Asus Zenfone Max Pro (M2) ZB631KL vs Celkon A35k

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: 73 g lighter

    Zenfone Max Pro (M2) ZB631KL:
    175 g
    A35k:
    102 g
  • Width

    A35k: 12.5 mm narrower

    Zenfone Max Pro (M2) ZB631KL:
    75.5 mm
    A35k:
    63 mm
  • Screen diagonal

    A35k: 2.76 in smaller diagonal

    Zenfone Max Pro (M2) ZB631KL:
    6.26 in
    A35k:
    3.5 in
  • Rear camera layout

    Zenfone Max Pro (M2) ZB631KL:
    Dual
    A35k:
    Single
  • Depth

    Zenfone Max Pro (M2) ZB631KL: 2.2 mm thinner

    Zenfone Max Pro (M2) ZB631KL:
    8.5 mm
    A35k:
    10.7 mm
  • Height

    A35k: 38.9 mm shorter

    Zenfone Max Pro (M2) ZB631KL:
    157.9 mm
    A35k:
    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 Max Pro (M2) ZB631KL

    Height:
    157.9 mm +38.9 mm versus A35k
    Width:
    75.5 mm +12.5 mm versus A35k
    Depth:
    8.5 mm
  2. 2. A35k

    Height:
    119 mm
    Width:
    63 mm
    Depth:
    10.7 mm +2.2 mm versus Zenfone Max Pro (M2) ZB631KL

Weight

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

  1. 1. Zenfone Max Pro (M2) ZB631KL

    175 g

    +73 g versus A35k

  2. 2. A35k

    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 Max Pro (M2) ZB631KL

    Screen diagonal:
    6.26 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    97.8 cm²
  2. 2. A35k

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

Zenfone Max Pro (M2) ZB631KL has approximately 168.2% more rectangular screen area than A35k.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

Zenfone Max Pro (M2) ZB631KL: Original memory entry

64 GB · 4/6 GB RAM 32 GB · 3 GB RAM

A35k: Original memory entry

512 MB/ 2 GB · 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 Max Pro (M2) ZB631KL

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

2. A35k

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 Max Pro (M2) ZB631KL

    5000 mAh

    +3600 mAh versus A35k

  2. 2. A35k

    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 Max Pro (M2) ZB631KL2. A35k

Everyday essentials
Everyday essentials — specifications for Zenfone Max Pro (M2) ZB631KL, A35k.
SpecificationZenfone Max Pro (M2) ZB631KLA35k
Dimensions (HxWxD)
  • 157.9 Х 75.5 Х 8.5 mm
  • 119 Х 63 Х 10.7 mm
Weight
  • 175 g
  • 102 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 6.26" inch
  • 3.5" inch
Screen resolution
  • 1080 x 2280 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 4/6 GB RAM 32 GB
  • 3 GB RAM
  • 512 MB/ 2 GB
  • 256 MB RAM
Memory card support
  • microSD
  • up to 512 GB (dedicated slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 5000 mAh
  • Non-removable Li-Po
  • 1400 mAh
  • Removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo)
  • Android 4.4.2 (KitKat)
Chipset
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
Unknown
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Zenfone Max Pro (M2) ZB631KL, A35k.
SpecificationZenfone Max Pro (M2) ZB631KLA35k
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 97.8 cm2
  • 36.5 cm2
Screen format
  • 19:9 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 82.0%
  • 48.7%
PPI /points per inch/
  • 403 PPI
  • 165 PPI
Screen protection
  • Corning Gorilla Glass 6
Unknown
Camera and Video
Camera and Video — specifications for Zenfone Max Pro (M2) ZB631KL, A35k.
SpecificationZenfone Max Pro (M2) ZB631KLA35k
Rear camera, main
  • 12 MP
  • Dual
  • 3.15 MP
  • Single
Camera specs
  • 12 MP
  • f/1.8
  • 1/2.9''
  • 1.25µm
  • PDAF -5 MP
  • f/2.4
  • 1.12µm
  • depth sensor
  • 3.15 MP
Functions
  • LED flash
  • HDR
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 13 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 13MP
  • f/2.0
  • 1.12µm
  • VGA
Performance

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

Performance — specifications for Zenfone Max Pro (M2) ZB631KL, A35k.
SpecificationZenfone Max Pro (M2) ZB631KLA35k
Processor CPU
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
  • 1.0 GHz
Graphics processor GPU
  • Adreno 512
Unknown
GeekBench 5 Single Core *
  • 291
Unknown
GeekBench 5 Multi-Core *
  • 1204
Unknown
General specs
General specs — specifications for Zenfone Max Pro (M2) ZB631KL, A35k.
SpecificationZenfone Max Pro (M2) ZB631KLA35k
Release date
  • 2018
  • December
  • 2014
Colors
  • Blue
  • Titanium
  • White
  • Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 40 EUR
Body build
  • Front glass
  • plastic body
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Zenfone Max Pro (M2) ZB631KL, A35k.
SpecificationZenfone Max Pro (M2) ZB631KLA35k
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Mini-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 40(2300)
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat9 450/50 Mbps
  • HSPA
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • QZSS
  • No
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 2.0
Harmful irradiation Unknown
  • SAR EU - 0.56 W/kg (head) 0.51 W/kg (body)
Music and Audio
Music and Audio — specifications for Zenfone Max Pro (M2) ZB631KL, A35k.
SpecificationZenfone Max Pro (M2) ZB631KLA35k
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for Zenfone Max Pro (M2) ZB631KL, A35k.
SpecificationZenfone Max Pro (M2) ZB631KLA35k
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Charging 5V/2A 10W
  • Sensors Accelerometer
  • proximity