Celkon Q450 vs Xiaomi Redmi Note 9 Pro

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

    Q450: 62 g lighter

    Q450:
    147 g
    Redmi Note 9 Pro:
    209 g
  • Width

    Q450: 9 mm narrower

    Q450:
    67.7 mm
    Redmi Note 9 Pro:
    76.7 mm
  • Screen diagonal

    Q450: 2.17 in smaller diagonal

    Q450:
    4.5 in
    Redmi Note 9 Pro:
    6.67 in
  • Chipset

    Q450:
    Spreadtrum 7731
    Redmi Note 9 Pro:
    Qualcomm SM7125 Snapdragon 720G (8 nm)
  • Rear camera layout

    Q450:
    Single
    Redmi Note 9 Pro:
    Quad
  • Depth

    Redmi Note 9 Pro: 0.9 mm thinner

    Q450:
    9.7 mm
    Redmi Note 9 Pro:
    8.8 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 +0.9 mm versus Redmi Note 9 Pro
  2. 2. Redmi Note 9 Pro

    Height:
    165.8 mm +30.8 mm versus Q450
    Width:
    76.7 mm +9 mm versus Q450
    Depth:
    8.8 mm

Weight

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

  1. 1. Q450

    147 g

  2. 2. Redmi Note 9 Pro

    209 g

    +62 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. Redmi Note 9 Pro

    Screen diagonal:
    6.67 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    107.4 cm²

Redmi Note 9 Pro has approximately 86.4% 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, Redmi Note 9 Pro, compared at the same storage capacity.
StorageQ450Redmi Note 9 Pro
64 GB Unknown 4 GB RAM
128 GB Unknown 6 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. Redmi Note 9 Pro

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC (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. Q450

    1800 mAh

  2. 2. Redmi Note 9 Pro

    5020 mAh

    +3220 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. Redmi Note 9 Pro

Everyday essentials
Everyday essentials — specifications for Q450, Redmi Note 9 Pro.
SpecificationQ450Redmi Note 9 Pro
Dimensions (HxWxD)
  • 135 Х 67.7 Х 9.7 mm
  • 165.8 Х 76.7 Х 8.8 mm
Weight
  • 147 g
  • 209 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 4.5" inch
  • 6.67" inch
Screen resolution
  • 480 x 800 px
  • 1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 64GB 4GB RAM
  • 128GB 6GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1800 mAh
  • Li-Ion
  • 5020 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.4.2 (KitKat)
  • Android 10.0; MIUI 11
Chipset
  • Spreadtrum 7731
  • Qualcomm SM7125 Snapdragon 720G (8 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Q450, Redmi Note 9 Pro.
SpecificationQ450Redmi Note 9 Pro
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 57.6 cm2
  • 107.4 cm2
Screen format
  • 5:3 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 63.1%
  • 84.5%
PPI /points per inch/
  • 207 PPI
  • 395 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for Q450, Redmi Note 9 Pro.
SpecificationQ450Redmi Note 9 Pro
Rear camera, main
  • 5 MP
  • Single
  • 48 MP
  • Quad
Camera specs
  • 5 MP
  • 48 MP
  • f/1.8
  • 26mm (wide)
  • 1/2.0"
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide)
  • 1/4.0"
  • 1.12µm -5 MP
  • f/2.4
  • (macro)
  • 1.12µm -2 MP
  • (depth)
Functions
  • LED flash
  • HDR
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 2 MP
  • Single
  • 16 MP
  • Single
Specifications
  • 2 MP
  • 16 MP
  • f/2.5
  • (wide)
  • 1.0µm
Performance

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

Performance — specifications for Q450, Redmi Note 9 Pro.
SpecificationQ450Redmi Note 9 Pro
Processor CPU
  • Quad-core 1.2 GHz
  • Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
Graphics processor GPU
  • Mali-400
  • Adreno 618
Antutu 8 score * Unknown
  • 275962
General specs
General specs — specifications for Q450, Redmi Note 9 Pro.
SpecificationQ450Redmi Note 9 Pro
Release date
  • 2015
  • April
  • 2020
  • March 12
Colors
  • Gold
  • White
  • Aurora Blue
  • Glacier white
  • Interstellar Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 160 EUR
Body build Unknown
  • Glass front (Gorilla Glass 5)
  • glass back (Gorilla Glass 5)
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for Q450, Redmi Note 9 Pro.
SpecificationQ450Redmi Note 9 Pro
SIM card
  • Dual SIM
  • Dual SIM (Nano-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 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA
  • HSPA 42.2/5.76 Mbps
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
  • NavIC
USB
  • microUSB
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 2.0
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.74 W/kg (head) 0.67 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Q450, Redmi Note 9 Pro.
SpecificationQ450Redmi Note 9 Pro
Radio
  • FM radio
  • FM radio
  • recording
Others Unknown
  • 450 nits typ. brightness (advertised)
Other features
Other features — specifications for Q450, Redmi Note 9 Pro.
SpecificationQ450Redmi Note 9 Pro
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast charging 18W - Splash-proof