Celkon Millennia OCTA510 vs Coolpad Mega 3

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

    Millennia OCTA510: 34 g lighter

    Millennia OCTA510:
    136 g
    Mega 3:
    170 g
  • Width

    Millennia OCTA510: 6 mm narrower

    Millennia OCTA510:
    71 mm
    Mega 3:
    77 mm
  • Screen diagonal

    Millennia OCTA510: 0.5 in smaller diagonal

    Millennia OCTA510:
    5 in
    Mega 3:
    5.5 in
  • Chipset

    Millennia OCTA510:
    Mediatek MT6592M (28 nm)
    Mega 3:
    Mediatek MT6737 (28 nm)
  • Depth

    Mega 3: 0.9 mm thinner

    Millennia OCTA510:
    9.1 mm
    Mega 3:
    8.2 mm
  • Height

    Millennia OCTA510: 8.5 mm shorter

    Millennia OCTA510:
    143.5 mm
    Mega 3:
    152 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. Millennia OCTA510

    Height:
    143.5 mm
    Width:
    71 mm
    Depth:
    9.1 mm +0.9 mm versus Mega 3
  2. 2. Mega 3

    Height:
    152 mm +8.5 mm versus Millennia OCTA510
    Width:
    77 mm +6 mm versus Millennia OCTA510
    Depth:
    8.2 mm

Weight

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

  1. 1. Millennia OCTA510

    136 g

  2. 2. Mega 3

    170 g

    +34 g versus Millennia OCTA510

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. Millennia OCTA510

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²
  2. 2. Mega 3

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

Mega 3 has approximately 21% more rectangular screen area than Millennia OCTA510.

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 Millennia OCTA510, Mega 3, compared at the same storage capacity.
StorageMillennia OCTA510Mega 3
8 GB 1 GB RAM Not recorded
16 GB Not recorded 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. Millennia OCTA510

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

2. Mega 3

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 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. Millennia OCTA510

    2000 mAh

  2. 2. Mega 3

    3050 mAh

    +1050 mAh versus Millennia OCTA510

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. Millennia OCTA5102. Mega 3

Everyday essentials
Everyday essentials — specifications for Millennia OCTA510, Mega 3.
SpecificationMillennia OCTA510Mega 3
Dimensions (HxWxD)
  • 143.5 Х 71 Х 9.1 mm
  • 152 Х 77 Х 8.2 mm
Weight
  • 136 g
  • 170 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5" inch
  • 5.5" inch
Screen resolution
  • 720 x 1280 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Ion
  • 3050 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.4.2 (KitKat)
  • Android 6.0 (Marshmallow); Cool UI
Chipset
  • Mediatek MT6592M (28 nm)
  • Mediatek MT6737 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Millennia OCTA510, Mega 3.
SpecificationMillennia OCTA510Mega 3
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 83.4 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 67.6%
  • 71.3%
PPI /points per inch/
  • 294 PPI
  • 267 PPI
Screen protection Unknown
  • Scratch-resistant glass
Camera and Video
Camera and Video — specifications for Millennia OCTA510, Mega 3.
SpecificationMillennia OCTA510Mega 3
Rear camera, main
  • 8 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 8 MP
  • 8 MP
  • AF
  • f/2.2
Functions
  • Dual-LED flash
  • LED flash
Video
  • 720p
  • 720p
Front camera, selfie
  • 3.15 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 3.15 MP
  • 8 MP
  • f/2.2
Performance

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

Performance — specifications for Millennia OCTA510, Mega 3.
SpecificationMillennia OCTA510Mega 3
Processor CPU
  • Octa-core 1.4 GHz Cortex-A7
  • Quad-core 1.2 GHz Cortex-A53
Graphics processor GPU
  • Mali-450MP4
  • Mali-T860
Antutu 7 score * Unknown
  • 29322
General specs
General specs — specifications for Millennia OCTA510, Mega 3.
SpecificationMillennia OCTA510Mega 3
Release date
  • 2015
  • January
  • 2016
  • December
Colors
  • White
  • Champagne White
  • Moondust Grey
  • Gold White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 110 EUR
Battery life Unknown
  • Stand by time- Up to 200 h (3G) Talking time- Up to 8 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Millennia OCTA510, Mega 3.
SpecificationMillennia OCTA510Mega 3
SIM card
  • Dual SIM
  • Triple SIM (Nano-SIM
  • triple stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 20(800)
  • 40(2300)
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA 21.1/5.76 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
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • USB Host
  • microUSB 2.0
  • USB Host
Bluetooth
  • 4.0
  • A2DP
  • 4.0
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.68 W/kg (head) 0.66 W/kg (body)
Music and Audio
Music and Audio — specifications for Millennia OCTA510, Mega 3.
SpecificationMillennia OCTA510Mega 3
Radio
  • FM radio
  • Stereo FM radio; recording
Other features
Other features — specifications for Millennia OCTA510, Mega 3.
SpecificationMillennia OCTA510Mega 3
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • proximity - Also known as Coolpad 3503I