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BLU J4 vs LG G Flex2

Compare recorded specifications, size and practical differences.

BLU J4

BLU J4

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LG G Flex2

LG G Flex2

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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.

  • Display technologyOLED versus LCDJ4: LCD · G Flex2: OLED
  • WeightG Flex2: 6 g lighterG Flex2: 152 g · J4: 158 g
  • WidthJ4: 3 mm narrowerJ4: 72.3 mm · G Flex2: 75.3 mm
  • DepthG Flex2: 0.6 mm thinnerG Flex2: 9.4 mm · J4: 10 mm
  • Release year2019 / 2015J4: 2019 · G Flex2: 2015

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 G Flex2: 149.1 × 75.3 mm 2
Side
J4: 151 × 10 mm 1 G Flex2: 149.1 × 9.4 mm 2
  1. 1. J4
    Height
    151 mm
    Width
    72.3 mm
    Depth
    10 mm+0.6 mm versus G Flex2
    Weight
    158 g
  2. 2. G Flex2
    Height
    149.1 mm
    Width
    75.3 mm+3 mm versus J4
    Depth
    9.4 mm
    Weight
    152 g
Weight

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

  1. 1. J4158 g

    +6 g versus G Flex2

  2. 2. G Flex2152 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 G Flex2: 5.5 in, 16:9, About 83.4 cm² rectangular area 2
  1. 1. J4 5.5 in · 18:9 About 78.1 cm² rectangular area
  2. 2. G Flex2 5.5 in · 16:9 About 83.4 cm² rectangular area

G Flex2 has approximately 6.8% more rectangular screen area than J4.

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
StorageJ4G Flex2
32 GB 1 GB RAM Unknown
G Flex2: Original memory entry

16 GB · 2 GB RAM/ 32 GB · 3 GB 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. J4

NFC
Unknown
Headphone jack
Yes
Memory card support
See details microSDXC

2. G Flex2

NFC
Yes
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. G Flex23000 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. G Flex2

Everyday essentials
Everyday essentials
SpecificationJ4G Flex2
Dimensions (HxWxD)
  • 151 Х 72.3 Х 10 mm
  • 149.1 Х 75.3 Х 9.4 mm
Weight
  • 158 g
  • 152 g
Technology
  • IPS LCD
  • Curved P-OLED
Screen size
  • 5.5" inch
  • 5.5" inch
Screen resolution
  • 720 x 1440 px
  • 1080 x 1920 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/ 32 GB
  • 3 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
  • 3000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Android 5.0.1 (Lollipop)
  • upgradable to 6.0.1 (Marshmallow)
Chipset Unknown
  • Qualcomm MSM8994 Snapdragon 810 (20 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display
SpecificationJ4G Flex2
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 78.1 cm2
  • 82.6 cm2
Screen format
  • 18:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 71.5%
  • 73.5%
PPI /points per inch/
  • 293 PPI
  • 403 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video
SpecificationJ4G Flex2
Rear camera, main
  • 8 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 13 MP
  • f/2.4
  • OIS
  • laser AF
Functions
  • LED flash
  • Dual-LED flash
  • panorama
  • HDR
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 2.1 MP
  • Single
Specifications
  • 8 MP
  • 2.1 MP
Performance
Performance
SpecificationJ4G Flex2
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Octa-core (4x1.5 GHz Cortex-A53 & 4x2.0 GHz Cortex-A57)
Graphics processor GPU
  • Mali-400
  • Adreno 430
Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
  • 54177
GeekBench 4 Single CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
  • 1134
GeekBench 4 Multi-CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
  • 3472
General specs
General specs
SpecificationJ4G Flex2
Release date
  • 2019
  • October
  • 2015
  • January
Colors
  • Blue
  • Black
  • Brown
  • Platinum Silver
  • Flamenco Red
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 270 EUR
Battery life Unknown
  • Stand by time- Up to 520 h (2G) / Up to 450 h (3G) Talking time- Up to 18 h (2G) / Up to 20 h (3G)
Body build Unknown
  • Curved body and display
Communication and Connectivity
Communication and Connectivity
SpecificationJ4G Flex2
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Micro-SIM
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 CDMA 800 / 1900 - US995 (U.S. Cellular) -3G - HSDPA 850 / 900 / 1900 / 2100 CDMA2000 1xEV-DO - US995 (U.S. Cellular) -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800) - H955 LTE band 2(1900)
  • 4(1700/2100)
  • 12(700)
  • 25(1900)
  • 26(850)
  • 41(2500) - LS996 (Sprint) LTE band 1(2100)
  • 2(1900)
  • 5(850)
  • 17(700) - H950 (AT&T) LTE - US995 (U.S. Cellular)
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA 42.2/21.1 Mbps
  • LTE-A Cat6 300/50 MbpsLTE-A
  • EV-DO Rev.A 3.1 Mbps - US995 (U.S. Cellular)
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0 (SlimPort)
  • USB Host
Bluetooth
  • 4.1
  • A2DP
  • LE
  • 4.1
  • A2DP
  • LE
  • aptX
Harmful irradiation Unknown
  • SAR - 1.10 W/kg (head) 1.07 W/kg (body) SAR EU - 0.68 W/kg (head) 0.44 W/kg (body)
Music and Audio
Music and Audio
SpecificationJ4G Flex2
Radio
  • FM radio
  • Stereo FM radio
  • RDS
Others Unknown
  • Dolby Mobile -Active noise cancellation with dedicated mic
Other features
Other features
SpecificationJ4G Flex2
Dop
  • Sensors Accelerometer For USA
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • color spectrum
  • Infrared port - Fast battery charging (Quick Charge 2.0) -DMB TV tuner (Korean model only) - Self-healing back panel coating - Versions: LG H955 (EMEA)
  • LG LS996 (Sprint)
  • LG H950 (AT&T)
  • LG US995 (U.S. Cellular)