Asus Zenfone 4 Pro ZS551KL vs TECNO Spark Plus

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
    Spark Plus:
    LCD
  • Weight

    Zenfone 4 Pro ZS551KL: 19 g lighter

    Zenfone 4 Pro ZS551KL:
    175 g
    Spark Plus:
    194 g
  • Width

    Zenfone 4 Pro ZS551KL: 7 mm narrower

    Zenfone 4 Pro ZS551KL:
    75.6 mm
    Spark Plus:
    82.6 mm
  • Screen diagonal

    Zenfone 4 Pro ZS551KL: 0.5 in smaller diagonal

    Zenfone 4 Pro ZS551KL:
    5.5 in
    Spark Plus:
    6 in
  • Chipset

    Zenfone 4 Pro ZS551KL:
    Qualcomm MSM8998 Snapdragon 835 (10 nm)
    Spark Plus:
    Mediatek MT6580 (28 nm)
  • Rear camera layout

    Zenfone 4 Pro ZS551KL:
    Dual
    Spark Plus:
    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
    Width:
    75.6 mm
    Depth:
    7.6 mm
  2. 2. Spark Plus

    Height:
    162 mm +5.1 mm versus Zenfone 4 Pro ZS551KL
    Width:
    82.6 mm +7 mm versus Zenfone 4 Pro ZS551KL
    Depth:
    7.8 mm

Weight

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

  1. 1. Zenfone 4 Pro ZS551KL

    175 g

  2. 2. Spark Plus

    194 g

    +19 g versus Zenfone 4 Pro ZS551KL

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. Spark Plus

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

Spark Plus has approximately 19% more rectangular screen area than Zenfone 4 Pro ZS551KL.

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, Spark Plus, compared at the same storage capacity.
StorageZenfone 4 Pro ZS551KLSpark Plus
16 GB Not recorded 2 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. Spark Plus

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 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

    +200 mAh versus Spark Plus

  2. 2. Spark Plus

    3400 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. Spark Plus

Everyday essentials
Everyday essentials — specifications for Zenfone 4 Pro ZS551KL, Spark Plus.
SpecificationZenfone 4 Pro ZS551KLSpark Plus
Dimensions (HxWxD)
  • 156.9 Х 75.6 Х 7.6 mm
  • 162 Х 82.6 Х 7.8 mm
Weight
  • 175 g
  • 194 g
Technology
  • AMOLED
  • IPS LCD
Screen size
  • 5.5" inch
  • 6" 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.
  • 64/128 GB
  • 6 GB RAM
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 512 GB (uses SIM 2 slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 3600 mAh
  • Non-removable Li-Ion
  • 3400 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 7.1.1 (Nougat)
  • upgradable to Android 8 (Oreo); ZenUI 4
  • Android 7.0 (Nougat)
Chipset
  • Qualcomm MSM8998 Snapdragon 835 (10 nm)
  • Mediatek MT6580 (28 nm)
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Zenfone 4 Pro ZS551KL, Spark Plus.
SpecificationZenfone 4 Pro ZS551KLSpark Plus
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 99.2 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 70.3%
  • 74.2%
PPI /points per inch/
  • 401 PPI
  • 245 PPI
Screen protection
  • Corning Gorilla Glass 5
  • Corning Gorilla Glass (unspecified version)
Camera and Video
Camera and Video — specifications for Zenfone 4 Pro ZS551KL, Spark Plus.
SpecificationZenfone 4 Pro ZS551KLSpark Plus
Rear camera, main
  • 12 MP
  • Dual
  • 13 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
  • 13 MP
  • f/2.0
  • AF
Functions
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 8 MP
  • f/1.9
  • 1/3.2''
  • 22mm (wide)
  • 1.4µm
  • PDAF
  • 5 MP
Performance

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

Performance — specifications for Zenfone 4 Pro ZS551KL, Spark Plus.
SpecificationZenfone 4 Pro ZS551KLSpark Plus
Processor CPU
  • Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)
  • Quad-core 1.3 GHz Cortex-A7
Graphics processor GPU
  • Adreno 540
  • Mali-400MP2
Antutu 7 score * Unknown
  • 70232
General specs
General specs — specifications for Zenfone 4 Pro ZS551KL, Spark Plus.
SpecificationZenfone 4 Pro ZS551KLSpark Plus
Release date
  • 2017
  • August
  • 2017
  • June
Colors
  • Moonlight White
  • Pure Black
  • Scarlet Red
  • Champagne Gold
  • Anthracite Grey
  • Elegant Blue
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)
Unknown
Body build
  • Front/back glass (Gorilla Glass 5) & aluminum frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Zenfone 4 Pro ZS551KL, Spark Plus.
SpecificationZenfone 4 Pro ZS551KLSpark Plus
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
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat12 600/150 or 100 Mbps
  • HSPA
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
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • Yes
  • with A-GPS
USB
  • Type-C 1.0 reversible connector
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 5.0
  • A2DP
  • EDR
  • LE
  • aptX
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Zenfone 4 Pro ZS551KL, Spark Plus.
SpecificationZenfone 4 Pro ZS551KLSpark Plus
Radio
  • FM radio
  • 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, Spark Plus.
SpecificationZenfone 4 Pro ZS551KLSpark Plus
Dop
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • color spectrum
  • Infrared port - Fast battery charging: 50% in 32 min
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity