Asus Zenfone Max Pro (M2) ZB631KL vs Micromax Ninja A91

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

    Ninja A91: 25.9 g lighter

    Zenfone Max Pro (M2) ZB631KL:
    175 g
    Ninja A91:
    149.1 g
  • Width

    Ninja A91: 9.5 mm narrower

    Zenfone Max Pro (M2) ZB631KL:
    75.5 mm
    Ninja A91:
    66 mm
  • Screen diagonal

    Ninja A91: 1.76 in smaller diagonal

    Zenfone Max Pro (M2) ZB631KL:
    6.26 in
    Ninja A91:
    4.5 in
  • Chipset

    Zenfone Max Pro (M2) ZB631KL:
    Qualcomm SDM660 Snapdragon 660 (14 nm)
    Ninja A91:
    Mediatek MT6577 (40 nm)
  • Rear camera layout

    Zenfone Max Pro (M2) ZB631KL:
    Dual
    Ninja A91:
    Single
  • Depth

    Zenfone Max Pro (M2) ZB631KL: 1.5 mm thinner

    Zenfone Max Pro (M2) ZB631KL:
    8.5 mm
    Ninja A91:
    10 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 +27.9 mm versus Ninja A91
    Width:
    75.5 mm +9.5 mm versus Ninja A91
    Depth:
    8.5 mm
  2. 2. Ninja A91

    Height:
    130 mm
    Width:
    66 mm
    Depth:
    10 mm +1.5 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

    +25.9 g versus Ninja A91

  2. 2. Ninja A91

    149.1 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. Ninja A91

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²

Zenfone Max Pro (M2) ZB631KL has approximately 75.2% more rectangular screen area than Ninja A91.

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

Ninja A91: Original memory entry

2 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 Max Pro (M2) ZB631KL

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

2. Ninja A91

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.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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. Ninja A91

Everyday essentials
Everyday essentials — specifications for Zenfone Max Pro (M2) ZB631KL, Ninja A91.
SpecificationZenfone Max Pro (M2) ZB631KLNinja A91
Dimensions (HxWxD)
  • 157.9 Х 75.5 Х 8.5 mm
  • 130 Х 66 Х 10 mm
Weight
  • 175 g
  • 149.1 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 6.26" inch
  • 4.5" inch
Screen resolution
  • 1080 x 2280 px
  • 480 x 854 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
  • 2 GB
Memory card support
  • microSD
  • up to 512 GB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 5000 mAh
  • Non-removable Li-Po
  • 0 mAh,
Operating system OS
  • Android 8.1 (Oreo)
  • Android 4.0 (Ice Cream Sandwich)
Chipset
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
  • Mediatek MT6577 (40 nm)
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Zenfone Max Pro (M2) ZB631KL, Ninja A91.
SpecificationZenfone Max Pro (M2) ZB631KLNinja A91
Touchscreen
  • capacitive touchscreen
  • touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 97.8 cm2
  • 55.8 cm2
Screen format
  • 19:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 82.0%
  • 65.0%
PPI /points per inch/
  • 403 PPI
  • 218 PPI
Screen protection
  • Corning Gorilla Glass 6
Unknown
Camera and Video
Camera and Video — specifications for Zenfone Max Pro (M2) ZB631KL, Ninja A91.
SpecificationZenfone Max Pro (M2) ZB631KLNinja A91
Rear camera, main
  • 12 MP
  • Dual
  • 5 MP
  • Single
Camera specs
  • 12 MP
  • f/1.8
  • 1/2.9''
  • 1.25µm
  • PDAF -5 MP
  • f/2.4
  • 1.12µm
  • depth sensor
  • 5 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, Ninja A91.
SpecificationZenfone Max Pro (M2) ZB631KLNinja A91
Processor CPU
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
  • Dual-core 1.0 GHz Cortex-A9
Graphics processor GPU
  • Adreno 512
  • PowerVR SGX531u
GeekBench 5 Single Core *
  • 291
Unknown
GeekBench 5 Multi-Core *
  • 1204
Unknown
General specs
General specs — specifications for Zenfone Max Pro (M2) ZB631KL, Ninja A91.
SpecificationZenfone Max Pro (M2) ZB631KLNinja A91
Release date
  • 2018
  • December
  • 2013
  • March
Colors
  • Blue
  • Titanium
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 120 EUR
Battery life Unknown
  • Stand by time- Up to 230 h Talking time- Up to 4 h 30 min
Body build
  • Front glass
  • plastic body
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Zenfone Max Pro (M2) ZB631KL, Ninja A91.
SpecificationZenfone Max Pro (M2) ZB631KLNinja A91
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 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
  • Class 10
Edge
  • Yes
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • QZSS
  • Yes
USB
  • microUSB 2.0
  • USB On-The-Go
  • Proprietary
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 3.0
Music and Audio
Music and Audio — specifications for Zenfone Max Pro (M2) ZB631KL, Ninja A91.
SpecificationZenfone Max Pro (M2) ZB631KLNinja A91
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for Zenfone Max Pro (M2) ZB631KL, Ninja A91.
SpecificationZenfone Max Pro (M2) ZB631KLNinja A91
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Charging 5V/2A 10W
  • Sensors Accelerometer