Celkon Q450 vs Lenovo Phab2

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: 78 g lighter

    Q450:
    147 g
    Phab2:
    225 g
  • Width

    Q450: 21.8 mm narrower

    Q450:
    67.7 mm
    Phab2:
    89.5 mm
  • Screen diagonal

    Q450: 1.9 in smaller diagonal

    Q450:
    4.5 in
    Phab2:
    6.4 in
  • Chipset

    Q450:
    Spreadtrum 7731
    Phab2:
    Mediatek MT8735
  • Height

    Q450: 40 mm shorter

    Q450:
    135 mm
    Phab2:
    175 mm
  • Release year

    Q450:
    2015
    Phab2:
    2016

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. Phab2

    Height:
    175 mm +40 mm versus Q450
    Width:
    89.5 mm +21.8 mm versus Q450
    Depth:
    9.6 mm

Weight

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

  1. 1. Q450

    147 g

  2. 2. Phab2

    225 g

    +78 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. Phab2

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

Phab2 has approximately 95.9% 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.

Recorded RAM for Q450, Phab2, compared at the same storage capacity.
StorageQ450Phab2
32 GB Unknown 3 GB RAM
Q450: 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. Phab2

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256GB (uses SIM2 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. Q450

    1800 mAh

  2. 2. Phab2

    4050 mAh

    +2250 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. Phab2

Everyday essentials
Everyday essentials — specifications for Q450, Phab2.
SpecificationQ450Phab2
Dimensions (HxWxD)
  • 135 Х 67.7 Х 9.7 mm
  • 175 Х 89.5 Х 9.6 mm
Weight
  • 147 g
  • 225 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 4.5" inch
  • 6.4" 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
  • 32 GB
  • 3 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 256GB (uses SIM2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1800 mAh
  • Li-Ion
  • 4050 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 4.4.2 (KitKat)
  • Android 6.0 (Marshmallow)
Chipset
  • Spreadtrum 7731
  • Mediatek MT8735
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Q450, Phab2.
SpecificationQ450Phab2
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 57.6 cm2
  • 112.9 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 63.1%
  • 72.1%
PPI /points per inch/
  • 207 PPI
  • 229 PPI
Camera and Video
Camera and Video — specifications for Q450, Phab2.
SpecificationQ450Phab2
Rear camera, main
  • 5 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 5 MP
  • 13 MP
  • PDAF
  • f/2.0
Functions
  • LED flash
  • LED flash
  • HDR
  • panorama
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 2 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 2 MP
  • 5 MP
Performance

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

Performance — specifications for Q450, Phab2.
SpecificationQ450Phab2
Processor CPU
  • Quad-core 1.2 GHz
  • Quad-core 1.3 GHz Cortex-A53
Graphics processor GPU
  • Mali-400
  • Mali-T720MP2
Antutu 7 score * Unknown
  • 31987
General specs
General specs — specifications for Q450, Phab2.
SpecificationQ450Phab2
Release date
  • 2015
  • April
  • 2016
  • June
Colors
  • Gold
  • White
  • Gunmetal Grey
  • Champagne Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 230 EUR
Communication and Connectivity
Communication and Connectivity — specifications for Q450, Phab2.
SpecificationQ450Phab2
SIM card
  • Dual SIM
  • Hybrid Dual SIM (Micro-SIM
  • dual stand-by)
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 -3G - HSDPA 850 / 900 / 1900 / 2100 - EMEA HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 38(2600)
  • 40(2300)
  • 41(2500) - EMEA LTE band 2(1900)
  • 4(1700/2100)
  • 12(700)
  • 13(700)
  • 17(700) - USA
Speed
  • HSPA
  • HSPA
  • LTE
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/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, Phab2.
SpecificationQ450Phab2
Radio
  • FM radio
  • FM radio
Others Unknown
  • Dolby Atmos audio enhancement / Dolby Audio Capture 5.1 -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Q450, Phab2.
SpecificationQ450Phab2
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass