Lenovo K4 Note vs QMobile Noir X450

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

    Noir X450: 8 g lighter

    K4 Note:
    158 g
    Noir X450:
    150 g
  • Width

    Noir X450: 2.2 mm narrower

    K4 Note:
    76.5 mm
    Noir X450:
    74.3 mm
  • Screen diagonal

    Noir X450: 0.5 in smaller diagonal

    K4 Note:
    5.5 in
    Noir X450:
    5 in
  • Chipset

    K4 Note:
    Mediatek MT6753 (28 nm)
    Noir X450:
    Mediatek MT6582M (28 nm)
  • Depth

    Noir X450: 0.6 mm thinner

    K4 Note:
    9.2 mm
    Noir X450:
    8.6 mm
  • Height

    Noir X450: 10.8 mm shorter

    K4 Note:
    153.6 mm
    Noir X450:
    142.8 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. K4 Note

    Height:
    153.6 mm +10.8 mm versus Noir X450
    Width:
    76.5 mm +2.2 mm versus Noir X450
    Depth:
    9.2 mm +0.6 mm versus Noir X450
  2. 2. Noir X450

    Height:
    142.8 mm
    Width:
    74.3 mm
    Depth:
    8.6 mm

Weight

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

  1. 1. K4 Note

    158 g

    +8 g versus Noir X450

  2. 2. Noir X450

    150 g

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. K4 Note

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. Noir X450

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

K4 Note has approximately 21% more rectangular screen area than Noir X450.

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 K4 Note, Noir X450, compared at the same storage capacity.
StorageK4 NoteNoir X450
8 GB Unknown 1 GB RAM
K4 Note: Original memory entry

16 GB · 3 GB RAM - A7010 a488/16/32 GB · 2 GB RAM - A7010

Practical features

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

1. K4 Note

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (dedicated slot)

2. Noir X450

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 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. K4 Note

    3300 mAh

    +1350 mAh versus Noir X450

  2. 2. Noir X450

    1950 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. K4 Note2. Noir X450

Everyday essentials
Everyday essentials — specifications for K4 Note, Noir X450.
SpecificationK4 NoteNoir X450
Dimensions (HxWxD)
  • 153.6 Х 76.5 Х 9.2 mm
  • 142.8 Х 74.3 Х 8.6 mm
Weight
  • 158 g
  • 150 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.5" inch
  • 5" inch
Screen resolution
  • 1080 x 1920 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16 GB
  • 3 GB RAM - A7010 a488/16/32 GB
  • 2 GB RAM - A7010
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 256 GB (dedicated slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 3300 mAh
  • Non-removable Li-Po
  • 1950 mAh
  • Li-Ion
Operating system OS
  • Android 5.1.1 (Lollipop)
  • upgradable to 6.0 (Marshmallow)
  • Android 4.4.2 (KitKat)
Chipset
  • Mediatek MT6753 (28 nm)
  • Mediatek MT6582M (28 nm)
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for K4 Note, Noir X450.
SpecificationK4 NoteNoir X450
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 68.9 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 71.0%
  • 64.9%
PPI /points per inch/
  • 401 PPI
  • 196 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for K4 Note, Noir X450.
SpecificationK4 NoteNoir X450
Rear camera, main
  • 13 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 13 MP
  • PDAF
  • f/2.2
  • 5 MP
  • AF
Functions
  • Dual-LED dual-tone flash
  • HDR
  • panorama
  • LED flash
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 2 MP
  • Single
Specifications
  • 5 MP
  • f/2.2
  • 2 MP
Performance

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

Performance — specifications for K4 Note, Noir X450.
SpecificationK4 NoteNoir X450
Processor CPU
  • Octa-core 1.3 GHz Cortex-A53
  • Quad-core 1.3 GHz Cortex-A7
Graphics processor GPU
  • Mali-T720MP3
  • Mali-400MP2
Antutu 7 score *
  • 37456
Unknown
General specs
General specs — specifications for K4 Note, Noir X450.
SpecificationK4 NoteNoir X450
Release date
  • 2016
  • January
  • 2015
  • May
Colors
  • Black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 190 EUR
  • 160 EUR
Battery life
  • Stand by time- Up to 265 h (3G) Talking time- Up to 23 h (2G) / Up to 22 h (3G)
  • Stand by time- Up to 162 h (2G) / Up to 108 h (3G) Talking time- Up to 13 h 30 min (2G) / Up to 9 h 30 min (3G)
Body build
  • aluminum frame
  • plastic back
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for K4 Note, Noir X450.
SpecificationK4 NoteNoir X450
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM
Network
  • 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)
  • 7(2600)
  • 8(900)
  • 20(800) - A7010 LTE band 1(2100)
  • 20(800)
  • 40(2300)
  • 41(2500) - A7010 a48
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA
  • LTE Cat4 150/50 Mbps
  • HSPA 21.1/5.76 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • LE
  • 4.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.84 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for K4 Note, Noir X450.
SpecificationK4 NoteNoir X450
Radio
  • FM radio
  • recording
  • FM radio
Others
  • Dolby Atmos audio enhancement -Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for K4 Note, Noir X450.
SpecificationK4 NoteNoir X450
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Also known as: Lenovo K4 Note A7010a48
  • A7010
  • Lenovo Vibe X3 Lite
  • Sensors Accelerometer
  • proximity
  • compass