Asus Zenfone 7 Pro ZS671KS vs Celkon A40

Compare recorded specifications, size and practical differences.

+ Add a third phone

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

    A40: 103.5 g lighter

    Zenfone 7 Pro ZS671KS:
    230 g
    A40:
    126.5 g
  • Width

    A40: 13.3 mm narrower

    Zenfone 7 Pro ZS671KS:
    77.3 mm
    A40:
    64 mm
  • Screen diagonal

    A40: 2.67 in smaller diagonal

    Zenfone 7 Pro ZS671KS:
    6.67 in
    A40:
    4 in
  • Rear camera layout

    Zenfone 7 Pro ZS671KS:
    Triple
    A40:
    Single
  • Depth

    Zenfone 7 Pro ZS671KS: 1.2 mm thinner

    Zenfone 7 Pro ZS671KS:
    9.6 mm
    A40:
    10.8 mm
  • Height

    A40: 38.9 mm shorter

    Zenfone 7 Pro ZS671KS:
    165.1 mm
    A40:
    126.2 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 +38.9 mm versus A40
    Width:
    77.3 mm +13.3 mm versus A40
    Depth:
    9.6 mm
  2. 2. A40

    Height:
    126.2 mm
    Width:
    64 mm
    Depth:
    10.8 mm +1.2 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

    +103.5 g versus A40

  2. 2. A40

    126.5 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. A40

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²

Zenfone 7 Pro ZS671KS has approximately 135.9% more rectangular screen area than A40.

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, A40, compared at the same storage capacity.
StorageZenfone 7 Pro ZS671KSA40
256 GB 8 GB RAM Unknown
A40: Original memory entry

4 GB · 512 MB 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 7 Pro ZS671KS

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

2. A40

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated 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. Zenfone 7 Pro ZS671KS

    5000 mAh

    +3500 mAh versus A40

  2. 2. A40

    1500 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. A40

Everyday essentials
Everyday essentials — specifications for Zenfone 7 Pro ZS671KS, A40.
SpecificationZenfone 7 Pro ZS671KSA40
Dimensions (HxWxD)
  • 165.1 Х 77.3 Х 9.6 mm
  • 126.2 Х 64 Х 10.8 mm
Weight
  • 230 g
  • 126.5 g
Technology
  • Super AMOLED
  • TFT
Screen size
  • 6.67" inc
  • 4" inch
Screen resolution
  • 1080 x 2400 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 256GB 8GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSDXC (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 5000 mAh
  • Li-Po
  • non-removable
  • 1500 mAh
  • Li-Ion
Operating system OS
  • Android 10
  • ZenUI 7
  • Android 4.2.2 (Jelly Bean)
Chipset
  • - Qualcomm SM8250 Snapdragon 865+ (7 nm+)
Unknown
NFC
  • Yes
Unknown
Headphone jack
  • No
  • Yes
Display
Display — specifications for Zenfone 7 Pro ZS671KS, A40.
SpecificationZenfone 7 Pro ZS671KSA40
Touchscreen
  • capacitive touchscreen
  • touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 107.4 cm2
  • 45.5 cm2
Screen format
  • 20:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 84.2%
  • 56.4%
PPI /points per inch/ Unknown
  • 233 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, A40.
SpecificationZenfone 7 Pro ZS671KSA40
Rear camera, main
  • 64 MP
  • Triple
  • 5 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
  • 5 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
  • 0.3 MP
  • Single
Specifications
  • Motorized flip-up
  • uses main camera
  • VGA
DxOMark Main Score *
  • 115
Unknown
DxOMark Photo *
  • 104
Unknown
DxOMark Video *
  • 96
Unknown
DxOMark Selfie Score *
  • 101
Unknown
Performance
Performance — specifications for Zenfone 7 Pro ZS671KS, A40.
SpecificationZenfone 7 Pro ZS671KSA40
Processor CPU
  • - Octa-core (1x3.1 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.8 GHz Kryo 585)
  • Dual-core 1.3 GHz
Graphics processor GPU
  • - Adreno 650
Unknown
General specs
General specs — specifications for Zenfone 7 Pro ZS671KS, A40.
SpecificationZenfone 7 Pro ZS671KSA40
Release date
  • 2020
  • August 26
  • 2014
  • January
Colors
  • Aurora Black
  • Pastel White
  • White
  • Yellow
  • Blue
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, A40.
SpecificationZenfone 7 Pro ZS671KSA40
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM
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
Unknown
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (5CA) Cat19 1800/150 Mbps
  • 5G 3.6 Gbps DL
Unknown
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
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
GPS
  • Yes
  • with dual-band A-GPS
  • GLONASS
  • GALILEO
  • BDS
  • QZSS
  • NavIC
  • Yes
USB
  • Type-C 1.0 reversible connector
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • aptX Adaptive
  • 2.0
Music and Audio
Music and Audio — specifications for Zenfone 7 Pro ZS671KS, A40.
SpecificationZenfone 7 Pro ZS671KSA40
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, A40.
SpecificationZenfone 7 Pro ZS671KSA40
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