alcatel OT-997D vs ZTE Blade 20

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: 47 g lighter

    OT-997D:
    143 g
    Blade 20:
    190 g
  • Width

    OT-997D: 8.6 mm narrower

    OT-997D:
    68 mm
    Blade 20:
    76.6 mm
  • Screen diagonal

    OT-997D: 2.19 in smaller diagonal

    OT-997D:
    4.3 in
    Blade 20:
    6.49 in
  • Chipset

    OT-997D:
    Mediatek MT6577 (40 nm)
    Blade 20:
    Mediatek MT6771 Helio P70 (12nm)
  • Rear camera layout

    OT-997D:
    Single
    Blade 20:
    Dual
  • Depth

    Blade 20: 2 mm thinner

    OT-997D:
    11 mm
    Blade 20:
    9 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 mm versus Blade 20
  2. 2. Blade 20

    Height:
    162.9 mm +33.1 mm versus OT-997D
    Width:
    76.6 mm +8.6 mm versus OT-997D
    Depth:
    9 mm

Weight

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

  1. 1. OT-997D

    143 g

  2. 2. Blade 20

    190 g

    +47 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. Blade 20

    Screen diagonal:
    6.49 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    103.4 cm²

Blade 20 has approximately 96.5% 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, Blade 20, compared at the same storage capacity.
StorageOT-997DBlade 20
4 GB 1 GB RAM Not recorded
128 GB Not recorded 4 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. Blade 20

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses shared SIM 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. Blade 20

    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. Blade 20

Everyday essentials
Everyday essentials — specifications for OT-997D, Blade 20.
SpecificationOT-997DBlade 20
Dimensions (HxWxD)
  • 129.8 Х 68 Х 11 mm
  • 162.9 Х 76.6 Х 9 mm
Weight
  • 143 g
  • 190 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4.3" inch
  • 6.49" inch
Screen resolution
  • 480 x 800 px
  • 720 x 1560 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 1 GB RAM
  • 128GB 4GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB (uses shared SIM 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 9.0 (Pie)
Chipset
  • Mediatek MT6577 (40 nm)
  • Mediatek MT6771 Helio P70 (12nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for OT-997D, Blade 20.
SpecificationOT-997DBlade 20
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 52.6 cm2
  • 103.4 cm2
Screen format
  • 5:3 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 59.6%
  • 82.9%
PPI /points per inch/
  • 217 PPI
  • 265 PPI
Camera and Video
Camera and Video — specifications for OT-997D, Blade 20.
SpecificationOT-997DBlade 20
Rear camera, main
  • 8 MP
  • Single
  • 16 MP
  • Dual
Camera specs
  • 8 MP
  • AF
  • 16 MP
  • f/2.0
  • PDAF -8 MP
  • 12mm (ultrawide) -2 MP
  • depth sensor
Functions
  • LED flash
  • LED flash
  • HDR
  • panorama
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • VGA
  • 8 MP
  • f/2.4
Performance

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

Performance — specifications for OT-997D, Blade 20.
SpecificationOT-997DBlade 20
Processor CPU
  • Dual-core 1.0 GHz Cortex-A9
  • Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
Graphics processor GPU
  • PowerVR SGX531u
  • Mali-G72 MP3
Antutu 7 score *
  • 9320
Unknown
General specs
General specs — specifications for OT-997D, Blade 20.
SpecificationOT-997DBlade 20
Release date
  • 2012
  • July
  • 2019
  • October
Colors
  • Black
  • White
  • Turquoise
  • Magic red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 280 EUR
  • 130 EUR
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, Blade 20.
SpecificationOT-997DBlade 20
SIM card
  • Dual SIM (Mini-SIM
  • dual stand-by)
  • Hybrid 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 (unspecified)
Speed
  • HSPA 7.2/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
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, Blade 20.
SpecificationOT-997DBlade 20
Radio
  • Stereo FM radio
  • RDS
  • FM radio
  • recording
Others
  • SRS audio
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for OT-997D, Blade 20.
SpecificationOT-997DBlade 20
Dop
  • Sensors Accelerometer
  • proximity
  • compass
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast battery charging 18W