • Li-Po
  • 2400 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Android 5.1 (Lollipop)
  • upgradable to 6.0 (Marshmallow); HIVE Atlas UI
Chipset Unknown
  • Mediatek MT6753 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for C4, Black 1X.
SpecificationC4Black 1X
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 45.5 cm2
  • 68.9 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 57.1%
  • 66.2%
PPI /points per inch/
  • 233 PPI
  • 441 PPI
Screen protection Unknown
  • Asahi Dragontrail Glass
Camera and Video
Camera and Video — specifications for C4, Black 1X.
SpecificationC4Black 1X
Rear camera, main
  • 5 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 5 MP
  • 13 MP
  • PDAF
Functions
  • LED flash
  • LED flash
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 5 MP
  • 5 MP
Performance

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

Performance — specifications for C4, Black 1X.
SpecificationC4Black 1X
Processor CPU
  • Quad-core 1.3 GHz
  • Octa-core 1.3 GHz Cortex-A53
Graphics processor GPU
  • Mali-400
  • Mali-T720MP3
Antutu 7 score *
  • 21722
Unknown
GeekBench 4 Single Core * Unknown
  • 617
GeekBench 4 Multi-Core * Unknown
  • 2697
General specs
General specs — specifications for C4, Black 1X.
SpecificationC4Black 1X
Release date
  • 2018
  • August
  • 2015
  • October
Colors
  • Black
  • Gold
  • Blue
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 50 USD
  • 140 EUR
Battery life
  • Stand by time- Up to 400 h (2G) / Up to 450 h (3G) Talking time- Up to 18 h (2G) / Up to 13 h (3G)
  • Stand by time- Up to 394 h (2G) / Up to 354 h (3G) Talking time- Up to 27 h (2G) / Up to 12 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for C4, Black 1X.
SpecificationC4Black 1X
SIM card
  • Dual SIM (Micro-SIM)
  • Hybrid Dual 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 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE 1800 TD-LTE 2300
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA 42.2/7.2 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • 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
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB Host
Bluetooth
  • 2.1
  • 4.0
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.09 W/kg (head) 0.14 W/kg (body)
Music and Audio
Music and Audio — specifications for C4, Black 1X.
SpecificationC4Black 1X
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for C4, Black 1X.
SpecificationC4Black 1X
Dop
  • Sensors Accelerometer For USA
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - For India