Asus Zenfone Selfie ZD551KL vs BLU C4

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: 52 g lighter

    Zenfone Selfie ZD551KL:
    170 g
    C4:
    118 g
  • Width

    C4: 13 mm narrower

    Zenfone Selfie ZD551KL:
    77.2 mm
    C4:
    64.2 mm
  • Screen diagonal

    C4: 1.5 in smaller diagonal

    Zenfone Selfie ZD551KL:
    5.5 in
    C4:
    4 in
  • Height

    C4: 32.2 mm shorter

    Zenfone Selfie ZD551KL:
    156.5 mm
    C4:
    124.3 mm
  • Release year

    Zenfone Selfie ZD551KL:
    2015
    C4:
    2018

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. Zenfone Selfie ZD551KL

    Height:
    156.5 mm +32.2 mm versus C4
    Width:
    77.2 mm +13 mm versus C4
    Depth:
    10.8 mm
  2. 2. C4

    Height:
    124.3 mm
    Width:
    64.2 mm
    Depth:
    10.9 mm

Weight

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

  1. 1. Zenfone Selfie ZD551KL

    170 g

    +52 g versus C4

  2. 2. C4

    118 g

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. Zenfone Selfie ZD551KL

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. C4

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

Zenfone Selfie ZD551KL has approximately 83.1% 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.

Zenfone Selfie ZD551KL: Original memory entry

16/32 GB · 2/3 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. Zenfone Selfie ZD551KL

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (dedicated slot)

2. C4

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

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. Zenfone Selfie ZD551KL

    3000 mAh

    +1700 mAh versus C4

  2. 2. C4

    1300 mAh

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. Zenfone Selfie ZD551KL2. C4

Everyday essentials
Everyday essentials — specifications for Zenfone Selfie ZD551KL, C4.
SpecificationZenfone Selfie ZD551KLC4
Dimensions (HxWxD)
  • 156.5 Х 77.2 Х 10.8 mm
  • 124.3 Х 64.2 Х 10.9 mm
Weight
  • 170 g
  • 118 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 4" inch
Screen resolution
  • 1080 x 1920 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16/32 GB
  • 2/3 GB RAM
  • 8 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 256 GB (dedicated slot)
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Removable Li-Po
  • 1300 mAh
  • Li-Po
Operating system OS
  • Android 5.0 (Lollipop)
  • upgradable to 6.0 (Marshmallow); ZenUI
  • Android 8.1 Oreo (Go edition)
Chipset
  • Qualcomm MSM8939 Snapdragon 615 (28 nm)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Zenfone Selfie ZD551KL, C4.
SpecificationZenfone Selfie ZD551KLC4
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 82.6 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 68.3%
  • 57.1%
PPI /points per inch/
  • 403 PPI
  • 233 PPI
Screen protection
  • Corning Gorilla Glass 4
  • oleophobic coating
Unknown
Camera and Video
Camera and Video — specifications for Zenfone Selfie ZD551KL, C4.
SpecificationZenfone Selfie ZD551KLC4
Rear camera, main
  • 13 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 13 MP
  • f/2.0
  • 28mm (wide)
  • 1/3''
  • laser AF
  • 5 MP
Functions
  • Dual-LED dual-tone flash
  • LED flash
Video
  • 1080p@30fps
  • 720p@30fps
Front camera, selfie
  • 13 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 13 MP
  • f/2.2
  • AF
  • 5 MP
Performance

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

Performance — specifications for Zenfone Selfie ZD551KL, C4.
SpecificationZenfone Selfie ZD551KLC4
Processor CPU
  • Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
  • Quad-core 1.3 GHz
Graphics processor GPU
  • Adreno 405
  • Mali-400
Antutu 7 score * Unknown
  • 21722
GeekBench 4 Single Core *
  • 582
Unknown
GeekBench 4 Multi-Core *
  • 1610
Unknown
GeekBench 4 RenderScript *
  • 1670
Unknown
General specs
General specs — specifications for Zenfone Selfie ZD551KL, C4.
SpecificationZenfone Selfie ZD551KLC4
Release date
  • 2015
  • June
  • 2018
  • August
Colors
  • Pure White
  • Chic Pink
  • Aqua Blue
  • Black
  • Gold
  • Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 280 EUR
  • 50 USD
Battery life Unknown
  • 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)
Body build
  • plastic body
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Zenfone Selfie ZD551KL, C4.
SpecificationZenfone Selfie ZD551KLC4
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM (Micro-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800) - Global LTE band 1(2100)
  • 6(900)
  • 9(1800)
  • 18(800)
  • 19(800)
  • 28(700) - Taiwan LTE band 1(2100)
  • 4(1700/2100)
  • 17(700)
  • 20(800) - USA LTE band 1(2100)
  • 3(1800) - India
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 21.1/5.76 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • USB Host
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 2.1
Music and Audio
Music and Audio — specifications for Zenfone Selfie ZD551KL, C4.
SpecificationZenfone Selfie ZD551KLC4
Radio
  • FM radio
  • RDS
  • FM radio
Other features
Other features — specifications for Zenfone Selfie ZD551KL, C4.
SpecificationZenfone Selfie ZD551KLC4
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • Sensors Accelerometer For USA