Celkon Q450 vs Plum Coach Plus

Compare recorded specifications, size and practical differences.

+ Add a third phone

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

    Q450: 103 g lighter

    Q450:
    147 g
    Coach Plus:
    250 g
  • Width

    Q450: 20.3 mm narrower

    Q450:
    67.7 mm
    Coach Plus:
    88 mm
  • Screen diagonal

    Q450: 1.5 in smaller diagonal

    Q450:
    4.5 in
    Coach Plus:
    6 in
  • Chipset

    Q450:
    Spreadtrum 7731
    Coach Plus:
    Mediatek MT8312 (28 nm)
  • Depth

    Q450: 1.5 mm thinner

    Q450:
    9.7 mm
    Coach Plus:
    11.2 mm
  • Height

    Q450: 33 mm shorter

    Q450:
    135 mm
    Coach Plus:
    168 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. Q450

    Height:
    135 mm
    Width:
    67.7 mm
    Depth:
    9.7 mm
  2. 2. Coach Plus

    Height:
    168 mm +33 mm versus Q450
    Width:
    88 mm +20.3 mm versus Q450
    Depth:
    11.2 mm +1.5 mm versus Q450

Weight

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

  1. 1. Q450

    147 g

  2. 2. Coach Plus

    250 g

    +103 g versus Q450

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. Q450

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    57.6 cm²
  2. 2. Coach Plus

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

Coach Plus has approximately 72.2% more rectangular screen area than Q450.

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.

Q450: Original memory entry

4 GB · 512 MB RAM

Coach Plus: Original memory entry

4 GB · 512 MB 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. Q450

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

2. Coach Plus

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 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. Q450

    1800 mAh

  2. 2. Coach Plus

    2600 mAh

    +800 mAh versus Q450

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. Q4502. Coach Plus

Everyday essentials
Everyday essentials — specifications for Q450, Coach Plus.
SpecificationQ450Coach Plus
Dimensions (HxWxD)
  • 135 Х 67.7 Х 9.7 mm
  • 168 Х 88 Х 11.2 mm
Weight
  • 147 g
  • 250 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 4.5" inch
  • 6" inch
Screen resolution
  • 480 x 800 px
  • 540 x 960 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1800 mAh
  • Li-Ion
  • 2600 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.4.2 (KitKat)
  • Android 4.2.2 (Jelly Bean)
Chipset
  • Spreadtrum 7731
  • Mediatek MT8312 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Q450, Coach Plus.
SpecificationQ450Coach Plus
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 57.6 cm2
  • 99.2 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 63.1%
  • 67.1%
PPI /points per inch/
  • 207 PPI
  • 184 PPI
Camera and Video
Camera and Video — specifications for Q450, Coach Plus.
SpecificationQ450Coach Plus
Rear camera, main
  • 5 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 5 MP
  • 8 MP
  • AF
Functions
  • LED flash
  • Face detection
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 2 MP
  • Single
  • 2 MP
  • Single
Specifications
  • 2 MP
  • 2 MP
Performance
Performance — specifications for Q450, Coach Plus.
SpecificationQ450Coach Plus
Processor CPU
  • Quad-core 1.2 GHz
  • Dual-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • Mali-400
  • Mali-400
General specs
General specs — specifications for Q450, Coach Plus.
SpecificationQ450Coach Plus
Release date
  • 2015
  • April
  • 2014
  • May
Colors
  • Gold
  • White
  • Black
  • White
Battery life Unknown
  • Stand by time- Up to 750 h (2G) / Up to 650 h (3G) Talking time- Up to 17 h (2G) / Up to 8 h 30 min (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Q450, Coach Plus.
SpecificationQ450Coach Plus
SIM card
  • Dual SIM
  • Dual 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
  • Class 12
Edge
  • Yes
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
USB
  • microUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • 4.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.74 W/kg (head) 0.67 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Q450, Coach Plus.
SpecificationQ450Coach Plus
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for Q450, Coach Plus.
SpecificationQ450Coach Plus
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • gyro
  • proximity - Also known as Plum Z620