Asus Zenfone Selfie ZD551KL vs BLU Studio J8

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

    Zenfone Selfie ZD551KL: 13 g lighter

    Zenfone Selfie ZD551KL:
    170 g
    Studio J8:
    183 g
  • Chipset

    Zenfone Selfie ZD551KL:
    Qualcomm MSM8939 Snapdragon 615 (28 nm)
    Studio J8:
    Mediatek MT6580 (28 nm)
  • Depth

    Studio J8: 1.9 mm thinner

    Zenfone Selfie ZD551KL:
    10.8 mm
    Studio J8:
    8.9 mm
  • Release year

    Zenfone Selfie ZD551KL:
    2015
    Studio J8:
    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. Zenfone Selfie ZD551KL

    Height:
    156.5 mm
    Width:
    77.2 mm
    Depth:
    10.8 mm +1.9 mm versus Studio J8
  2. 2. Studio J8

    Height:
    155.7 mm
    Width:
    77.6 mm
    Depth:
    8.9 mm

Weight

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

  1. 1. Zenfone Selfie ZD551KL

    170 g

  2. 2. Studio J8

    183 g

    +13 g versus Zenfone Selfie ZD551KL

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. Studio J8

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

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 Zenfone Selfie ZD551KL, Studio J8, compared at the same storage capacity.
StorageZenfone Selfie ZD551KLStudio J8
8 GB Unknown 1 GB RAM
Zenfone Selfie ZD551KL: Original memory entry

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

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

2. Studio J8

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

    +500 mAh versus Studio J8

  2. 2. Studio J8

    2500 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. Studio J8

Everyday essentials
Everyday essentials — specifications for Zenfone Selfie ZD551KL, Studio J8.
SpecificationZenfone Selfie ZD551KLStudio J8
Dimensions (HxWxD)
  • 156.5 Х 77.2 Х 10.8 mm
  • 155.7 Х 77.6 Х 8.9 mm
Weight
  • 170 g
  • 183 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 5.5" inch
Screen resolution
  • 1080 x 1920 px
  • 720 x 1280 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
  • 1 GB 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
  • 2500 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 5.0 (Lollipop)
  • upgradable to 6.0 (Marshmallow); ZenUI
  • Android 7.0 (Nougat)
Chipset
  • Qualcomm MSM8939 Snapdragon 615 (28 nm)
  • Mediatek MT6580 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Zenfone Selfie ZD551KL, Studio J8.
SpecificationZenfone Selfie ZD551KLStudio J8
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 82.6 cm2
  • 83.4 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 68.3%
  • 69.0%
PPI /points per inch/
  • 403 PPI
  • 267 PPI
Screen protection
  • Corning Gorilla Glass 4
  • oleophobic coating
Unknown
Camera and Video
Camera and Video — specifications for Zenfone Selfie ZD551KL, Studio J8.
SpecificationZenfone Selfie ZD551KLStudio J8
Rear camera, main
  • 13 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 13 MP
  • f/2.0
  • 28mm (wide)
  • 1/3''
  • laser AF
  • 8 MP
Functions
  • Dual-LED dual-tone flash
  • LED flash
Video
  • 1080p@30fps
  • 1080p@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, Studio J8.
SpecificationZenfone Selfie ZD551KLStudio J8
Processor CPU
  • Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
  • Quad-core 1.3 GHz Cortex-A7
Graphics processor GPU
  • Adreno 405
  • Mali-400MP2
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, Studio J8.
SpecificationZenfone Selfie ZD551KLStudio J8
Release date
  • 2015
  • June
  • 2017
  • July
Colors
  • Pure White
  • Chic Pink
  • Aqua Blue
  • Black
  • Gold
  • Rose Gold
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 280 EUR
Unknown
Battery life Unknown
  • Stand by time- Up to 725 h (2G) / Up to 625 h (3G) Talking time- Up to 22 h (2G) / Up to 16 h (3G)
Body build
  • plastic body
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Zenfone Selfie ZD551KL, Studio J8.
SpecificationZenfone Selfie ZD551KLStudio J8
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM (Nano-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
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • USB Host
  • microUSB 2.0
  • USB Host
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 4.1
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Zenfone Selfie ZD551KL, Studio J8.
SpecificationZenfone Selfie ZD551KLStudio J8
Radio
  • FM radio
  • RDS
  • FM radio
Other features
Other features — specifications for Zenfone Selfie ZD551KL, Studio J8.
SpecificationZenfone Selfie ZD551KLStudio J8
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity