Asus Zenfone 4 Pro ZS551KL vs Celkon A35k Remote

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

    A35k Remote: 73 g lighter

    Zenfone 4 Pro ZS551KL:
    175 g
    A35k Remote:
    102 g
  • Width

    A35k Remote: 12.6 mm narrower

    Zenfone 4 Pro ZS551KL:
    75.6 mm
    A35k Remote:
    63 mm
  • Screen diagonal

    A35k Remote: 2 in smaller diagonal

    Zenfone 4 Pro ZS551KL:
    5.5 in
    A35k Remote:
    3.5 in
  • Rear camera layout

    Zenfone 4 Pro ZS551KL:
    Dual
    A35k Remote:
    Single
  • Depth

    Zenfone 4 Pro ZS551KL: 3.1 mm thinner

    Zenfone 4 Pro ZS551KL:
    7.6 mm
    A35k Remote:
    10.7 mm
  • Height

    A35k Remote: 37.9 mm shorter

    Zenfone 4 Pro ZS551KL:
    156.9 mm
    A35k Remote:
    119 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 4 Pro ZS551KL

    Height:
    156.9 mm +37.9 mm versus A35k Remote
    Width:
    75.6 mm +12.6 mm versus A35k Remote
    Depth:
    7.6 mm
  2. 2. A35k Remote

    Height:
    119 mm
    Width:
    63 mm
    Depth:
    10.7 mm +3.1 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

    +73 g versus A35k Remote

  2. 2. A35k Remote

    102 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. A35k Remote

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

Zenfone 4 Pro ZS551KL has approximately 128.6% more rectangular screen area than A35k Remote.

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, A35k Remote, compared at the same storage capacity.
StorageZenfone 4 Pro ZS551KLA35k Remote
64 GB 6 GB RAM Unknown
128 GB 6 GB RAM Unknown
A35k Remote: Original memory entry

512 MB · 256 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 4 Pro ZS551KL

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

2. A35k Remote

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

    +2200 mAh versus A35k Remote

  2. 2. A35k Remote

    1400 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. A35k Remote

Everyday essentials
Everyday essentials — specifications for Zenfone 4 Pro ZS551KL, A35k Remote.
SpecificationZenfone 4 Pro ZS551KLA35k Remote
Dimensions (HxWxD)
  • 156.9 Х 75.6 Х 7.6 mm
  • 119 Х 63 Х 10.7 mm
Weight
  • 175 g
  • 102 g
Technology
  • AMOLED
Unknown
Screen size
  • 5.5" inch
  • 3.5" inch
Screen resolution
  • 1080 x 1920 px
  • 320 x 480 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
  • 512 MB
  • 256 MB 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
  • 1400 mAh
  • Li-Ion
Operating system OS
  • Android 7.1.1 (Nougat)
  • upgradable to Android 8 (Oreo); ZenUI 4
  • Android 4.4.2 (KitKat)
Chipset
  • Qualcomm MSM8998 Snapdragon 835 (10 nm)
Unknown
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Zenfone 4 Pro ZS551KL, A35k Remote.
SpecificationZenfone 4 Pro ZS551KLA35k Remote
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 83.4 cm2
  • 36.5 cm2
Screen format
  • 16:9 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 70.3%
  • 48.7%
PPI /points per inch/
  • 401 PPI
  • 165 PPI
Screen protection
  • Corning Gorilla Glass 5
Unknown
Camera and Video
Camera and Video — specifications for Zenfone 4 Pro ZS551KL, A35k Remote.
SpecificationZenfone 4 Pro ZS551KLA35k Remote
Rear camera, main
  • 12 MP
  • Dual
  • 3.15 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
  • 3.15 MP
Functions
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • Yes
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, A35k Remote.
SpecificationZenfone 4 Pro ZS551KLA35k Remote
Processor CPU
  • Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)
  • 1.0 GHz
Graphics processor GPU
  • Adreno 540
Unknown
General specs
General specs — specifications for Zenfone 4 Pro ZS551KL, A35k Remote.
SpecificationZenfone 4 Pro ZS551KLA35k Remote
Release date
  • 2017
  • August
  • 2015
  • June
Colors
  • Moonlight White
  • Pure Black
  • White
  • Black
  • 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, A35k Remote.
SpecificationZenfone 4 Pro ZS551KLA35k Remote
SIM card
  • Hybrid 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) / 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 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat12 600/150 or 100 Mbps
  • Yes
  • 384 kbps
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
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • Yes
USB
  • Type-C 1.0 reversible connector
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • EDR
  • LE
  • aptX
  • 4.0
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.56 W/kg (head) 0.40 W/kg (body)
Music and Audio
Music and Audio — specifications for Zenfone 4 Pro ZS551KL, A35k Remote.
SpecificationZenfone 4 Pro ZS551KLA35k Remote
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, A35k Remote.
SpecificationZenfone 4 Pro ZS551KLA35k Remote
Dop
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • color spectrum
  • Infrared port - Fast battery charging: 50% in 32 min
  • Sensors Accelerometer
  • proximity