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BLU J4 vs Xiaomi Mi Note

Compare recorded specifications, size and practical differences.

BLU J4

BLU J4

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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.

  • WidthJ4: 5.3 mm narrowerJ4: 72.3 mm · Mi Note: 77.6 mm
  • Screen diagonalJ4: 0.2 in smaller diagonalJ4: 5.5 in · Mi Note: 5.7 in
  • DepthMi Note: 3 mm thinnerMi Note: 7 mm · J4: 10 mm
  • HeightJ4: 4.1 mm shorterJ4: 151 mm · Mi Note: 155.1 mm
  • Release year2019 / 2015J4: 2019 · Mi Note: 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 Mi Note: 155.1 × 77.6 mm 2
Side
J4: 151 × 10 mm 1 Mi Note: 155.1 × 7 mm 2
  1. 1. J4
    Height
    151 mm
    Width
    72.3 mm
    Depth
    10 mm
    Weight
    158 g
  2. 2. Mi Note
    Height
    155.1 mm
    Width
    77.6 mm
    Depth
    7 mm
    Weight
    161 g

Specifications

Open a section for more detail. Scroll inside a table to keep phone names visible; on narrow screens, swipe sideways or use the arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

Everyday essentials
Everyday essentials
SpecificationJ4Mi Note
Dimensions (HxWxD)
  • 151 Х 72.3 Х 10 mm
  • 155.1 Х 77.6 Х 7 mm
Weight
  • 158 g
  • 161 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 5.7" 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
  • 16/64 GB
  • 3 GB RAM
Memory card support
  • microSDXC
  • No
BatteryCapacity 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 4.4.4 (KitKat)
  • upgradable to 6.0 (Marshmallow)
Chipset Unknown
  • Qualcomm MSM8974AC Snapdragon 801 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display
SpecificationJ4Mi Note
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 78.1 cm2
  • 89.6 cm2
Screen format
  • 18:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 71.5%
  • 74.4%
PPI /points per inch/
  • 293 PPI
  • 386 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video
SpecificationJ4Mi Note
Rear camera, main
  • 8 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 13 MP
  • OIS
  • AF
  • f/2.0
Functions
  • LED flash
  • Dual-LED dual-tone flash
  • HDR
  • panorama
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 4 MP
  • Single
Specifications
  • 8 MP
  • 4 MP
  • f/2.0
  • 1/3''
  • 2µm
Performance
Performance
SpecificationJ4Mi Note
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Quad-core 2.5 GHz Krait 400
Graphics processor GPU
  • Mali-400
  • Adreno 330
GeekBench 4 Single CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
  • 928
GeekBench 4 Multi-CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
  • 2128
GeekBench 4 RenderScriptLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
  • 2038
General specs
General specs
SpecificationJ4Mi Note
Release date
  • 2019
  • October
  • 2015
  • January
Colors
  • Blue
  • Black
  • Brown
  • Black
  • White
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 190 EUR
Body build Unknown
  • Front/back glass (Gorilla Glass 3)
  • aluminum frame
Communication and Connectivity
Communication and Connectivity
SpecificationJ4Mi Note
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Micro-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 -3G - HSDPA 850 / 1900 / 2100 TD-SCDMA -4G - LTE band 3(1800)
  • 7(2600)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA
  • 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 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 Host
Bluetooth
  • 4.1
  • A2DP
  • LE
  • 4.1
  • A2DP
  • LE
Music and Audio
Music and Audio
SpecificationJ4Mi Note
Radio
  • FM radio
  • No
Others Unknown
  • 24-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Other features
SpecificationJ4Mi Note
Dop
  • Sensors Accelerometer For USA
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • barometer - Fast battery charging (Quick Charge 2.0)