BLU J4 vs Xiaomi Redmi Note 3 (MediaTek)

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

    J4: 6 g lighter

    J4:
    158 g
    Redmi Note 3 (MediaTek):
    164 g
  • Width

    J4: 3.7 mm narrower

    J4:
    72.3 mm
    Redmi Note 3 (MediaTek):
    76 mm
  • Depth

    Redmi Note 3 (MediaTek): 1.3 mm thinner

    J4:
    10 mm
    Redmi Note 3 (MediaTek):
    8.7 mm
  • Release year

    J4:
    2019
    Redmi Note 3 (MediaTek):
    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
    Width:
    72.3 mm
    Depth:
    10 mm +1.3 mm versus Redmi Note 3 (MediaTek)
  2. 2. Redmi Note 3 (MediaTek)

    Height:
    150 mm
    Width:
    76 mm +3.7 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. Redmi Note 3 (MediaTek)

    164 g

    +6 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. Redmi Note 3 (MediaTek)

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

Redmi Note 3 (MediaTek) 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 for J4, Redmi Note 3 (MediaTek), compared at the same storage capacity.
StorageJ4Redmi Note 3 (MediaTek)
32 GB 1 GB RAM Unknown
Redmi Note 3 (MediaTek): Original memory entry

16 GB · 2 GB RAM32 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. Redmi Note 3 (MediaTek)

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
No

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. Redmi Note 3 (MediaTek)

    4000 mAh

    +1800 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. Redmi Note 3 (MediaTek)

Everyday essentials
Everyday essentials — specifications for J4, Redmi Note 3 (MediaTek).
SpecificationJ4Redmi Note 3 (MediaTek)
Dimensions (HxWxD)
  • 151 Х 72.3 Х 10 mm
  • 150 Х 76 Х 8.7 mm
Weight
  • 158 g
  • 164 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 5.5" inch
Screen resolution
  • 720 x 1440 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 1GB RAM
  • 16 GB
  • 2 GB RAM32 GB
  • 3 GB RAM
Memory card support
  • microSDXC
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 2200 mAh
  • Removable Li-Po
  • 4000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Android 5.0.2 (Lollipop); MIUI 7
Chipset Unknown
  • Mediatek MT6795 Helio X10 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for J4, Redmi Note 3 (MediaTek).
SpecificationJ4Redmi Note 3 (MediaTek)
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%
  • 72.4%
PPI /points per inch/
  • 293 PPI
  • 403 PPI
Camera and Video
Camera and Video — specifications for J4, Redmi Note 3 (MediaTek).
SpecificationJ4Redmi Note 3 (MediaTek)
Rear camera, main
  • 8 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 13 MP
  • PDAF
  • f/2.2
Functions
  • LED flash
  • Dual-LED dual-tone flash
  • HDR
  • panorama
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 8 MP
  • 5 MP
  • f/2.0
Performance

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

Performance — specifications for J4, Redmi Note 3 (MediaTek).
SpecificationJ4Redmi Note 3 (MediaTek)
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Octa-core 2.0 GHz Cortex-A53
Graphics processor GPU
  • Mali-400
  • PowerVR G6200
GeekBench 4 Single Core * Unknown
  • 1399
GeekBench 5 Single Core * Unknown
  • 273
General specs
General specs — specifications for J4, Redmi Note 3 (MediaTek).
SpecificationJ4Redmi Note 3 (MediaTek)
Release date
  • 2019
  • October
  • 2015
  • November
Colors
  • Blue
  • Black
  • Brown
  • Silver
  • Gray
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 180 EUR
Battery life Unknown
  • Stand by time- Up to 264 h (3G) Music play - Up to 60 h
Communication and Connectivity
Communication and Connectivity — specifications for J4, Redmi Note 3 (MediaTek).
SpecificationJ4Redmi Note 3 (MediaTek)
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual 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 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 TD-SCDMA -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA
  • LTE
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
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 4.1
  • A2DP
  • LE
  • 4.1
  • A2DP
  • LE
Harmful irradiation Unknown
  • SAR EU - 0.33 W/kg (head)
Music and Audio
Music and Audio — specifications for J4, Redmi Note 3 (MediaTek).
SpecificationJ4Redmi Note 3 (MediaTek)
Radio
  • FM radio
  • Stereo FM radio
  • recording
Others Unknown
  • 24-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for J4, Redmi Note 3 (MediaTek).
SpecificationJ4Redmi Note 3 (MediaTek)
Dop
  • Sensors Accelerometer For USA
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast battery charging