Celkon Millennia OCTA510 vs Oppo Ace2

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.

  • Display technology

    OLED versus LCD

    Millennia OCTA510:
    LCD
    Ace2:
    OLED
  • Weight

    Millennia OCTA510: 50 g lighter

    Millennia OCTA510:
    136 g
    Ace2:
    186 g
  • Width

    Millennia OCTA510: 4.4 mm narrower

    Millennia OCTA510:
    71 mm
    Ace2:
    75.4 mm
  • Screen diagonal

    Millennia OCTA510: 1.55 in smaller diagonal

    Millennia OCTA510:
    5 in
    Ace2:
    6.55 in
  • Chipset

    Millennia OCTA510:
    Mediatek MT6592M (28 nm)
    Ace2:
    Qualcomm SM8250 Snapdragon 865 (7 nm+)
  • Rear camera layout

    Millennia OCTA510:
    Single
    Ace2:
    Quad

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 +0.5 mm versus Ace2
  2. 2. Ace2

    Height:
    160 mm +16.5 mm versus Millennia OCTA510
    Width:
    75.4 mm +4.4 mm versus Millennia OCTA510
    Depth:
    8.6 mm

Weight

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

  1. 1. Millennia OCTA510

    136 g

  2. 2. Ace2

    186 g

    +50 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. Ace2

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

Ace2 has approximately 50.3% 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, Ace2, compared at the same storage capacity.
StorageMillennia OCTA510Ace2
8 GB 1 GB RAM Not recorded
128 GB Not recorded 8 GB RAM
256 GB Not recorded 8 / 12 GB RAM Alternative RAM configurations

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. Ace2

NFC:
Yes
Headphone jack:
No
Memory card support:
No

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. Ace2

    4000 mAh

    +2000 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. Ace2

Everyday essentials
Everyday essentials — specifications for Millennia OCTA510, Ace2.
SpecificationMillennia OCTA510Ace2
Dimensions (HxWxD)
  • 143.5 Х 71 Х 9.1 mm
  • 160 Х 75.4 Х 8.6 mm
Weight
  • 136 g
  • 186 g
Technology
  • IPS LCD
  • AMOLED
Screen size
  • 5" inch
  • 6.55" inch
Screen resolution
  • 720 x 1280 px
  • 1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 128GB 8GB RAM
  • 256GB 8GB RAM
  • 256GB 12GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Ion
  • 4000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.4.2 (KitKat)
  • Android 10.0; ColorOS 7.1
Chipset
  • Mediatek MT6592M (28 nm)
  • Qualcomm SM8250 Snapdragon 865 (7 nm+)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • No
Display
Display — specifications for Millennia OCTA510, Ace2.
SpecificationMillennia OCTA510Ace2
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 103.6 cm2
Screen format
  • 16:9 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 67.6%
  • 85.9%
PPI /points per inch/
  • 294 PPI
  • 402 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for Millennia OCTA510, Ace2.
SpecificationMillennia OCTA510Ace2
Rear camera, main
  • 8 MP
  • Single
  • 48 MP
  • Quad
Camera specs
  • 8 MP
  • 48 MP
  • f/1.7
  • 26mm (wide)
  • 1/2.0''
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide)
  • 1/4.0''
  • 1.12µm
  • AF -2 MP B/W
  • (depth) -2 MP
  • (depth)
Functions
  • Dual-LED flash
  • HDR
Video
  • 720p
  • 1080p@30fps
Front camera, selfie
  • 3.15 MP
  • Single
  • 16 MP
  • Single
Specifications
  • 3.15 MP
  • 16 MP
  • f/2.4
  • 29mm (wide)
  • 1/3.1''
  • 1.0µm
Performance
Performance — specifications for Millennia OCTA510, Ace2.
SpecificationMillennia OCTA510Ace2
Processor CPU
  • Octa-core 1.4 GHz Cortex-A7
  • Octa-core (1x2.84 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.8 GHz Kryo 585)
Graphics processor GPU
  • Mali-450MP4
  • Adreno 650
General specs
General specs — specifications for Millennia OCTA510, Ace2.
SpecificationMillennia OCTA510Ace2
Release date
  • 2015
  • January
  • 2020
  • April 13
Colors
  • White
  • Aurora Silver
  • Moon Rock Grey
  • Fantasy Purple
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 520 EUR
Body build Unknown
  • Glass front (Gorilla Glass 5)
  • glass back (Gorilla Glass 5)
  • aluminum frame
Communication and Connectivity
Communication and Connectivity — specifications for Millennia OCTA510, Ace2.
SpecificationMillennia OCTA510Ace2
SIM card
  • Dual SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2CDMA 800 / 1900 & TD-SCDMA -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 17(700)
  • 20(800)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) - China -5G - 5G band 1(2100)
  • 41(2500)
  • 78(3500)
  • 79(4700); SA/NSA - China
Speed
  • HSPA 21.1/5.76 Mbps
  • 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/ax
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with dual-band A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • QZSS
USB
  • microUSB 2.0
  • USB Host
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 4.0
  • A2DP
  • 5.1
  • A2DP
  • LE
  • aptX HD
Music and Audio
Music and Audio — specifications for Millennia OCTA510, Ace2.
SpecificationMillennia OCTA510Ace2
Radio
  • FM radio
Unknown
Others Unknown
  • 500 nits typ. brightness (advertised) -HDR10+ -90Hz refresh rate
Other features
Other features — specifications for Millennia OCTA510, Ace2.
SpecificationMillennia OCTA510Ace2
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast charging 65W
  • 100% in 30 min (advertised) -SuperVOOC 2.0 -Fast wireless charging 40W
  • 100% in 56 min (advertised) -Wireless reverse charging 10W