Asus Zenfone 4 Pro ZS551KL vs BLU Studio X Mini

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.

  • Display technology

    OLED versus LCD

    Zenfone 4 Pro ZS551KL:
    OLED
    Studio X Mini:
    LCD
  • Weight

    Studio X Mini: 53 g lighter

    Zenfone 4 Pro ZS551KL:
    175 g
    Studio X Mini:
    122 g
  • Width

    Studio X Mini: 9.8 mm narrower

    Zenfone 4 Pro ZS551KL:
    75.6 mm
    Studio X Mini:
    65.8 mm
  • Screen diagonal

    Studio X Mini: 1 in smaller diagonal

    Zenfone 4 Pro ZS551KL:
    5.5 in
    Studio X Mini:
    4.5 in
  • Chipset

    Zenfone 4 Pro ZS551KL:
    Qualcomm MSM8998 Snapdragon 835 (10 nm)
    Studio X Mini:
    Mediatek MT6735 (28 nm)
  • Rear camera layout

    Zenfone 4 Pro ZS551KL:
    Dual
    Studio X Mini:
    Single

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 4 Pro ZS551KL

    Height:
    156.9 mm +23.2 mm versus Studio X Mini
    Width:
    75.6 mm +9.8 mm versus Studio X Mini
    Depth:
    7.6 mm
  2. 2. Studio X Mini

    Height:
    133.7 mm
    Width:
    65.8 mm
    Depth:
    10.8 mm +3.2 mm versus Zenfone 4 Pro ZS551KL

Weight

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

  1. 1. Zenfone 4 Pro ZS551KL

    175 g

    +53 g versus Studio X Mini

  2. 2. Studio X Mini

    122 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 4 Pro ZS551KL

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

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

Zenfone 4 Pro ZS551KL has approximately 49.4% more rectangular screen area than Studio X Mini.

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 4 Pro ZS551KL, Studio X Mini, compared at the same storage capacity.
StorageZenfone 4 Pro ZS551KLStudio X Mini
8 GB Not recorded 1 GB RAM
64 GB 6 GB RAM Not recorded
128 GB 6 GB RAM Not recorded

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 4 Pro ZS551KL

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 512 GB (uses SIM 2 slot)

2. Studio X Mini

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 4 Pro ZS551KL

    3600 mAh

    +1800 mAh versus Studio X Mini

  2. 2. Studio X Mini

    1800 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 4 Pro ZS551KL2. Studio X Mini

Everyday essentials
Everyday essentials — specifications for Zenfone 4 Pro ZS551KL, Studio X Mini.
SpecificationZenfone 4 Pro ZS551KLStudio X Mini
Dimensions (HxWxD)
  • 156.9 Х 75.6 Х 7.6 mm
  • 133.7 Х 65.8 Х 10.8 mm
Weight
  • 175 g
  • 122 g
Technology
  • AMOLED
  • IPS LCD
Screen size
  • 5.5" inch
  • 4.5" inch
Screen resolution
  • 1080 x 1920 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64/128 GB
  • 6 GB RAM
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 512 GB (uses SIM 2 slot)
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 3600 mAh
  • Non-removable Li-Ion
  • 1800 mAh
  • Removable Li-Po
Operating system OS
  • Android 7.1.1 (Nougat)
  • upgradable to Android 8 (Oreo); ZenUI 4
  • Android 5.1 (Lollipop)
Chipset
  • Qualcomm MSM8998 Snapdragon 835 (10 nm)
  • Mediatek MT6735 (28 nm)
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Zenfone 4 Pro ZS551KL, Studio X Mini.
SpecificationZenfone 4 Pro ZS551KLStudio X Mini
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 55.8 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 70.3%
  • 63.4%
PPI /points per inch/
  • 401 PPI
  • 218 PPI
Screen protection
  • Corning Gorilla Glass 5
Unknown
Camera and Video
Camera and Video — specifications for Zenfone 4 Pro ZS551KL, Studio X Mini.
SpecificationZenfone 4 Pro ZS551KLStudio X Mini
Rear camera, main
  • 12 MP
  • Dual
  • 5 MP
  • Single
Camera specs
  • 12 MP
  • f/1.7
  • 25mm (wide)
  • 1/2.55''
  • 1.4µm
  • 4-axis OIS
  • dual pixel PDAF & laser AF -16 MP
  • 50mm (telephoto)
  • 1/3.1''
  • 1.0µm
  • 2x optical zoom
  • AF
  • 5 MP
  • f/2.8
  • 1/4''
  • AF
Functions
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • 720p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 8 MP
  • f/1.9
  • 1/3.2''
  • 22mm (wide)
  • 1.4µm
  • PDAF
  • VGA
Performance
Performance — specifications for Zenfone 4 Pro ZS551KL, Studio X Mini.
SpecificationZenfone 4 Pro ZS551KLStudio X Mini
Processor CPU
  • Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)
  • Quad-core 1.0 GHz Cortex-A53
Graphics processor GPU
  • Adreno 540
  • Mali-T720
General specs
General specs — specifications for Zenfone 4 Pro ZS551KL, Studio X Mini.
SpecificationZenfone 4 Pro ZS551KLStudio X Mini
Release date
  • 2017
  • August
  • 2016
  • March
Colors
  • Moonlight White
  • Pure Black
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 390 EUR
Unknown
Battery life
  • Talking time- Up to 27 h 30 min (3G)
  • Stand by time- Up to 700 h (2G) / Up to 600 h (3G) Talking time- Up to 23 h (2G) / Up to 14 h (3G)
Body build
  • Front/back glass (Gorilla Glass 5) & aluminum frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Zenfone 4 Pro ZS551KL, Studio X Mini.
SpecificationZenfone 4 Pro ZS551KLStudio X Mini
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 17(700)
  • 19(800)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) - Global
  • Taiwan LTE band 1(2100)
  • 12(700)
  • 18(800)
  • 26(850)
  • 29(700)
  • 30(2300)
  • 41(2500) - US
  • Canada
  • Brazil LTE band 1(2100)
  • 41(2500) - India
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 1700(AWS) / 1900 / 2100 - S0150UU HSDPA 850 / 1900 / 2100 - S0151UU -4G - LTE band 2(1900)
  • 4(1700/2100)
  • 7(2600)
  • 12(700)
  • 17(700) - S0150UU LTE band 2(1900)
  • 3(1800)
  • 28(700) - S0151UU
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat12 600/150 or 100 Mbps
  • HSPA 21.1/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • Yes
  • with A-GPS
USB
  • Type-C 1.0 reversible connector
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • EDR
  • LE
  • aptX
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for Zenfone 4 Pro ZS551KL, Studio X Mini.
SpecificationZenfone 4 Pro ZS551KLStudio X Mini
Radio
  • FM radio
  • Stereo FM radio
Others
  • 24-bit/192kHz audio -DTS sound -Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for Zenfone 4 Pro ZS551KL, Studio X Mini.
SpecificationZenfone 4 Pro ZS551KLStudio X Mini
Dop
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • color spectrum
  • Infrared port - Fast battery charging: 50% in 32 min
  • Sensors Accelerometer
  • proximity