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BLU J4 vs LG X screen

Compare recorded specifications, size and practical differences.

BLU J4

BLU J4

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LG X screen

LG X screen

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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.

  • WeightX screen: 38 g lighterX screen: 120 g · J4: 158 g
  • Screen diagonalX screen: 0.57 in smaller diagonalX screen: 4.93 in · J4: 5.5 in
  • DepthX screen: 2.9 mm thinnerX screen: 7.1 mm · J4: 10 mm
  • HeightX screen: 8.4 mm shorterX screen: 142.6 mm · J4: 151 mm
  • Release year2019 / 2016J4: 2019 · X screen: 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.

Front
J4: 151 × 72.3 mm 1 X screen: 142.6 × 71.8 mm 2
Side
J4: 151 × 10 mm 1 X screen: 142.6 × 7.1 mm 2
  1. 1. J4
    Height
    151 mm+8.4 mm versus X screen
    Width
    72.3 mm
    Depth
    10 mm+2.9 mm versus X screen
    Weight
    158 g
  2. 2. X screen
    Height
    142.6 mm
    Width
    71.8 mm
    Depth
    7.1 mm
    Weight
    120 g
Weight

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

  1. 1. J4158 g

    +38 g versus X screen

  2. 2. X screen120 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.

Screen size
J4: 5.5 in, 18:9, About 78.1 cm² rectangular area 1 X screen: 4.93 in, 16:9, About 67 cm² rectangular area 2
  1. 1. J4 5.5 in · 18:9 About 78.1 cm² rectangular area
  2. 2. X screen 4.93 in · 16:9 About 67 cm² rectangular area

J4 has approximately 16.5% more rectangular screen area than X screen.

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 by storage capacity and phone
StorageJ4X screen
16 GB Not recorded 2 GB RAM
32 GB 1 GB RAM Not recorded

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. X screen

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

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded capacity

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

  1. 1. J42200 mAh
  2. 2. X screen2300 mAh

    +100 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. X screen

Everyday essentials
Everyday essentials
SpecificationJ4X screen
Dimensions (HxWxD)
  • 151 Х 72.3 Х 10 mm
  • 142.6 Х 71.8 Х 7.1 mm
Weight
  • 158 g
  • 120 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 4.93" inch
Screen resolution
  • 720 x 1440 px
  • 720 x 1280 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 1GB RAM
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSDXC
  • microSD
  • up to 256 GB (dedicated slot)
BatteryCapacity is not battery life. No endurance test is implied.
  • 2200 mAh
  • Removable Li-Po
  • 2300 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Android 6.0 (Marshmallow)
Chipset Unknown
  • Qualcomm MSM8916 Snapdragon 410 (28 nm)
NFC Unknown
  • Yes (market dependent)
Headphone jack
  • Yes
  • Yes
Display
Display
SpecificationJ4X screen
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 78.1 cm2
  • 67.0 cm2
Screen format
  • 18:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 71.5%
  • 65.4%
PPI /points per inch/
  • 293 PPI
  • 298 PPI
Camera and Video
Camera and Video
SpecificationJ4X screen
Rear camera, main
  • 8 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 13 MP
  • AF
  • f/2.2
Functions
  • LED flash
  • LED flash
  • panorama
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 8 MP
  • 8 MP
Performance
Performance
SpecificationJ4X screen
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Quad-core 1.2 GHz Cortex-A53
Graphics processor GPU
  • Mali-400
  • Adreno 306
Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
  • 17853
General specs
General specs
SpecificationJ4X screen
Release date
  • 2019
  • October
  • 2016
  • February
Colors
  • Blue
  • Black
  • Brown
  • Black
  • White
  • Pink Gold
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 130 EUR
Battery life Unknown
  • Stand by time- Up to 120 h (2G) / Up to 120 h (3G) Talking time- Up to 9 h (2G) / Up to 14 h (3G)
Communication and Connectivity
Communication and Connectivity
SpecificationJ4X screen
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 - K500N -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800) - K500N LTE band 3(1800)
  • 20(800)
  • 38(2600) - K500DS
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 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
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.1
  • A2DP
  • LE
  • 4.1
  • A2DP
  • LE
Harmful irradiation Unknown
  • SAR EU - 0.55 W/kg (head)
Music and Audio
Music and Audio
SpecificationJ4X screen
Radio
  • FM radio
  • FM radio
Others Unknown
  • Secondary display
  • 80 x 520 pixels
  • 1.76 inches
Other features
Other features
SpecificationJ4X screen
Dop
  • Sensors Accelerometer For USA
  • Sensors Accelerometer
  • proximity - Versions: K500N (Europe); LG X view K500DS (Russia)