BLU J4 vs Lenovo A1900

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

    A1900: 41 g lighter

    J4:
    158 g
    A1900:
    117 g
  • Width

    A1900: 10.3 mm narrower

    J4:
    72.3 mm
    A1900:
    62 mm
  • Screen diagonal

    A1900: 1.5 in smaller diagonal

    J4:
    5.5 in
    A1900:
    4 in
  • Depth

    A1900: 0.5 mm thinner

    J4:
    10 mm
    A1900:
    9.5 mm
  • Height

    A1900: 30 mm shorter

    J4:
    151 mm
    A1900:
    121 mm
  • Release year

    J4:
    2019
    A1900:
    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.

  1. 1. J4

    Height:
    151 mm +30 mm versus A1900
    Width:
    72.3 mm +10.3 mm versus A1900
    Depth:
    10 mm +0.5 mm versus A1900
  2. 2. A1900

    Height:
    121 mm
    Width:
    62 mm
    Depth:
    9.5 mm

Weight

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

  1. 1. J4

    158 g

    +41 g versus A1900

  2. 2. A1900

    117 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. J4

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    78.1 cm²
  2. 2. A1900

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²

J4 has approximately 71.4% more rectangular screen area than A1900.

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, A1900, compared at the same storage capacity.
StorageJ4A1900
32 GB 1 GB RAM Unknown
A1900: 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. J4

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

2. A1900

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 16 GB (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. J4

    2200 mAh

    +700 mAh versus A1900

  2. 2. A1900

    1500 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. J42. A1900

Everyday essentials
Everyday essentials — specifications for J4, A1900.
SpecificationJ4A1900
Dimensions (HxWxD)
  • 151 Х 72.3 Х 10 mm
  • 121 Х 62 Х 9.5 mm
Weight
  • 158 g
  • 117 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 4" inch
Screen resolution
  • 720 x 1440 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 1GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSDXC
  • microSD
  • up to 16 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2200 mAh
  • Removable Li-Po
  • 1500 mAh
  • Removable Li-Ion
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Android 4.4.2 (KitKat)
Chipset Unknown
  • Spreadtrum SC7730
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for J4, A1900.
SpecificationJ4A1900
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 78.1 cm2
  • 45.5 cm2
Screen format
  • 18:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 71.5%
  • 60.7%
PPI /points per inch/
  • 293 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for J4, A1900.
SpecificationJ4A1900
Rear camera, main
  • 8 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 2 MP
Functions
  • LED flash
Unknown
Video
  • 720p@30fps
  • Yes
Front camera, selfie
  • 8 MP
  • Single
  • 0 MP,
Specifications
  • 8 MP
Unknown
Performance
Performance — specifications for J4, A1900.
SpecificationJ4A1900
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • Mali-400
  • Mali-400
General specs
General specs — specifications for J4, A1900.
SpecificationJ4A1900
Release date
  • 2019
  • October
  • 2015
  • April
Colors
  • Blue
  • Black
  • Brown
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 60 EUR
Communication and Connectivity
Communication and Connectivity — specifications for J4, A1900.
SpecificationJ4A1900
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Mini-SIM/ Micro-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
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA
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
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.1
  • A2DP
  • LE
  • 2.0
Music and Audio
Music and Audio — specifications for J4, A1900.
SpecificationJ4A1900
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for J4, A1900.
SpecificationJ4A1900
Dop
  • Sensors Accelerometer For USA
  • Sensors Accelerometer
  • proximity