Celkon A66 vs Micromax Dual 4 E4816

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

    A66: 43 g lighter

    A66:
    98 g
    Dual 4 E4816:
    141 g
  • Width

    A66: 2.8 mm narrower

    A66:
    67.2 mm
    Dual 4 E4816:
    70 mm
  • Screen diagonal

    A66: 0.7 in smaller diagonal

    A66:
    4.5 in
    Dual 4 E4816:
    5.2 in
  • Depth

    Dual 4 E4816: 2.1 mm thinner

    A66:
    11 mm
    Dual 4 E4816:
    8.9 mm
  • Height

    A66: 7.5 mm shorter

    A66:
    136 mm
    Dual 4 E4816:
    143.5 mm
  • Release year

    A66:
    2014
    Dual 4 E4816:
    2017

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 +2.1 mm versus Dual 4 E4816
  2. 2. Dual 4 E4816

    Height:
    143.5 mm +7.5 mm versus A66
    Width:
    70 mm +2.8 mm versus A66
    Depth:
    8.9 mm

Weight

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

  1. 1. A66

    98 g

  2. 2. Dual 4 E4816

    141 g

    +43 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. Dual 4 E4816

    Screen diagonal:
    5.2 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    74.5 cm²

Dual 4 E4816 has approximately 33.5% 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

Dual 4 E4816: Original memory entry

64 GB · 512GB 4GB

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. Dual 4 E4816

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 GB (uses SIM 2 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. Dual 4 E4816

    2730 mAh

    +730 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. Dual 4 E4816

Everyday essentials
Everyday essentials — specifications for A66, Dual 4 E4816.
SpecificationA66Dual 4 E4816
Dimensions (HxWxD)
  • 136 Х 67.2 Х 11 mm
  • 143.5 Х 70 Х 8.9 mm
Weight
  • 98 g
  • 141 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4.5" inch
  • 5.2" inch
Screen resolution
  • 480 x 854 px
  • 1080 x 1920 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 GB
  • 512GB 4GB
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 128 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Ion
  • 2730 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 4.1.2 (Jelly Bean)
  • Android 7.0 (Nougat)
Chipset Unknown
  • Qualcomm MSM8940 Snapdragon 435 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A66, Dual 4 E4816.
SpecificationA66Dual 4 E4816
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 74.5 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 61.1%
  • 74.2%
PPI /points per inch/
  • 218 PPI
  • 424 PPI
Screen protection Unknown
  • Corning Gorilla Glass (unspecified version)
Camera and Video
Camera and Video — specifications for A66, Dual 4 E4816.
SpecificationA66Dual 4 E4816
Rear camera, main
  • 3.15 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 3.15 MP
  • 13 MP
  • f/2.0
  • 1/3''
  • AF -2 MP
  • depth sensor
Functions
  • LED flash
  • LED flash
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 13 MP
  • Single
Specifications
  • VGA
  • 13 MP
  • 1/3''
Performance
Performance — specifications for A66, Dual 4 E4816.
SpecificationA66Dual 4 E4816
Processor CPU
  • Dual-core 1.2 GHz
  • Octa-core 1.4 GHz Cortex-A53
Graphics processor GPU Unknown
  • Adreno 505
General specs
General specs — specifications for A66, Dual 4 E4816.
SpecificationA66Dual 4 E4816
Release date
  • 2014
  • 2017
  • July
Colors
  • White
  • Black
  • Black/Gray
  • White/Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 19000 INR
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, Dual 4 E4816.
SpecificationA66Dual 4 E4816
SIM card
  • Dual SIM
  • Hybrid Dual SIM (Micro-SIM
  • dual stand-by)
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE
Speed Unknown
  • HSPA 42.2/11.5 Mbps
  • LTE Cat4 150/50 Mbps
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
  • Yes
  • with A-GPS
USB
  • microUSB
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 2.0
  • 4.1
  • A2DP
Harmful irradiation
  • SAR EU - 0.38 W/kg (head) 0.47 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A66, Dual 4 E4816.
SpecificationA66Dual 4 E4816
Radio
  • FM radio
  • FM radio
Others Unknown
  • Dolby sound enhancement
Other features
Other features — specifications for A66, Dual 4 E4816.
SpecificationA66Dual 4 E4816
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • proximity
  • Infrared port - For India