alcatel OT-997D vs Asus Zenfone Max Pro (M2) ZB631KL

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

    OT-997D: 32 g lighter

    OT-997D:
    143 g
    Zenfone Max Pro (M2) ZB631KL:
    175 g
  • Width

    OT-997D: 7.5 mm narrower

    OT-997D:
    68 mm
    Zenfone Max Pro (M2) ZB631KL:
    75.5 mm
  • Screen diagonal

    OT-997D: 1.96 in smaller diagonal

    OT-997D:
    4.3 in
    Zenfone Max Pro (M2) ZB631KL:
    6.26 in
  • Chipset

    OT-997D:
    Mediatek MT6577 (40 nm)
    Zenfone Max Pro (M2) ZB631KL:
    Qualcomm SDM660 Snapdragon 660 (14 nm)
  • Rear camera layout

    OT-997D:
    Single
    Zenfone Max Pro (M2) ZB631KL:
    Dual
  • Depth

    Zenfone Max Pro (M2) ZB631KL: 2.5 mm thinner

    OT-997D:
    11 mm
    Zenfone Max Pro (M2) ZB631KL:
    8.5 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. OT-997D

    Height:
    129.8 mm
    Width:
    68 mm
    Depth:
    11 mm +2.5 mm versus Zenfone Max Pro (M2) ZB631KL
  2. 2. Zenfone Max Pro (M2) ZB631KL

    Height:
    157.9 mm +28.1 mm versus OT-997D
    Width:
    75.5 mm +7.5 mm versus OT-997D
    Depth:
    8.5 mm

Weight

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

  1. 1. OT-997D

    143 g

  2. 2. Zenfone Max Pro (M2) ZB631KL

    175 g

    +32 g versus OT-997D

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. OT-997D

    Screen diagonal:
    4.3 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    52.6 cm²
  2. 2. Zenfone Max Pro (M2) ZB631KL

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

Zenfone Max Pro (M2) ZB631KL has approximately 85.9% more rectangular screen area than OT-997D.

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 OT-997D, Zenfone Max Pro (M2) ZB631KL, compared at the same storage capacity.
StorageOT-997DZenfone Max Pro (M2) ZB631KL
4 GB 1 GB RAM Unknown
Zenfone Max Pro (M2) ZB631KL: Original memory entry

64 GB · 4/6 GB RAM 32 GB · 3 GB 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. OT-997D

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot)

2. Zenfone Max Pro (M2) ZB631KL

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 512 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. OT-997D

    1800 mAh

  2. 2. Zenfone Max Pro (M2) ZB631KL

    5000 mAh

    +3200 mAh versus OT-997D

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. OT-997D2. Zenfone Max Pro (M2) ZB631KL

Everyday essentials
Everyday essentials — specifications for OT-997D, Zenfone Max Pro (M2) ZB631KL.
SpecificationOT-997DZenfone Max Pro (M2) ZB631KL
Dimensions (HxWxD)
  • 129.8 Х 68 Х 11 mm
  • 157.9 Х 75.5 Х 8.5 mm
Weight
  • 143 g
  • 175 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4.3" inch
  • 6.26" inch
Screen resolution
  • 480 x 800 px
  • 1080 x 2280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 1 GB RAM
  • 64 GB
  • 4/6 GB RAM 32 GB
  • 3 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 512 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1800 mAh
  • Removable Li-Ion
  • 5000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.0 (Ice Cream Sandwich)
  • Android 8.1 (Oreo)
Chipset
  • Mediatek MT6577 (40 nm)
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for OT-997D, Zenfone Max Pro (M2) ZB631KL.
SpecificationOT-997DZenfone Max Pro (M2) ZB631KL
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 52.6 cm2
  • 97.8 cm2
Screen format
  • 5:3 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 59.6%
  • 82.0%
PPI /points per inch/
  • 217 PPI
  • 403 PPI
Screen protection Unknown
  • Corning Gorilla Glass 6
Camera and Video
Camera and Video — specifications for OT-997D, Zenfone Max Pro (M2) ZB631KL.
SpecificationOT-997DZenfone Max Pro (M2) ZB631KL
Rear camera, main
  • 8 MP
  • Single
  • 12 MP
  • Dual
Camera specs
  • 8 MP
  • AF
  • 12 MP
  • f/1.8
  • 1/2.9''
  • 1.25µm
  • PDAF -5 MP
  • f/2.4
  • 1.12µm
  • depth sensor
Functions
  • LED flash
  • LED flash
  • HDR
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 13 MP
  • Single
Specifications
  • VGA
  • 13MP
  • f/2.0
  • 1.12µm
Performance

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

Performance — specifications for OT-997D, Zenfone Max Pro (M2) ZB631KL.
SpecificationOT-997DZenfone Max Pro (M2) ZB631KL
Processor CPU
  • Dual-core 1.0 GHz Cortex-A9
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Graphics processor GPU
  • PowerVR SGX531u
  • Adreno 512
Antutu 7 score *
  • 9320
Unknown
GeekBench 5 Single Core * Unknown
  • 291
GeekBench 5 Multi-Core * Unknown
  • 1204
General specs
General specs — specifications for OT-997D, Zenfone Max Pro (M2) ZB631KL.
SpecificationOT-997DZenfone Max Pro (M2) ZB631KL
Release date
  • 2012
  • July
  • 2018
  • December
Colors
  • Black
  • White
  • Blue
  • Titanium
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 280 EUR
Unknown
Battery life
  • Stand by time- Up to 400 h (2G) / Up to 350 h (3G) Talking time- Up to 16 h (2G) / Up to 8 h 30 min (3G)
Unknown
Body build Unknown
  • Front glass
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for OT-997D, Zenfone Max Pro (M2) ZB631KL.
SpecificationOT-997DZenfone Max Pro (M2) ZB631KL
SIM card
  • Dual SIM (Mini-SIM
  • dual stand-by)
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  • 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)
Speed
  • HSPA 7.2/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat9 450/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • QZSS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 4.0
  • A2DP
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR - 0.50 W/kg (head) 0.74 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for OT-997D, Zenfone Max Pro (M2) ZB631KL.
SpecificationOT-997DZenfone Max Pro (M2) ZB631KL
Radio
  • Stereo FM radio
  • RDS
  • FM radio
Others
  • SRS audio
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for OT-997D, Zenfone Max Pro (M2) ZB631KL.
SpecificationOT-997DZenfone Max Pro (M2) ZB631KL
Dop
  • Sensors Accelerometer
  • proximity
  • compass
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Charging 5V/2A 10W