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BLU J4 vs Xiaomi Mi Note 10

Compare recorded specifications, size and practical differences.

+ Add a third phone

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 technology

    OLED versus LCD

    J4:
    LCD
    Mi Note 10:
    OLED
  • Weight

    J4: 50 g lighter

    J4:
    158 g
    Mi Note 10:
    208 g
  • Width

    J4: 1.9 mm narrower

    J4:
    72.3 mm
    Mi Note 10:
    74.2 mm
  • Screen diagonal

    J4: 0.97 in smaller diagonal

    J4:
    5.5 in
    Mi Note 10:
    6.47 in
  • Height

    J4: 6.8 mm shorter

    J4:
    151 mm
    Mi Note 10:
    157.8 mm

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
  2. 2. Mi Note 10

    Height:
    157.8 mm +6.8 mm versus J4
    Width:
    74.2 mm +1.9 mm versus J4
    Depth:
    9.7 mm

Weight

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

  1. 1. J4

    158 g

  2. 2. Mi Note 10

    208 g

    +50 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. Mi Note 10

    Screen diagonal:
    6.47 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    102.8 cm²

Mi Note 10 has approximately 31.6% 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, Mi Note 10, compared at the same storage capacity.
StorageJ4Mi Note 10
32 GB 1 GB RAM Not recorded
128 GB Not recorded 6 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. Mi Note 10

NFC:
Yes
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. Mi Note 10

    5260 mAh

    +3060 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. Mi Note 10

Everyday essentials
Everyday essentials — specifications for J4, Mi Note 10.
SpecificationJ4Mi Note 10
Dimensions (HxWxD)
  • 151 Х 72.3 Х 10 mm
  • 157.8 Х 74.2 Х 9.7 mm
Weight
  • 158 g
  • 208 g
Technology
  • IPS LCD
  • AMOLED
Screen size
  • 5.5" inch
  • 6.47" inch
Screen resolution
  • 720 x 1440 px
  • 1080 x 2340 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 1GB RAM
  • 128GB 6GB RAM
Memory card support
  • microSDXC
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 2200 mAh
  • Removable Li-Po
  • 5260 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Android 9.0 (Pie); MIUI 11
Chipset Unknown
  • Qualcomm SDM730 Snapdragon 730G (8 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for J4, Mi Note 10.
SpecificationJ4Mi Note 10
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 78.1 cm2
  • 102.8 cm2
Screen format
  • 18:9 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 71.5%
  • 87.8%
PPI /points per inch/
  • 293 PPI
  • 398 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video

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

Camera and Video — specifications for J4, Mi Note 10.
SpecificationJ4Mi Note 10
Rear camera, main
  • 8 MP
  • Single
  • 108 MP
  • Five
Camera specs
  • 8 MP
  • AF
  • 108 MP (7P lens)
  • f/1.7
  • 25mm (wide)
  • 1/1.33''
  • 0.8µm
  • PDAF
  • laser AF
  • OIS -12 MP
  • f/2.0
  • 50mm (telephoto)
  • 1/2.55''
  • 1.4µm
  • dual pixel PDAF
  • 2x optical zoom -5 MP (upscaled to 8MP)
  • (telephoto)
  • 1.0µm
  • OIS
  • 5x optical zoom -20 MP
  • f/2.2
  • 13mm (ultrawide)
  • 1/2.8''
  • Laser AF -2 MP
  • f/2.4
  • 1/5''
  • 1.75µm (dedicated macro camera)
Functions
  • LED flash
  • HDR
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 32 MP
  • Single
Specifications
  • 8 MP
  • 32 MP
  • f/2.0
  • 26mm (wide)
  • 1/2.8"
  • 0.8µm
DxOMark Main Score * Unknown
  • 121
DxOMark Photo * Unknown
  • 130
DxOMark Video * Unknown
  • 102
Performance

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

Performance — specifications for J4, Mi Note 10.
SpecificationJ4Mi Note 10
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)
Graphics processor GPU
  • Mali-400
  • Adreno 618
Antutu 8 score * Unknown
  • 264576
GeekBench 5 Single Core * Unknown
  • 532
GeekBench 5 Multi-Core * Unknown
  • 1688
General specs
General specs — specifications for J4, Mi Note 10.
SpecificationJ4Mi Note 10
Release date
  • 2019
  • October
  • 2019
  • November
Colors
  • Blue
  • Black
  • Brown
  • Aurora Green
  • Glacier white
  • Midnight Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 500 EUR
Body build Unknown
  • Front/back glass (Gorilla Glass 5)
  • aluminum frame
Communication and Connectivity
Communication and Connectivity — specifications for J4, Mi Note 10.
SpecificationJ4Mi Note 10
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • 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 -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 18(800)
  • 19(800)
  • 20(800)
  • 26(850)
  • 28(700)
  • 38(2600)
  • 40(2300)
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat15 800/150 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
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB
  • microUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 4.1
  • A2DP
  • LE
  • 5.0
  • A2DP
  • LE
  • aptX HD
Music and Audio
Music and Audio — specifications for J4, Mi Note 10.
SpecificationJ4Mi Note 10
Radio
  • FM radio
  • FM radio
Others Unknown
  • 600 nits max brightness -DCI-P3 -HDR10 -Always-on display
  • Active noise cancellation with dedicated mic -24-bit/192kHz audio
Other features
Other features — specifications for J4, Mi Note 10.
SpecificationJ4Mi Note 10
Dop
  • Sensors Accelerometer For USA
  • Sensors Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast battery charging 30W (58% in 30 min.
  • 100% in 65 min.) -USB Power Delivery - For Global market