Celkon Q500 Millennium Ultra vs Xolo Q800

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

    Q800: 5.5 g lighter

    Q500 Millennium Ultra:
    149 g
    Q800:
    143.5 g
  • Width

    Q800: 4.8 mm narrower

    Q500 Millennium Ultra:
    71.8 mm
    Q800:
    67 mm
  • Screen diagonal

    Q800: 0.5 in smaller diagonal

    Q500 Millennium Ultra:
    5 in
    Q800:
    4.5 in
  • Depth

    Q500 Millennium Ultra: 1.6 mm thinner

    Q500 Millennium Ultra:
    8 mm
    Q800:
    9.6 mm
  • Height

    Q800: 10.1 mm shorter

    Q500 Millennium Ultra:
    145.6 mm
    Q800:
    135.5 mm
  • Release year

    Q500 Millennium Ultra:
    2014
    Q800:
    2013

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. Q500 Millennium Ultra

    Height:
    145.6 mm +10.1 mm versus Q800
    Width:
    71.8 mm +4.8 mm versus Q800
    Depth:
    8 mm
  2. 2. Q800

    Height:
    135.5 mm
    Width:
    67 mm
    Depth:
    9.6 mm +1.6 mm versus Q500 Millennium Ultra

Weight

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

  1. 1. Q500 Millennium Ultra

    149 g

    +5.5 g versus Q800

  2. 2. Q800

    143.5 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. Q500 Millennium Ultra

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²
  2. 2. Q800

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

Q500 Millennium Ultra has approximately 23.5% more rectangular screen area than Q800.

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 Q500 Millennium Ultra, Q800, compared at the same storage capacity.
StorageQ500 Millennium UltraQ800
4 GB Not recorded 1 GB RAM
16 GB 2 GB RAM Not recorded

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Q500 Millennium Ultra

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

2. Q800

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. Q500 Millennium Ultra

    2500 mAh

    +400 mAh versus Q800

  2. 2. Q800

    2100 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. Q500 Millennium Ultra2. Q800

Everyday essentials
Everyday essentials — specifications for Q500 Millennium Ultra, Q800.
SpecificationQ500 Millennium UltraQ800
Dimensions (HxWxD)
  • 145.6 Х 71.8 Х 8 mm
  • 135.5 Х 67 Х 9.6 mm
Weight
  • 149 g
  • 143.5 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5" inch
  • 4.5" inch
Screen resolution
  • 720 x 1280 px
  • 540 x 960 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16 GB
  • 2 GB RAM
  • 4 GB
  • 1 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.
  • 2500 mAh
  • Li-Ion
  • 2100 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.4.2 (KitKat)
  • Android 4.1.2 (Jelly Bean)
Chipset
  • Broadcom BCM23550
  • Mediatek MT6589M (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Q500 Millennium Ultra, Q800.
SpecificationQ500 Millennium UltraQ800
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 68.9 cm2
  • 55.8 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 65.9%
  • 61.5%
PPI /points per inch/
  • 294 PPI
  • 245 PPI
Camera and Video
Camera and Video — specifications for Q500 Millennium Ultra, Q800.
SpecificationQ500 Millennium UltraQ800
Rear camera, main
  • 8 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 8 MP
  • AF
Functions
  • LED flash
  • LED flash
Video
  • Yes
  • Yes
Front camera, selfie
  • 2 MP
  • Single
  • 1 MP
  • Single
Specifications
  • 2 MP
  • 1 MP
Performance
Performance — specifications for Q500 Millennium Ultra, Q800.
SpecificationQ500 Millennium UltraQ800
Processor CPU
  • Quad-core 1.2 GHz
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU Unknown
  • PowerVR SGX544
General specs
General specs — specifications for Q500 Millennium Ultra, Q800.
SpecificationQ500 Millennium UltraQ800
Release date
  • 2014
  • 2013
  • February
Colors
  • White
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 120 EUR
  • 130 EUR
Battery life
  • Stand by time- Up to 200 h (3G) Talking time- Up to 5 h (3G)
  • Stand by time- Up to 360 h (2G) / Up to 360 h (3G) Talking time- Up to 16 h (2G) / Up to 10 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Q500 Millennium Ultra, Q800.
SpecificationQ500 Millennium UltraQ800
SIM card
  • Dual SIM
  • Dual SIM (Mini-SIM)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA
  • HSPA 21.1/5.76 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 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • 4.0
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.65 W/kg (head) 0.95 W/kg (body)
Music and Audio
Music and Audio — specifications for Q500 Millennium Ultra, Q800.
SpecificationQ500 Millennium UltraQ800
Radio
  • FM radio
  • FM radio
  • recording
Other features
Other features — specifications for Q500 Millennium Ultra, Q800.
SpecificationQ500 Millennium UltraQ800
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - For India