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Celkon A66 vs Oppo A11

Compare recorded specifications, size and practical differences.

+ Add a third phone

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

    A66: 97 g lighter

    A66:
    98 g
    A11:
    195 g
  • Width

    A66: 8.4 mm narrower

    A66:
    67.2 mm
    A11:
    75.6 mm
  • Screen diagonal

    A66: 2 in smaller diagonal

    A66:
    4.5 in
    A11:
    6.5 in
  • Rear camera layout

    A66:
    Single
    A11:
    Quad
  • Depth

    A11: 1.9 mm thinner

    A66:
    11 mm
    A11:
    9.1 mm
  • Height

    A66: 27.6 mm shorter

    A66:
    136 mm
    A11:
    163.6 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. A66

    Height:
    136 mm
    Width:
    67.2 mm
    Depth:
    11 mm +1.9 mm versus A11
  2. 2. A11

    Height:
    163.6 mm +27.6 mm versus A66
    Width:
    75.6 mm +8.4 mm versus A66
    Depth:
    9.1 mm

Weight

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

  1. 1. A66

    98 g

  2. 2. A11

    195 g

    +97 g versus A66

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. A66

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²
  2. 2. A11

    Screen diagonal:
    6.5 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    102 cm²

A11 has approximately 82.7% more rectangular screen area than A66.

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 A66, A11, compared at the same storage capacity.
StorageA66A11
64 GB Unknown 4 GB RAM
128 GB Unknown 4 / 6 GB RAM Alternative RAM configurations
256 GB Unknown 6 GB RAM
A66: Original memory entry

4 GB · 512 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. A66

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

2. A11

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 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. A66

    2000 mAh

  2. 2. A11

    5000 mAh

    +3000 mAh versus A66

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. A662. A11

Everyday essentials
Everyday essentials — specifications for A66, A11.
SpecificationA66A11
Dimensions (HxWxD)
  • 136 Х 67.2 Х 11 mm
  • 163.6 Х 75.6 Х 9.1 mm
Weight
  • 98 g
  • 195 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4.5" inch
  • 6.5" inch
Screen resolution
  • 480 x 854 px
  • 720 x 1600 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 64GB 4GB RAM
  • 128GB 4GB RAM
  • 128GB 6GB RAM
  • 256GB 6GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Ion
  • 5000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.1.2 (Jelly Bean)
  • Android 9.0 (Pie); ColorOS 6.0
Chipset Unknown
  • Qualcomm SDM665 Snapdragon 665 (11 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A66, A11.
SpecificationA66A11
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 102.0 cm2
Screen format
  • 16:9 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 61.1%
  • 82.5%
PPI /points per inch/
  • 218 PPI
  • 270 PPI
Camera and Video
Camera and Video — specifications for A66, A11.
SpecificationA66A11
Rear camera, main
  • 3.15 MP
  • Single
  • 48 MP
  • Quad
Camera specs
  • 3.15 MP
  • 12 MP
  • f/1.8
  • (wide)
  • PDAF -8 MP
  • f/2.3
  • 13mm (ultrawide)
  • 1/4"
  • 1.12µm
  • AF -2 MP
  • f/2.4
  • 1/5"
  • 1.75µm -2 MP
  • 1.75µm
  • depth sensor
Functions
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 16 MP
  • Single
Specifications
  • VGA
  • 8 MP
  • f/2.0
Performance

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

Performance — specifications for A66, A11.
SpecificationA66A11
Processor CPU
  • Dual-core 1.2 GHz
  • Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
Graphics processor GPU Unknown
  • Adreno 610
Antutu 8 score * Unknown
  • 172202
GeekBench 5 Single Core * Unknown
  • 484
GeekBench 5 Multi-Core * Unknown
  • 1424
General specs
General specs — specifications for A66, A11.
SpecificationA66A11
Release date
  • 2014
  • 2019
  • October
Colors
  • White
  • Black
  • Purple
  • Lake Green
  • Cloud White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 200 EUR
Battery life
  • Stand by time- Up to 160 h Talking time- Up to 5 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for A66, A11.
SpecificationA66A11
SIM card
  • Dual SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified)
Speed Unknown
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 400/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • QZSS
  • BDS
USB
  • microUSB
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 2.0
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.38 W/kg (head) 0.47 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A66, A11.
SpecificationA66A11
Radio
  • FM radio
  • FM radio
Others Unknown
  • 24-bit/192kHz audio -Active noise cancellation with dedicated mic -Dolby Atmos sound
Other features
Other features — specifications for A66, A11.
SpecificationA66A11
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Power bank/Reverse charging -Battery charging 10W