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Celkon Q405 vs LG Quantum

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

    Q405: 39 g lighter

    Q405:
    137 g
    Quantum:
    176 g
  • Width

    Quantum: 4.7 mm narrower

    Q405:
    64.2 mm
    Quantum:
    59.5 mm
  • Screen diagonal

    Quantum: 0.5 in smaller diagonal

    Q405:
    4 in
    Quantum:
    3.5 in
  • Chipset

    Q405:
    Spreadtrum 7731
    Quantum:
    Qualcomm QSD8650 Snapdragon S1
  • Depth

    Q405: 5.3 mm thinner

    Q405:
    9.9 mm
    Quantum:
    15.2 mm
  • Height

    Quantum: 4.5 mm shorter

    Q405:
    124 mm
    Quantum:
    119.5 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. Q405

    Height:
    124 mm +4.5 mm versus Quantum
    Width:
    64.2 mm +4.7 mm versus Quantum
    Depth:
    9.9 mm
  2. 2. Quantum

    Height:
    119.5 mm
    Width:
    59.5 mm
    Depth:
    15.2 mm +5.3 mm versus Q405

Weight

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

  1. 1. Q405

    137 g

  2. 2. Quantum

    176 g

    +39 g versus Q405

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. Q405

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

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

Q405 has approximately 30.6% more rectangular screen area than Quantum.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

Q405: Original memory entry

4 GB · 512 MB RAM

Quantum: Original memory entry

16 GB · 512 MB RAM · 512 MB ROM

Practical features

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

1. Q405

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

2. Quantum

NFC:
Unknown
Headphone jack:
Yes
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. Q405

    1500 mAh

  2. 2. Quantum

    1500 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. Q4052. Quantum

Everyday essentials
Everyday essentials — specifications for Q405, Quantum.
SpecificationQ405Quantum
Dimensions (HxWxD)
  • 124 Х 64.2 Х 9.9 mm
  • 119.5 Х 59.5 Х 15.2 mm
Weight
  • 137 g
  • 176 g
Technology Unknown
  • TFT
Screen size
  • 4" inch
  • 3.5" inch
Screen resolution
  • 480 x 800 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 16 GB
  • 512 MB RAM
  • 512 MB ROM
Memory card support
  • microSD
  • up to 32 GB
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Li-Ion
  • 1500 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.4 (KitKat)
  • Microsoft Windows Phone 7
Chipset
  • Spreadtrum 7731
  • Qualcomm QSD8650 Snapdragon S1
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Q405, Quantum.
SpecificationQ405Quantum
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 45.5 cm2
  • 34.9 cm2
Screen format
  • 5:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 57.2%
  • 49.0%
PPI /points per inch/
  • 233 PPI
  • 267 PPI
Camera and Video
Camera and Video — specifications for Q405, Quantum.
SpecificationQ405Quantum
Rear camera, main
  • 3.15 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 3.15 MP
  • 5 MP
  • AF
Functions
  • LED flash
  • LED flash
Video
  • Yes
  • 720p
Front camera, selfie
  • 1.3 MP
  • Single
  • 0 MP,
Specifications
  • 1.3 MP
Unknown
Performance
Performance — specifications for Q405, Quantum.
SpecificationQ405Quantum
Processor CPU
  • Quad-core 1.2 GHz
  • 1.0 GHz Scorpion
Graphics processor GPU
  • Mali-400
  • Adreno 200
General specs
General specs — specifications for Q405, Quantum.
SpecificationQ405Quantum
Release date
  • 2015
  • May
  • 2010
  • October
Colors
  • Black
  • White
  • Gold
  • Blue
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 80 EUR
Battery life Unknown
  • Stand by time- Up to 350 h Talking time- Up to 6 h
Communication and Connectivity
Communication and Connectivity — specifications for Q405, Quantum.
SpecificationQ405Quantum
SIM card
  • 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
Speed
  • HSPA
  • HSPA
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 b/g/n
  • DLNA
GPS
  • Yes
  • Yes
  • with A-GPS
USB
  • microUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • 2.1
  • A2DP
Harmful irradiation
  • SAR EU - 0.25 W/kg (head) 0.55 W/kg (body)
  • SAR - 0.35 W/kg (head) 0.30 W/kg (body)
Music and Audio
Music and Audio — specifications for Q405, Quantum.
SpecificationQ405Quantum
Radio
  • FM radio
  • Stereo FM radio
Other features
Other features — specifications for Q405, Quantum.
SpecificationQ405Quantum
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • proximity
  • compass - MP4/H.264/WMV player -MP3/WAV/WMA/eAAC+ player -Organizer -Document viewer/editor -Voice memo/dial/command -Predictive text input - For AT&T