Celkon Millennia OCTA510 vs Xiaomi Redmi 7A

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: 29 g lighter

    Millennia OCTA510:
    136 g
    Redmi 7A:
    165 g
  • Screen diagonal

    Millennia OCTA510: 0.45 in smaller diagonal

    Millennia OCTA510:
    5 in
    Redmi 7A:
    5.45 in
  • Chipset

    Millennia OCTA510:
    Mediatek MT6592M (28 nm)
    Redmi 7A:
    Qualcomm SDM439 Snapdragon 439 (12 nm)
  • Depth

    Millennia OCTA510: 0.5 mm thinner

    Millennia OCTA510:
    9.1 mm
    Redmi 7A:
    9.6 mm
  • Height

    Millennia OCTA510: 2.8 mm shorter

    Millennia OCTA510:
    143.5 mm
    Redmi 7A:
    146.3 mm
  • Release year

    Millennia OCTA510:
    2015
    Redmi 7A:
    2019

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
  2. 2. Redmi 7A

    Height:
    146.3 mm +2.8 mm versus Millennia OCTA510
    Width:
    70.4 mm
    Depth:
    9.6 mm +0.5 mm versus Millennia OCTA510

Weight

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

  1. 1. Millennia OCTA510

    136 g

  2. 2. Redmi 7A

    165 g

    +29 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. Redmi 7A

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

Redmi 7A has approximately 11.2% 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, Redmi 7A, compared at the same storage capacity.
StorageMillennia OCTA510Redmi 7A
8 GB 1 GB RAM Unknown
Redmi 7A: Original memory entry

32 GB · 2/3 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. Millennia OCTA510

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

2. Redmi 7A

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. Millennia OCTA510

    2000 mAh

  2. 2. Redmi 7A

    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. Redmi 7A

Everyday essentials
Everyday essentials — specifications for Millennia OCTA510, Redmi 7A.
SpecificationMillennia OCTA510Redmi 7A
Dimensions (HxWxD)
  • 143.5 Х 71 Х 9.1 mm
  • 146.3 Х 70.4 Х 9.6 mm
Weight
  • 136 g
  • 165 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5" inch
  • 5.45" inch
Screen resolution
  • 720 x 1280 px
  • 720 x 1440 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 32 GB
  • 2/3 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
  • 4000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.4.2 (KitKat)
  • Android 9.0 (Pie); MIUI 10.2.7
Chipset
  • Mediatek MT6592M (28 nm)
  • Qualcomm SDM439 Snapdragon 439 (12 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Millennia OCTA510, Redmi 7A.
SpecificationMillennia OCTA510Redmi 7A
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 76.7 cm2
Screen format
  • 16:9 (height:width)
  • 18:9 (height:width)
Screen to body ratio
  • 67.6%
  • 74.4%
PPI /points per inch/
  • 294 PPI
  • 295 PPI
Camera and Video
Camera and Video — specifications for Millennia OCTA510, Redmi 7A.
SpecificationMillennia OCTA510Redmi 7A
Rear camera, main
  • 8 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 8 MP
  • 13 MP
  • f/2.2
  • 1.12µm
  • PDAF - China -12 MP
  • 1/2.9''
  • 1.25µm
  • PDAF - India
Functions
  • Dual-LED flash
  • LED flash
  • HDR
Video
  • 720p
  • 1080p@30fps
Front camera, selfie
  • 3.15 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 3.15 MP
  • 13 MP
  • f/2.2
  • 1.12µm
  • PDAF - China
Performance

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

Performance — specifications for Millennia OCTA510, Redmi 7A.
SpecificationMillennia OCTA510Redmi 7A
Processor CPU
  • Octa-core 1.4 GHz Cortex-A7
  • Octa-core (2x2.0 GHz Cortex-A53 & 6x1.45 GHz Cortex A53)
Graphics processor GPU
  • Mali-450MP4
  • Adreno 505
Antutu 8 score * Unknown
  • 90664
General specs
General specs — specifications for Millennia OCTA510, Redmi 7A.
SpecificationMillennia OCTA510Redmi 7A
Release date
  • 2015
  • January
  • 2019
  • May
Colors
  • White
  • Matte Black
  • Morning blue
  • Matte Blue
  • Matte Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 100 EUR
Communication and Connectivity
Communication and Connectivity — specifications for Millennia OCTA510, Redmi 7A.
SpecificationMillennia OCTA510Redmi 7A
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 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE (unspecified)
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 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • USB Host
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • 4.2
  • A2DP
  • LE
Harmful irradiation Unknown
  • SAR - 0.74 W/kg (head) 0.79 W/kg (body)
Music and Audio
Music and Audio — specifications for Millennia OCTA510, Redmi 7A.
SpecificationMillennia OCTA510Redmi 7A
Radio
  • FM radio
  • FM radio
  • built-in antenna
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Millennia OCTA510, Redmi 7A.
SpecificationMillennia OCTA510Redmi 7A
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • proximity
  • compass - Fast battery charging 10W - China only - Splash resistant - For India and China