Asus Zenfone 7 Pro ZS671KS vs Allview A4 Duo

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

    A4 Duo: 119.4 g lighter

    Zenfone 7 Pro ZS671KS:
    230 g
    A4 Duo:
    110.6 g
  • Width

    A4 Duo: 14.1 mm narrower

    Zenfone 7 Pro ZS671KS:
    77.3 mm
    A4 Duo:
    63.2 mm
  • Screen diagonal

    A4 Duo: 3.17 in smaller diagonal

    Zenfone 7 Pro ZS671KS:
    6.67 in
    A4 Duo:
    3.5 in
  • Rear camera layout

    Zenfone 7 Pro ZS671KS:
    Triple
    A4 Duo:
    Single
  • Depth

    Zenfone 7 Pro ZS671KS: 2.4 mm thinner

    Zenfone 7 Pro ZS671KS:
    9.6 mm
    A4 Duo:
    12 mm
  • Height

    A4 Duo: 49 mm shorter

    Zenfone 7 Pro ZS671KS:
    165.1 mm
    A4 Duo:
    116.1 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. Zenfone 7 Pro ZS671KS

    Height:
    165.1 mm +49 mm versus A4 Duo
    Width:
    77.3 mm +14.1 mm versus A4 Duo
    Depth:
    9.6 mm
  2. 2. A4 Duo

    Height:
    116.1 mm
    Width:
    63.2 mm
    Depth:
    12 mm +2.4 mm versus Zenfone 7 Pro ZS671KS

Weight

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

  1. 1. Zenfone 7 Pro ZS671KS

    230 g

    +119.4 g versus A4 Duo

  2. 2. A4 Duo

    110.6 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 7 Pro ZS671KS

    Screen diagonal:
    6.67 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    107.4 cm²
  2. 2. A4 Duo

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²

Zenfone 7 Pro ZS671KS has approximately 194.5% more rectangular screen area than A4 Duo.

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 7 Pro ZS671KS, A4 Duo, compared at the same storage capacity.
StorageZenfone 7 Pro ZS671KSA4 Duo
256 GB 8 GB RAM Unknown
A4 Duo: Original memory entry

512 MB RAM - Liquid M2208 GB

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 7 Pro ZS671KS

NFC:
Yes
Headphone jack:
No
Memory card support:
See details microSDXC (dedicated slot)

2. A4 Duo

NFC:
See details Super AMOLED
Headphone jack:
Yes
Memory card support:
See details panorama

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 7 Pro ZS671KS

    5000 mAh

    +3800 mAh versus A4 Duo

  2. 2. A4 Duo

    1200 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 7 Pro ZS671KS2. A4 Duo

Everyday essentials
Everyday essentials — specifications for Zenfone 7 Pro ZS671KS, A4 Duo.
SpecificationZenfone 7 Pro ZS671KSA4 Duo
Dimensions (HxWxD)
  • 165.1 Х 77.3 Х 9.6 mm
  • 116.1 Х 63.2 Х 12 mm
Weight
  • 230 g
  • 110.6 g
Technology
  • Super AMOLED
  • TFT
Screen size
  • 6.67" inc
  • 3.5" inch
Screen resolution
  • 1080 x 2400 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 256GB 8GB RAM
  • 512 MB RAM - Liquid M2208 GB
Memory card support
  • microSDXC (dedicated slot)
  • panorama
Battery Capacity is not battery life. No endurance test is implied.
  • 5000 mAh
  • Li-Po
  • non-removable
  • 1200 mAh
  • Removable Li-Ion
Operating system OS
  • Android 10
  • ZenUI 7
  • Android 4.2 (Jelly Bean)
Chipset
  • - Qualcomm SM8250 Snapdragon 865+ (7 nm+)
Unknown
NFC
  • Yes
  • Super AMOLED
Headphone jack
  • No
  • Yes
Display
Display — specifications for Zenfone 7 Pro ZS671KS, A4 Duo.
SpecificationZenfone 7 Pro ZS671KSA4 Duo
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • Super AMOLED
Screen area
  • 107.4 cm2
  • 36.5 cm2
Screen format
  • 20:9 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 84.2%
  • 149.7 g
PPI /points per inch/ Unknown
  • 165 PPI
Screen protection
  • Corning Gorilla Glass 6
Unknown
Camera and Video

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

Camera and Video — specifications for Zenfone 7 Pro ZS671KS, A4 Duo.
SpecificationZenfone 7 Pro ZS671KSA4 Duo
Rear camera, main
  • 64 MP
  • Triple
  • 2 MP
  • Single
Camera specs
  • -64 MP
  • f/1.8
  • 26mm (wide)
  • 1/1.72''
  • 0.8µm
  • PDAF
  • OIS -8 MP
  • f/2.4
  • 80mm (telephoto)
  • OIS
  • 3x optical zoom -12 MP
  • f/2.2
  • 113˚
  • 17mm (ultrawide)
  • 1/2.55''
  • 1.4µm
  • dual pixel PDAF
  • 2 MP
Functions
  • Dual-LED flash
  • HDR
  • auto panorama
Unknown
Video
  • 8K@30fps
  • 4K@30/60/120fps
  • 1080p@30/60/240fps
  • 720p@480fps; gyro-EIS
  • HDR
  • Yes
Front camera, selfie
  • 64 MP
  • Triple
  • 0 MP,
Specifications
  • Motorized flip-up
  • uses main camera
  • Super AMOLED
DxOMark Main Score *
  • 115
Unknown
DxOMark Photo *
  • 104
Unknown
DxOMark Video *
  • 96
Unknown
DxOMark Selfie Score *
  • 101
Unknown
Performance

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

Performance — specifications for Zenfone 7 Pro ZS671KS, A4 Duo.
SpecificationZenfone 7 Pro ZS671KSA4 Duo
Processor CPU
  • - Octa-core (1x3.1 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.8 GHz Kryo 585)
  • Dual-core 1.0 GHz Cotex-A7
Graphics processor GPU
  • - Adreno 650
  • Mali-400MP2 Z525 -Mali-T720MP2 Z528
Antutu 7 score * Unknown
  • 11698
General specs
General specs — specifications for Zenfone 7 Pro ZS671KS, A4 Duo.
SpecificationZenfone 7 Pro ZS671KSA4 Duo
Release date
  • 2020
  • August 26
  • 2013
  • November
Colors
  • Aurora Black
  • Pastel White
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 80 EUR
Battery life Unknown
  • Stand by time- Up to 200 h Talking time- Up to 8 h 20 min
Body build
  • Glass front (Gorilla Glass 6)
  • glass back (Gorilla Glass 3)
  • aluminum frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Zenfone 7 Pro ZS671KS, A4 Duo.
SpecificationZenfone 7 Pro ZS671KSA4 Duo
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual 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) / 1900 / 2100 -4G - 1
  • 2
  • 3
  • 4
  • 5
  • 7
  • 8
  • 12
  • 17
  • 18
  • 19
  • 20
  • 26
  • 28
  • 29
  • 38
  • 39
  • 40
  • 41 -5G - 1
  • 77
  • 78 SA/NSA
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (5CA) Cat19 1800/150 Mbps
  • 5G 3.6 Gbps DL
  • HSPA 42.2/5.76 Mbps
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac/6
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi Direct
GPS
  • Yes
  • with dual-band A-GPS
  • GLONASS
  • GALILEO
  • BDS
  • QZSS
  • NavIC
  • panorama
USB
  • Type-C 1.0 reversible connector
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • aptX Adaptive
  • 4.0
  • A2DP
  • EDR
Music and Audio
Music and Audio — specifications for Zenfone 7 Pro ZS671KS, A4 Duo.
SpecificationZenfone 7 Pro ZS671KSA4 Duo
Radio
  • No
  • FM radio
Others
  • - HDR10+ -90Hz refresh rate -700 nits typ. brightness
  • - 24-bit/192kHz audio
Unknown
Other features
Other features — specifications for Zenfone 7 Pro ZS671KS, A4 Duo.
SpecificationZenfone 7 Pro ZS671KSA4 Duo
Dop
  • - Sensors - Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast charging 30W
  • 60% in 34 min
  • 100% in 93 min -USB Power Delivery 3.0 -Reverse charging
  • Sensors Accelerometer
  • proximity