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Celkon A66 vs Oppo A12

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: 67 g lighter

    A66:
    98 g
    A12:
    165 g
  • Width

    A66: 8.3 mm narrower

    A66:
    67.2 mm
    A12:
    75.5 mm
  • Screen diagonal

    A66: 1.72 in smaller diagonal

    A66:
    4.5 in
    A12:
    6.22 in
  • Rear camera layout

    A66:
    Single
    A12:
    Dual
  • Depth

    A12: 2.7 mm thinner

    A66:
    11 mm
    A12:
    8.3 mm
  • Height

    A66: 19.9 mm shorter

    A66:
    136 mm
    A12:
    155.9 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. A66

    Height:
    136 mm
    Width:
    67.2 mm
    Depth:
    11 mm +2.7 mm versus A12
  2. 2. A12

    Height:
    155.9 mm +19.9 mm versus A66
    Width:
    75.5 mm +8.3 mm versus A66
    Depth:
    8.3 mm

Weight

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

  1. 1. A66

    98 g

  2. 2. A12

    165 g

    +67 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. A12

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

A12 has approximately 73% 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, A12, compared at the same storage capacity.
StorageA66A12
32 GB Unknown 3 GB RAM
64 GB Unknown 4 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. A12

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC

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. A12

    4230 mAh

    +2230 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. A12

Everyday essentials
Everyday essentials — specifications for A66, A12.
SpecificationA66A12
Dimensions (HxWxD)
  • 136 Х 67.2 Х 11 mm
  • 155.9 Х 75.5 Х 8.3 mm
Weight
  • 98 g
  • 165 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4.5" inch
  • 6.22" inch
Screen resolution
  • 480 x 854 px
  • 720 x 1520 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 32GB 3GB RAM
  • 64GB 4GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSDXC
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Ion
  • 4230 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.1.2 (Jelly Bean)
  • Android 9.0 (Pie); ColorOS 6.1
Chipset Unknown
  • Mediatek MT6765 Helio P35 (12nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A66, A12.
SpecificationA66A12
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 96.6 cm2
Screen format
  • 16:9 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 61.1%
  • 82.0%
PPI /points per inch/
  • 218 PPI
  • 270 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for A66, A12.
SpecificationA66A12
Rear camera, main
  • 3.15 MP
  • Single
  • 13 MP
  • Dual
Camera specs
  • 3.15 MP
  • 13 MP
  • f/2.2
  • 1/3.1''
  • 1.12µm
  • PDAF -2 MP
  • f/2.4
  • (depth)
Functions
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 5 MP
  • Single
Specifications
  • VGA
  • 5 MP
  • f/2.0
  • 1/5''
  • 1.12µm
Performance
Performance — specifications for A66, A12.
SpecificationA66A12
Processor CPU
  • Dual-core 1.2 GHz
  • Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Graphics processor GPU Unknown
  • PowerVR GE8320
General specs
General specs — specifications for A66, A12.
SpecificationA66A12
Release date
  • 2014
  • 2020
  • April 20
Colors
  • White
  • Black
  • Blue
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 150 EUR
Battery life
  • Stand by time- Up to 160 h Talking time- Up to 5 h
Unknown
Body build Unknown
  • Glass front
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for A66, A12.
SpecificationA66A12
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 -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 38(2600)
  • 40(2300)
  • 41(2500)
Speed Unknown
  • HSPA
  • LTE-A
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
  • BDS
USB
  • microUSB
  • microUSB 2.0
  • USB On-The-Go
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, A12.
SpecificationA66A12
Radio
  • FM radio
  • FM radio
Others Unknown
  • 450 nits typ. brightness
Other features
Other features — specifications for A66, A12.
SpecificationA66A12
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass