BLU Vivo X vs Celkon Millennia Hero

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 Hero: 75 g lighter

    Vivo X:
    188 g
    Millennia Hero:
    113 g
  • Width

    Millennia Hero: 12.8 mm narrower

    Vivo X:
    76.8 mm
    Millennia Hero:
    64 mm
  • Screen diagonal

    Millennia Hero: 2 in smaller diagonal

    Vivo X:
    6 in
    Millennia Hero:
    4 in
  • Rear camera layout

    Vivo X:
    Dual
    Millennia Hero:
    Single
  • Depth

    Vivo X: 2.8 mm thinner

    Vivo X:
    8.2 mm
    Millennia Hero:
    11 mm
  • Height

    Millennia Hero: 35 mm shorter

    Vivo X:
    160 mm
    Millennia Hero:
    125 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. Vivo X

    Height:
    160 mm +35 mm versus Millennia Hero
    Width:
    76.8 mm +12.8 mm versus Millennia Hero
    Depth:
    8.2 mm
  2. 2. Millennia Hero

    Height:
    125 mm
    Width:
    64 mm
    Depth:
    11 mm +2.8 mm versus Vivo X

Weight

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

  1. 1. Vivo X

    188 g

    +75 g versus Millennia Hero

  2. 2. Millennia Hero

    113 g

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. Vivo X

    Screen diagonal:
    6 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    92.9 cm²
  2. 2. Millennia Hero

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²

Vivo X has approximately 104% more rectangular screen area than Millennia Hero.

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 Vivo X, Millennia Hero, compared at the same storage capacity.
StorageVivo XMillennia Hero
8 GB Unknown 1 GB RAM
Vivo X: 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. Vivo X

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 GB

2. Millennia Hero

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

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. Vivo X

    4010 mAh

    +2310 mAh versus Millennia Hero

  2. 2. Millennia Hero

    1700 mAh

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. Vivo X2. Millennia Hero

Everyday essentials
Everyday essentials — specifications for Vivo X, Millennia Hero.
SpecificationVivo XMillennia Hero
Dimensions (HxWxD)
  • 160 Х 76.8 Х 8.2 mm
  • 125 Х 64 Х 11 mm
Weight
  • 188 g
  • 113 g
Technology
  • IPS LCD
Unknown
Screen size
  • 6" inch
  • 4" inch
Screen resolution
  • 720 x 1440 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 512GB 4GB
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 64 GB
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 4010 mAh
  • Non-removable Li-Po
  • 1700 mAh
  • Li-Ion
Operating system OS
  • Android 7.0 (Nougat)
  • Android 5.1 (Lollipop)
Chipset
  • Mediatek MT6757 Helio P20 (16 nm)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Vivo X, Millennia Hero.
SpecificationVivo XMillennia Hero
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 92.9 cm2
  • 45.5 cm2
Screen format
  • 18:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 75.6%
  • 56.9%
PPI /points per inch/
  • 268 PPI
  • 233 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for Vivo X, Millennia Hero.
SpecificationVivo XMillennia Hero
Rear camera, main
  • 13 MP
  • Dual
  • 5 MP
  • Single
Camera specs
  • 13 MP
  • 1/3''
  • 1.12µm
  • PDAF -5 MP
  • 1/5''
  • depth sensor
  • 5 MP
Functions
  • LED flash
  • LED flash
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 20 MP
  • Dual
  • 3.2 MP
  • Single
Specifications
  • 20 MP
  • 1/2.78''
  • 1.0µm 8 MP
  • 1/4''
  • 1.12µm
  • 3.2 MP
Performance

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

Performance — specifications for Vivo X, Millennia Hero.
SpecificationVivo XMillennia Hero
Processor CPU
  • Octa-core (4x2.6 GHz Cortex-A53 & 4x1.6 GHz Cortex-A53)
  • Quad-core 1.2 GHz
Graphics processor GPU
  • Mali-T880MP2
Unknown
Antutu 7 score *
  • 67152
Unknown
GeekBench 4 Single Core *
  • 845
Unknown
GeekBench 4 Multi-Core *
  • 3903
Unknown
General specs
General specs — specifications for Vivo X, Millennia Hero.
SpecificationVivo XMillennia Hero
Release date
  • 2018
  • February
  • 2015
  • August
Colors
  • Black
  • Black
  • White/Gold
  • White/Silver
  • Black/Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 300 USD
Unknown
Battery life
  • Stand by time- Up to 750 h (2G) / Up to 700 h (3G) Talking time- Up to 28 h (2G) / Up to 22 h (3G)
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Vivo X, Millennia Hero.
SpecificationVivo XMillennia Hero
SIM card
  • Hybrid Dual SIM (Micro-SIM/Nano-SIM
  • dual stand-by)
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 17(700)
  • 28(700)
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/11.5 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
  • HSPA
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • with A-GPS
  • A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • 2.0
Harmful irradiation Unknown
  • SAR EU - 0.34 W/kg (head) 0.76 W/kg (body)
Music and Audio
Music and Audio — specifications for Vivo X, Millennia Hero.
SpecificationVivo XMillennia Hero
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for Vivo X, Millennia Hero.
SpecificationVivo XMillennia Hero
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Sensors Accelerometer