alcatel OT-997D vs Oppo R15x

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: 13 g lighter

    OT-997D:
    143 g
    R15x:
    156 g
  • Width

    OT-997D: 7.5 mm narrower

    OT-997D:
    68 mm
    R15x:
    75.5 mm
  • Screen diagonal

    OT-997D: 2.1 in smaller diagonal

    OT-997D:
    4.3 in
    R15x:
    6.4 in
  • Chipset

    OT-997D:
    Mediatek MT6577 (40 nm)
    R15x:
    Qualcomm SDM660 Snapdragon 660 (14 nm)
  • Rear camera layout

    OT-997D:
    Single
    R15x:
    Dual
  • Depth

    R15x: 3.6 mm thinner

    OT-997D:
    11 mm
    R15x:
    7.4 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 +3.6 mm versus R15x
  2. 2. R15x

    Height:
    158.3 mm +28.5 mm versus OT-997D
    Width:
    75.5 mm +7.5 mm versus OT-997D
    Depth:
    7.4 mm

Weight

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

  1. 1. OT-997D

    143 g

  2. 2. R15x

    156 g

    +13 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. R15x

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

R15x has approximately 91.1% 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, R15x, compared at the same storage capacity.
StorageOT-997DR15x
4 GB 1 GB RAM Not recorded
128 GB Not recorded 6 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. R15x

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
No

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. R15x

    3600 mAh

    +1800 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. R15x

Everyday essentials
Everyday essentials — specifications for OT-997D, R15x.
SpecificationOT-997DR15x
Dimensions (HxWxD)
  • 129.8 Х 68 Х 11 mm
  • 158.3 Х 75.5 Х 7.4 mm
Weight
  • 143 g
  • 156 g
Technology
  • TFT
  • Super AMOLED
Screen size
  • 4.3" inch
  • 6.4" inch
Screen resolution
  • 480 x 800 px
  • 1080 x 2340 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 1 GB RAM
  • 128 GB
  • 6 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1800 mAh
  • Removable Li-Ion
  • 3600 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 4.0 (Ice Cream Sandwich)
  • Android 8.1 (Oreo); ColorOS 5.2
Chipset
  • Mediatek MT6577 (40 nm)
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for OT-997D, R15x.
SpecificationOT-997DR15x
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 52.6 cm2
  • 101.0 cm2
Screen format
  • 5:3 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 59.6%
  • 84.5%
PPI /points per inch/
  • 217 PPI
  • 402 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for OT-997D, R15x.
SpecificationOT-997DR15x
Rear camera, main
  • 8 MP
  • Single
  • 16 MP
  • Dual
Camera specs
  • 8 MP
  • AF
  • 16 MP
  • f/1.7
  • 1/2.8''
  • 1.12µm
  • PDAF -2 MP
  • depth sensor
Functions
  • LED flash
  • HDR
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 25 MP
  • Single
Specifications
  • VGA
  • 25 MP
  • f/2.0
  • 1/2.8''
  • 0.9μm
Performance

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

Performance — specifications for OT-997D, R15x.
SpecificationOT-997DR15x
Processor CPU
  • Dual-core 1.0 GHz Cortex-A9
  • Octa-core (4x2.0 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Graphics processor GPU
  • PowerVR SGX531u
  • Adreno 512
Antutu 7 score *
  • 9320
  • 143726
General specs
General specs — specifications for OT-997D, R15x.
SpecificationOT-997DR15x
Release date
  • 2012
  • July
  • 2018
  • October
Colors
  • Black
  • White
  • Nebula
  • Silver Green
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 280 EUR
  • 350 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
Communication and Connectivity
Communication and Connectivity — specifications for OT-997D, R15x.
SpecificationOT-997DR15x
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 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 1700(AWS) / 2100 / 900 -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 7.2/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 а/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
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, R15x.
SpecificationOT-997DR15x
Radio
  • Stereo FM radio
  • RDS
  • No
Others
  • SRS audio
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for OT-997D, R15x.
SpecificationOT-997DR15x
Dop
  • Sensors Accelerometer
  • proximity
  • compass
  • Sensors Fingerprint (under display)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 5V/2A 10W - Incomplete preliminary specifications