BLU C4 vs ZTE Blade A520

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

    C4: 12 g lighter

    C4:
    118 g
    Blade A520:
    130 g
  • Width

    C4: 6.8 mm narrower

    C4:
    64.2 mm
    Blade A520:
    71 mm
  • Screen diagonal

    C4: 1 in smaller diagonal

    C4:
    4 in
    Blade A520:
    5 in
  • Depth

    Blade A520: 2.5 mm thinner

    C4:
    10.9 mm
    Blade A520:
    8.4 mm
  • Height

    C4: 19.7 mm shorter

    C4:
    124.3 mm
    Blade A520:
    144 mm
  • Release year

    C4:
    2018
    Blade A520:
    2017

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 +2.5 mm versus Blade A520
  2. 2. Blade A520

    Height:
    144 mm +19.7 mm versus C4
    Width:
    71 mm +6.8 mm versus C4
    Depth:
    8.4 mm

Weight

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

  1. 1. C4

    118 g

  2. 2. Blade A520

    130 g

    +12 g versus C4

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. Blade A520

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

Blade A520 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.

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

C4: Original memory entry

8 GB · 512 MB RAM

Blade A520: Original memory entry

16 GB · 2 GB RAM 8 GB · 1 GB 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. Blade A520

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 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. Blade A520

    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. Blade A520

Everyday essentials
Everyday essentials — specifications for C4, Blade A520.
SpecificationC4Blade A520
Dimensions (HxWxD)
  • 124.3 Х 64.2 Х 10.9 mm
  • 144 Х 71 Х 8.4 mm
Weight
  • 118 g
  • 130 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 4" inch
  • 5" inch
Screen resolution
  • 480 x 800 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 512 MB RAM
  • 16 GB
  • 2 GB RAM 8 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 64 GB
  • microSD
  • up to 128 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1300 mAh
  • Li-Po
  • 2400 mAh
  • Removable Li-Ion
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Android 7.0 (Nougat)
Chipset Unknown
  • Mediatek MT6737 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for C4, Blade A520.
SpecificationC4Blade A520
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%
  • 67.4%
PPI /points per inch/
  • 233 PPI
  • 294 PPI
Camera and Video
Camera and Video — specifications for C4, Blade A520.
SpecificationC4Blade A520
Rear camera, main
  • 5 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 5 MP
  • 8 MP
  • AF
Functions
  • LED flash
  • LED flash
  • HDR
  • panorama
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 5 MP
  • 8 MP or 2 MP
Performance

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

Performance — specifications for C4, Blade A520.
SpecificationC4Blade A520
Processor CPU
  • Quad-core 1.3 GHz
  • Quad-core 1.25 GHz Cortex-A53
Graphics processor GPU
  • Mali-400
  • Mali-T720MP2
Antutu 7 score *
  • 21722
  • 27862
GeekBench 4 Single Core * Unknown
  • 517
GeekBench 4 Multi-Core * Unknown
  • 1442
General specs
General specs — specifications for C4, Blade A520.
SpecificationC4Blade A520
Release date
  • 2018
  • August
  • 2017
  • March
Colors
  • Black
  • Gold
  • Blue
  • Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 50 USD
  • 80 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)
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for C4, Blade A520.
SpecificationC4Blade A520
SIM card
  • Dual SIM (Micro-SIM)
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
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 / 1900 / 2100 HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA
  • 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
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.1
  • 4.1
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for C4, Blade A520.
SpecificationC4Blade A520
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for C4, Blade A520.
SpecificationC4Blade A520
Dop
  • Sensors Accelerometer For USA
  • Sensors Accelerometer