Celkon Q405 vs LG Harmony

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.

  • Width

    Q405: 12 mm narrower

    Q405:
    64.2 mm
    Harmony:
    76.2 mm
  • Screen diagonal

    Q405: 1.3 in smaller diagonal

    Q405:
    4 in
    Harmony:
    5.3 in
  • Chipset

    Q405:
    Spreadtrum 7731
    Harmony:
    Qualcomm MSM8917 Snapdragon 425 (28 nm)
  • Depth

    Harmony: 2.3 mm thinner

    Q405:
    9.9 mm
    Harmony:
    7.6 mm
  • Height

    Q405: 25.9 mm shorter

    Q405:
    124 mm
    Harmony:
    149.9 mm
  • Release year

    Q405:
    2015
    Harmony:
    2017

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
    Width:
    64.2 mm
    Depth:
    9.9 mm +2.3 mm versus Harmony
  2. 2. Harmony

    Height:
    149.9 mm +25.9 mm versus Q405
    Width:
    76.2 mm +12 mm versus Q405
    Depth:
    7.6 mm

Weight

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

  1. 1. Q405

    137 g

  2. 2. Harmony

    141.8 g

    +4.8 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. Harmony

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

Harmony has approximately 70% more rectangular screen area than Q405.

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

Harmony: Original memory entry

16 GB · 1.5 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. Q405

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

2. Harmony

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 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. Q405

    1500 mAh

  2. 2. Harmony

    2800 mAh

    +1300 mAh versus Q405

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. Harmony

Everyday essentials
Everyday essentials — specifications for Q405, Harmony.
SpecificationQ405Harmony
Dimensions (HxWxD)
  • 124 Х 64.2 Х 9.9 mm
  • 149.9 Х 76.2 Х 7.6 mm
Weight
  • 137 g
  • 141.8 g
Technology Unknown
  • IPS LCD
Screen size
  • 4" inch
  • 5.3" inch
Screen resolution
  • 480 x 800 px
  • 720 x 1280 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
  • 1.5 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 256 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Li-Ion
  • 2800 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.4 (KitKat)
  • Android 7.0 (Nougat)
Chipset
  • Spreadtrum 7731
  • Qualcomm MSM8917 Snapdragon 425 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Q405, Harmony.
SpecificationQ405Harmony
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 45.5 cm2
  • 77.4 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 57.2%
  • 67.8%
PPI /points per inch/
  • 233 PPI
  • 277 PPI
Camera and Video
Camera and Video — specifications for Q405, Harmony.
SpecificationQ405Harmony
Rear camera, main
  • 3.15 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 3.15 MP
  • 8 MP
  • AF
Functions
  • LED flash
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 1.3 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 1.3 MP
  • 5 MP
Performance
Performance — specifications for Q405, Harmony.
SpecificationQ405Harmony
Processor CPU
  • Quad-core 1.2 GHz
  • Quad-core 1.4 GHz Cortex-A53
Graphics processor GPU
  • Mali-400
  • Adreno 308
General specs
General specs — specifications for Q405, Harmony.
SpecificationQ405Harmony
Release date
  • 2015
  • May
  • 2017
  • April
Colors
  • Black
  • White
  • Gold
  • Blue
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 90 EUR
Battery life Unknown
  • Stand by time- Up to 350 h (3G) Talking time- Up to 14 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Q405, Harmony.
SpecificationQ405Harmony
SIM card
  • Dual SIM
  • Nano-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 1700(AWS) / 1900 -4G - LTE band 2(1900)
  • 4(1700/2100)
  • 5(850)
  • 12(700)
Speed
  • HSPA
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
USB
  • microUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • 4.2
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.25 W/kg (head) 0.55 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Q405, Harmony.
SpecificationQ405Harmony
Radio
  • FM radio
  • Yes
Other features
Other features — specifications for Q405, Harmony.
SpecificationQ405Harmony
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • proximity
  • compass - For Cricket Wireless