BLU J4 vs LG K11

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

    J4: 3 mm narrower

    J4:
    72.3 mm
    K11:
    75.3 mm
  • Screen diagonal

    K11: 0.2 in smaller diagonal

    J4:
    5.5 in
    K11:
    5.3 in
  • Depth

    K11: 1.3 mm thinner

    J4:
    10 mm
    K11:
    8.7 mm
  • Height

    K11: 2.3 mm shorter

    J4:
    151 mm
    K11:
    148.7 mm
  • Release year

    J4:
    2019
    K11:
    2018

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. J4

    Height:
    151 mm +2.3 mm versus K11
    Width:
    72.3 mm
    Depth:
    10 mm +1.3 mm versus K11
  2. 2. K11

    Height:
    148.7 mm
    Width:
    75.3 mm +3 mm versus J4
    Depth:
    8.7 mm

Weight

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

  1. 1. J4

    158 g

  2. 2. K11

    162 g

    +4 g versus J4

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. J4

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    78.1 cm²
  2. 2. K11

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

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 J4, K11, compared at the same storage capacity.
StorageJ4K11
32 GB 1 GB RAM Unknown
K11: Original memory entry

32 GB · 3 GB RAM - K10+ 16 GB · 2 GB RAM - K10α · K10

Practical features

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

1. J4

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

2. K11

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 512 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. J4

    2200 mAh

  2. 2. K11

    3000 mAh

    +800 mAh versus J4

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. J42. K11

Everyday essentials
Everyday essentials — specifications for J4, K11.
SpecificationJ4K11
Dimensions (HxWxD)
  • 151 Х 72.3 Х 10 mm
  • 148.7 Х 75.3 Х 8.7 mm
Weight
  • 158 g
  • 162 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 5.3" inch
Screen resolution
  • 720 x 1440 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 1GB RAM
  • 32 GB
  • 3 GB RAM - K10+ 16 GB
  • 2 GB RAM - K10α
  • K10
Memory card support
  • microSDXC
  • microSD
  • up to 512 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2200 mAh
  • Removable Li-Po
  • 3000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Android 7.1.2 (Nougat)
Chipset Unknown
  • Mediatek MT6750 (28 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for J4, K11.
SpecificationJ4K11
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 78.1 cm2
  • 77.4 cm2
Screen format
  • 18:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 71.5%
  • 69.2%
PPI /points per inch/
  • 293 PPI
  • 277 PPI
Camera and Video
Camera and Video — specifications for J4, K11.
SpecificationJ4K11
Rear camera, main
  • 8 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 13 MP or 8 MP
  • PDAF
Functions
  • LED flash
  • LED flash
  • HDR
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 8 MP
  • 8 MP or 5 MP
Performance

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

Performance — specifications for J4, K11.
SpecificationJ4K11
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Graphics processor GPU
  • Mali-400
  • Mali-T860MP2
Antutu 7 score * Unknown
  • 49256
General specs
General specs — specifications for J4, K11.
SpecificationJ4K11
Release date
  • 2019
  • October
  • 2018
  • February
Colors
  • Blue
  • Black
  • Brown
  • Aurora Black
  • Moroccan Blue
  • Terra Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 150 EUR
Body build Unknown
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for J4, K11.
SpecificationJ4K11
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
Speed
  • HSPA 21.1/5.76 Mbps
  • 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 Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.1
  • A2DP
  • LE
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for J4, K11.
SpecificationJ4K11
Radio
  • FM radio
  • FM radio
  • RDS
  • recording
Other features
Other features — specifications for J4, K11.
SpecificationJ4K11
Dop
  • Sensors Accelerometer For USA
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Also known as LG K11 in Russia
  • Italia