Allview E4 vs Asus Zenfone 4 Pro ZS551KL

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

    E4:
    LCD
    Zenfone 4 Pro ZS551KL:
    OLED
  • Weight

    E4: 45 g lighter

    E4:
    130 g
    Zenfone 4 Pro ZS551KL:
    175 g
  • Width

    E4: 5.4 mm narrower

    E4:
    70.2 mm
    Zenfone 4 Pro ZS551KL:
    75.6 mm
  • Chipset

    E4:
    Mediatek MT6753 (28 nm)
    Zenfone 4 Pro ZS551KL:
    Qualcomm MSM8998 Snapdragon 835 (10 nm)
  • Rear camera layout

    E4:
    Single
    Zenfone 4 Pro ZS551KL:
    Dual
  • Depth

    Zenfone 4 Pro ZS551KL: 1 mm thinner

    E4:
    8.6 mm
    Zenfone 4 Pro ZS551KL:
    7.6 mm

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. E4

    Height:
    140.7 mm
    Width:
    70.2 mm
    Depth:
    8.6 mm +1 mm versus Zenfone 4 Pro ZS551KL
  2. 2. Zenfone 4 Pro ZS551KL

    Height:
    156.9 mm +16.2 mm versus E4
    Width:
    75.6 mm +5.4 mm versus E4
    Depth:
    7.6 mm

Weight

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

  1. 1. E4

    130 g

  2. 2. Zenfone 4 Pro ZS551KL

    175 g

    +45 g versus E4

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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. E4

    E4: Screen geometry unavailable or conflicting.

  2. 2. Zenfone 4 Pro ZS551KL

    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 E4, Zenfone 4 Pro ZS551KL, compared at the same storage capacity.
StorageE4Zenfone 4 Pro ZS551KL
16 GB 2 GB RAM Not recorded
64 GB Not recorded 6 GB RAM
128 GB Not recorded 6 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. E4

NFC:
See details Super AMOLED
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot)

2. Zenfone 4 Pro ZS551KL

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 512 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. E4

    2100 mAh

  2. 2. Zenfone 4 Pro ZS551KL

    3600 mAh

    +1500 mAh versus E4

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. E42. Zenfone 4 Pro ZS551KL

Everyday essentials
Everyday essentials — specifications for E4, Zenfone 4 Pro ZS551KL.
SpecificationE4Zenfone 4 Pro ZS551KL
Dimensions (HxWxD)
  • 140.7 Х 70.2 Х 8.6 mm
  • 156.9 Х 75.6 Х 7.6 mm
Weight
  • 130 g
  • 175 g
Technology
  • IPS LCD
  • AMOLED
Screen size
  • 5.5" inch
  • 5.5" inch
Screen resolution
  • 720 x 1280 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16 GB
  • 2 GB RAM
  • 64/128 GB
  • 6 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 512 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2100 mAh
  • Removable Li-Po
  • 3600 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 5.1 (Lollipop)
  • Android 7.1.1 (Nougat)
  • upgradable to Android 8 (Oreo); ZenUI 4
Chipset
  • Mediatek MT6753 (28 nm)
  • Qualcomm MSM8998 Snapdragon 835 (10 nm)
NFC
  • Super AMOLED
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for E4, Zenfone 4 Pro ZS551KL.
SpecificationE4Zenfone 4 Pro ZS551KL
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • Super AMOLED
  • 16M
Screen area
  • 68.9 cm2
  • 83.4 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 143.5 Х 69.8 Х 8 mm
  • 70.3%
PPI /points per inch/
  • 294 PPI
  • 401 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for E4, Zenfone 4 Pro ZS551KL.
SpecificationE4Zenfone 4 Pro ZS551KL
Rear camera, main
  • 13 MP
  • Single
  • 12 MP
  • Dual
Camera specs
  • 13 MP
  • AF
  • 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
Functions
  • Dual-LED flash
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 5 MP
  • 8 MP
  • f/1.9
  • 1/3.2''
  • 22mm (wide)
  • 1.4µm
  • PDAF
Performance

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

Performance — specifications for E4, Zenfone 4 Pro ZS551KL.
SpecificationE4Zenfone 4 Pro ZS551KL
Processor CPU
  • Octa-core 1.3 GHz Cortex-A53
  • Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)
Graphics processor GPU
  • Mali-T720MP3
  • Adreno 540
Antutu 7 score *
  • 23156
Unknown
General specs
General specs — specifications for E4, Zenfone 4 Pro ZS551KL.
SpecificationE4Zenfone 4 Pro ZS551KL
Release date
  • 2015
  • September
  • 2017
  • August
Colors
  • Black
  • White
  • Moonlight White
  • Pure Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 240 EUR
  • 390 EUR
Battery life
  • Stand by time- Up to 210 h Talking time- Up to 9 h 30 min
  • Talking time- Up to 27 h 30 min (3G)
Body build Unknown
  • Front/back glass (Gorilla Glass 5) & aluminum frame
Communication and Connectivity
Communication and Connectivity — specifications for E4, Zenfone 4 Pro ZS551KL.
SpecificationE4Zenfone 4 Pro ZS551KL
SIM card
  • Single SIM (Micro-SIM)Dual SIM (Micro-SIM
  • dual stand-by)
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE band 2(1900)
  • 3(1800)
  • 20(800)
  • 38(2600)
  • 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
Speed
  • HSPA 21.1/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat12 600/150 or 100 Mbps
GPRS
  • Class 12
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • GALILEO
USB
  • microUSB 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 5.0
  • A2DP
  • EDR
  • LE
  • aptX
Harmful irradiation
  • SAR EU - 1.23 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for E4, Zenfone 4 Pro ZS551KL.
SpecificationE4Zenfone 4 Pro ZS551KL
Radio
  • FM radio
  • FM radio
Others Unknown
  • 24-bit/192kHz audio -DTS sound -Active noise cancellation with dedicated mic
Other features
Other features — specifications for E4, Zenfone 4 Pro ZS551KL.
SpecificationE4Zenfone 4 Pro ZS551KL
Dop
  • Sensors Accelerometer
  • proximity
  • compass
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • color spectrum
  • Infrared port - Fast battery charging: 50% in 32 min