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Celkon A66 vs Oppo A83

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: 45 g lighter

    A66:
    98 g
    A83:
    143 g
  • Width

    A66: 5.9 mm narrower

    A66:
    67.2 mm
    A83:
    73.1 mm
  • Screen diagonal

    A66: 1.2 in smaller diagonal

    A66:
    4.5 in
    A83:
    5.7 in
  • Depth

    A83: 3.3 mm thinner

    A66:
    11 mm
    A83:
    7.7 mm
  • Height

    A66: 14.5 mm shorter

    A66:
    136 mm
    A83:
    150.5 mm
  • Release year

    A66:
    2014
    A83:
    2018

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 +3.3 mm versus A83
  2. 2. A83

    Height:
    150.5 mm +14.5 mm versus A66
    Width:
    73.1 mm +5.9 mm versus A66
    Depth:
    7.7 mm

Weight

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

  1. 1. A66

    98 g

  2. 2. A83

    143 g

    +45 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. A83

    Screen diagonal:
    5.7 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    83.8 cm²

A83 has approximately 50.2% 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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

A66: Original memory entry

4 GB · 512 MB RAM

A83: Original memory entry

64/32 GB · 4 GB RAM 32 GB · 3 GB RAM 16 GB · 2 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. A66

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

2. A83

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. A83

    3180 mAh

    +1180 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. A83

Everyday essentials
Everyday essentials — specifications for A66, A83.
SpecificationA66A83
Dimensions (HxWxD)
  • 136 Х 67.2 Х 11 mm
  • 150.5 Х 73.1 Х 7.7 mm
Weight
  • 98 g
  • 143 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4.5" inch
  • 5.7" inch
Screen resolution
  • 480 x 854 px
  • 720 x 1440 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 64/32 GB
  • 4 GB RAM 32 GB
  • 3 GB RAM 16 GB
  • 2 GB 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
  • 3180 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 4.1.2 (Jelly Bean)
  • Android 7.1 (Nougat); ColorOS 3.2
Chipset Unknown
  • Mediatek MT6763T Helio P23 (16 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A66, A83.
SpecificationA66A83
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 83.8 cm2
Screen format
  • 16:9 (height:width)
  • 18:9 (height:width)
Screen to body ratio
  • 61.1%
  • 76.2%
PPI /points per inch/
  • 218 PPI
  • 282 PPI
Camera and Video
Camera and Video — specifications for A66, A83.
SpecificationA66A83
Rear camera, main
  • 3.15 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 3.15 MP
  • 13 MP
  • AF
  • f/2.2
Functions
  • LED flash
  • LED flash
  • HDR
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • VGA
  • 8 MP
  • f/2.2
Performance

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

Performance — specifications for A66, A83.
SpecificationA66A83
Processor CPU
  • Dual-core 1.2 GHz
  • Octa-core 2.5 GHz Cortex-A53
Graphics processor GPU Unknown
  • Mali-G71 MP2
Antutu 7 score * Unknown
  • 80225
GeekBench 4 Single Core * Unknown
  • 863
GeekBench 4 Multi-Core * Unknown
  • 3612
General specs
General specs — specifications for A66, A83.
SpecificationA66A83
Release date
  • 2014
  • 2018
  • January
Colors
  • White
  • Black
  • Gold
  • Black
  • Red
  • Blue
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
Body build Unknown
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for A66, A83.
SpecificationA66A83
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 - China -3G - HSDPA 850 / 900 / 2100 - India
  • Thailand
  • Pakistan HSDPA 850 / 900 / 1900 / 2100 - China -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 38(2600)
  • 40(2300)
  • 41(2500) - India
  • Thailand LTE band 1(2100)
  • 7(2600)
  • 34(2000)
  • 39(1900)
  • 41(2500) - China (A83t) LTE band 1(2100)
  • 41(2500) - Pakistan
Speed Unknown
  • 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 a/b/g/n
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 2.0
  • 4.2
  • 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, A83.
SpecificationA66A83
Radio
  • FM radio
  • No
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for A66, A83.
SpecificationA66A83
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • proximity
  • compass